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ThinkCentre: recommissioned system will not boot from HDD; BIOS, AMT, PXE, M91p

Q: ThinkCentre: recommissioned system will not boot from HDD; BIOS, AMT, PXE, M91p

bought a ThinkCentre M91p, minus the hard drive. The bios rev is 9HKT43AUS and BOOT block is 9H43A
Fitted a blank 2TB hard drive, with the intention of loading LINUX mint. My problem is that the system is still
attempting to boot from a non existing LAN. The original specification inculded PXE V2.1 and AMT 7.1
How Can I return this Unit to boot normally to the HHD. Will upgrading the Bios Acheive this, or must I also
work on the Uefi. Sorry if this seems simple It is causing me a large amount of stress.

Mod: expanded the problem description on the Subject line


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Preferred Solution: ThinkCentre: recommissioned system will not boot from HDD; BIOS, AMT, PXE, M91p

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)

A: ThinkCentre: recommissioned system will not boot from HDD; BIOS, AMT, PXE, M91p

I'd recommend going into the UEFI, which replaces the old BIOS standard, and resetting to optimal defaults, which will likely fix the issue. You also should update it, if you have access to a Windows system use rufus to format a bootable dos usb stick and copy the contents of the USB Drive UEFI BIOS Flash Package so you won't need Windows (or a CD) on the actual system to do updates. The current version is 58 vs the 43 you have on there now. By the way you can also use rufus to install Windows to a usb drive for 'Windows To Go' mode which is quite useful at times, especially if you don't want Windows on the system itself. You can download a Windows 10 iso directly from Microsoft's website and via rufus 'Windows To Go' mode isn't limited to just the Enterprise version. CHANGES for 9HKT58A/9HJT58A
-Maintenance release.

-Update CPU microcode for VT FlexPriority.

- Updates the CPU microcode M12206A7_00000028.PDB.

- Computrace update.
- Upgrades flash BIOS tool afuwingui.

- Modify C State Support option items in WMI and related help messages in BIOS Setup.

- Replaces bitlocker issue solution, which was added in 50A, with a new solution.
- Fixes CPU Cache Info is incorrect in SMBIOS.
- Adds a C0 item option for C state and modify correlative descriptions.

-Upgrades MEBX to new version MEBX released with ME kit(MEBX:
-Fixes where UUT can't be waked up in Weekly Event mode by RTC when set "System Date" to some day of 2012.
-Fixes where a bitlocker issue about PCR 5 measuring.
-Adds a patch for fingerprint keyboard issue.

-Update the CPU microcode M12206A7_00000025.PDB

-Fixes Fan curve Lost after resuming from S3.
-Upgrades ME_BIOS_Extension to

-Updates the CPU microcode.
-Adds an control item "Low MMIO Align" in BIOS Setup.
-Removes the BIOS solution for parallel port resource arrangement added in 44A.

-Modify the Hard disk name display format in BIOS Setup.
-Fixes the CPU test error in the application PC-Doctor.
-Fixes where it will input two characters when just press the Fingerprint keyboard once in sometimes.
-Fixes the Parallel port resource arrangement in OS don't match the settings in BIOS Setup.
-Fixes where user can still enter BIOS Setup without using the administer password in some condition.

-Added the CPU & Chipset CRID function control item in BIOS Setup.
-Fixes the compatible issue with P690 video card.
-Fixes the compatible issue with Intel Celeron G440 CPU.
-Removes the USB controller in OS device manager when selection "USB Support" as "Disabled".

-Fixes the System Serial Number display style which can not be restored when doing CMOS data restore.
-Fixes the TCG Security Feature status which can not be restored to disabled in some special condition.

-Added support for more types of Intel SandyBridge processor. (I5-2320, I3-2130, I3-2125, I3-2120T, G860, G630, G630T, G540, G530, G530T, G440)
-Added support for 2.2 TB hard drivers in Raid mode.
-Fixes the RTC weekly wake up function when it is sometimes invalid.
-Fixes the system which will boot from Auto Boot Sequence when it reboots the Window XP OS after resuming from S3.

- Fixes the Front USB port which cannot work when connecting with AMT KVM function.
- Fixes the compatibility with ATI 2400 Video card.
- Fixes the issue where XP cannot enter into S3 sleep mode
- Fixes thDisk error issue in the AMT web GUI's event log.
- Fixes some punctuation error in BIOS Setup help message.
- Fixes the issue where of post error display when 2 or more more Fingerprint Keyboards are connected.
- Fixes some types of USB 3.0 HDD which wrongly recognized as FDD in BIOS Setup.
- Fixes the Port connector and System Slot information in SMBIOS which does not match.

- Fixes system which will hang during shutting down OS, when set "Onboard Ethernet Controller" to disabled in Setup menu.
- Fixes system which will sometimes hang at Lenovo logo picture during the system power on.
- Fixes system can be reboot by pressing "CTRL+ALT+DEL" after entering password incorrectly 3 times in Setup menu.
- Fixes no screen output from client system during SOL.
- Fixes COM1 loopback test fail when run burnin 6.0 while the COM2 connects with a COM connector.

- Fixes no boot device in USB Floppy type when there is no Floopy disk in FDD.
- Fixes system can be woken up from S3&S4 by COM modem after disabled wake up
function in Power management.
- Fixes can not set "123" as the password For Samsung HD502HJ HDD.

- Corrects SMBIOS information of CPU (External clock and L2-Cache size).
- Fixes can't recover BIOS with PLEXTOR CD-R PX-W2410A1.03 USB ODD.

- Fixes fingerprint can not relate password issue.
- Fixes remotebios tools can not change password issue.

- Initial Production BIOS release

Red Hat - SSMEThinkCentre m900 Tiny - ThinkPad W541 - ThinkPad Yoga 260

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Hi, I am trying to add a second drive (250GB Samsung EVO 850 SSD) to my M91p but I don't see it in the bios. I have tried the 4 sata ports and no luck. The SSd works fine, I pluged it to a docking station and I could format it with my windows laptop.  Samsung magician didn't allow me to do anything via USB. My bios version is 9HKT58AUS 9H45A 06/10/2014 Anybody knows what I could do?

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I just got a recent AMD Polaris card (RX 550) for Lenovo ThinkCentre M91p, and it simply doesn't boot with it. It doesn't even get to the starting splash screen with Lenovo logo. The monitor remains blank. I updated the BIOS to the last release I could find but it still didn't help. Can anything be done with it? It works with Nvidia cards, but I'm running Linux and want to use open drivers, so AMD is a much better option. I replaced the power supply by the way with better one.

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First of all, I would like to appologize since Im not an expert on IT and I dont know most of the technical words to refeer to some things... And so I have my computer at work. I used to love it because it was so fast and I could do plenty of tasks with it at the same time (e.i. listening to music while I translate some docs, searching on internet looking for words, forums, etc.) But last year, it started to reboot/restart by itselft. I realized it happens when I see videos on youtube (but not always), when I check some websites with music or when the website has too much information and pics and similars (for instance, online news websites, official websites, etc.) Last year also, it had a sound coming form the CPU...It was like the ventilator I think, but now not any more. When I ran the examination everything seems fine so I really dont know what is wrong with it... Someone had experience something similar???

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Hello Lenovo Support Forum! This is my first post here, happy to meet you all. My question goes like this : On a out-of-warranty ThinkCentre M91p, if we replace the standard CPU (i5) with a socket compatible Xeon CPU, will the motherboard support ECC RAM? ThinkCentre M91p desktopModel : 7052A7F Best regards,Idexo


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A:ThinkCentre M91p motherboard and ECC RAM??

My question goes like this : On a out-of-warranty ThinkCentre M91p, if we replace the standard CPU (i5) with a socket compatible Xeon CPU, will the motherboard support ECC RAM?

No.  It's the Intel Chipset that interfaces to memory, and only workstation and server Chipsets support ECC.  Check the specs for your desktop Chipset if you like. 
Also, just because a processor will fit into the socket, does not mean it will be supported by the BIOS.   Sometimes there is overlap between ThinkCentres and ThinkStations which do use Xeons.   If so, that Thinkstation model will be listed on your BIOS download page, but for unknown reasons that upgrade does not always work. 

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Hiya, In my current PC I have an i5 3470, and In the Thinkcentre M91p i have recently purchased, it has an i7 2600, which is a little overkill for what ive purhcased it for, so I was thinking of swapping the cpu's so I have the 2600 in my gaming PC and the Thinkcentre gets the 3470.However I'm not sure if this would work as I have no idea whether the motherboard of the ThinkCentre would accept the new Ivy Bridge chip, and I don't even know if my Asus P8H77-V would accept the 2600?So would this work? and how would I go about doing it? Im a noob at all this im sorry ;(All answers are much appreciated, Ajsski99

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I recently (November 2018) purchased the following system through Amazon: Lenovo ThinkCentre Premium High Performance M91P Desktop Computer, Intel Core i5 Quad-Core Processor 3.1GHz, 8GB RAM, 1TB HDD, Windows 10 Home (Certified Refurbished) (This is the product description from the Amazon website.)  From the Lenovo support website, their lookup tool gave me the following info specific to my PC:Serial #: MJPYNVMMachine Type Model: 7033A25 According to www.datamemorysystems.com the maximum capacity is 16GB.And the memory type is: 4 x 4GB DDR3-1333 (PC3-10600)  512x64  CL9  1.5v  240pin  DIMM I provide this information for the benefit of others who need this info and to see if anyone disagrees before I go out and buy it. Thanks and good luck,gstarnes55   Here's just a little background info:(This post is not a complaint.  So far, I'm happy with the PC.  It has a couple of glitches but I expected as much since it's a refurb.) It actually arrived with 7GB RAM and 2TB HDD.  (I guess they traded off 1GB of RAM for 1TB of HDD?) In my experience you always install RAM in pairs or, at least, even numbers.  There are four slots on this machine filled as follows: 2GB+2GB+2GB+1GB.  Just seems odd. When I first booted up the machine I was getting memory errors every five or ten minutes.  It was a pop-up window saying something like "Cannot write data to memory address xxxxxxxx... Read more

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Hello, I recently bought a Thinkcentre m91p desktop. It comes with an Intel Core i5-2400 and a motherboard Lenovo 7052A9G (BIOS 9HKT47AUS - 01/10/2012). What is strange is that the CPU fan runs almost all the time at full speed. I installed HWMonitor and the CPU temperature is normal, but I noticed that one value, the VR temp, is changing all the time and is very high (around 100C and sometimes more than 200C, even at startup). I'm thinking about buying a Zalman Fanmate in order to control manually the CPU fan, but I would like to know if this is a known problem and if there's a solution to fix this. Thanks !  

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Hello everyone! I've tried upgrading my ThinkCentre M91p with a R7 250X graphics card and a 500W PSU. The graphics card is slightly bigger than the one that came with the desktop, if that information is any helpful. The problem is that the PC turns on, but my monitor doesn't recieve any output. I checked the slots and everything is plugged in as it should be. According to some similar topics, the GPU is too strong for the BIOS. Is there any way to fix this? This is the only graphics card I have. Thank you!

A:ThinkCentre M91p won't work with AMD R7 250X

See this recent thread:  Lenovo-m91p-White-List-GPUs
M91p BIOS has two modes, UEFI and a compatibility? mode, I suggest you try both.  Also, check that the BIOS setting for the Video Devices is set to [AUTO], or has the Multi-Monitor Support = Enabled.  Otherwise, it may only use the internal graphics, ignoring the card.   

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Kingston a400 (120GB) or Samsung 860 EVO (250GB), Are these SSD's compatible with M91p (4524-PJ1)?. I need to upgrade my PC

A:Compatible SSD with ThinkCentre M91p (4524-PJ1)?

I used a Samsung 850 Evo 250 GB in a M91p tower.  So the 860, being an update, will work also. 

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Hello, I cannot find the way to install an AMD FirePro v3900 on a ThinkCentre M91p.I need such board for sharing the desktop between two monitors having a DisplayPort and a DVI and don't have enough time to purchase another board. On the M92p, I can use it by going in the BIOS, set the video settings to "PEG" (PCI-e Graphics Device), enable Multi-Monitor support. The cards works and I can later install the driver (coming with AMD Catalyst) to obtain the possibility extending the desktop to two screens. But on the M91p, it does not work : the screen connected to the PCI Express graphic card reports "no signal" no matter if I connect the display with the DVI or the DisplayPort. I also tried setting the video to "IGD" (Internal Graphics Device) or to "Auto" with the graphic card plugged, but connecting the cable to the M91p's native VGA or DisplayPort, with the hope that I could see something and install the driver for the graphic card. But there is no signal to the native ports when the video card is plugged. I also trid using AMD Radeon cards which were working with ThinkCenter M91p or M92p.One with HDMI+DVI works.One with DisplayPort+DVI doesn't.I need a board with DisplayPort (DP) as most of my screens have DP and no HDMI. The drivers are up to date (including the chipset). Only the BIOS was not updated.Should I update it ? Or does the problem have other origin (e.g. power) ? Thank you very much for your help.

A:Cannot use AMD FirePro v3900 on ThinkCentre M91p S...

Upgraded the BIOS : no change :-(

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I have a ThinkCentre (SFF) M series, M91P, type 4518ESU, running Windows 10. Can I add internal Bluetooth?

A:ThinkCentre M series M91P Bluetooth

A better way to add Bluetooth to a desktop is with a USB dongle.   
Bluetooth is a quickly evolving technology, and to support later devices, you'll need an adapter that supports the latest versions of Bluetooth.    'Newegg' is a good place to look for anything computer related.

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Bought one of these beauties on amazon,  So far ive given it 16gb ram, and a msi 1050ti 4gt lp. it has an I5-2400, #1 would it be worth it swap in an i7-2600, and if so, does anything need changing? #2 all of the reviews ive read say that the 240w psu handles it, but should i upgrade, and to what? Thank you!

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Updated to Windows 10 Pro x64 and now multiple BSODs per day. I've run the Lenovo driver updates and everything is up-to-date including power management software. Also reset BIOS to defaults. The BSODs seem to be related to sleep mode but not 100% sure about that. The BSOD message is "driver irql not less or equal...ndis.sys". I only have one add-on to the unit, a USB3 card. Anybody else having this or suggestions on how to proceed? I'm considering rolling back to W7.

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A:ThinkCentre M91p 7033A1U - Windows 10 BSOD

Intel does not support this processor (Sandy Bridge) for Windows 10. http://www.intel.com/content/www/us/en/support/processors/000006105.html

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I have the 2N3904 transistor, that used as thermal sensor.Genuine-Lenovo-ThinkCentre-M91P-M73-Temperature-Sensor-Cable-SFF-54Y9922 Genuine-Lenovo-ThinkCentre-...Can somebody give me a pinout of the thermal sensor connector for properly wiring this transistor to the connector?

A:thinkcentre m91p temp sensor pinout

I'm confused, the photo in the link above shows it having a connector.  Isn't a case of simply connecting it to where the old one was?  

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Hello everyone,Recently my motherboard started to beep twice and just has a black screen. I made sure to have the power cables plugged in and everything. It did two beeps continually.  I redid all the cables and now it just beeps twice on start up (doesnt show up on monitor & backup monitor) and doesn't beep anymore.  Thanks for any help! -Tyler

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Hey everyone, I am trying to install new parts onto my workstation. I accidently unplugged the cables that connect to the power switch and such. I was wondering if there was a manual for the Motherboard that would show me exactly where to plug the switches in at. I have attached a picture just to show what I mean (hard for me to explain sorry) This is a picture of another manual that wasn't the right motherboard.  Thanks for the help! -Tyler

Capture.PNG ?191 KB

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Computer will not boot into or past BIOS since BIOS update to FWKT86A  on 5/30/2018, unless dongel from Microsoft wireless key board and mouse is removed prior to start up. With the dongle removed maching boot normally and works with the Microsoft keyboard and mouse when plugged in. Is there a fix for this or do I need to roll back my BIOS? 

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Lenovo ThinkCentre M91p 7033-A2U Intel i5 3.1GHz 8GB RAMIs it possible  to run A kitchen design program called 2020 spaces similar to auto cad on this computer.Also should I add seperate video card which one?Could I put ECC ram if yes  would it be better or it wont help me which one and how much ram or this computer wont do the job?

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How do I fix my Lenovo ThinkCentre High Performance M91P Desktop Computer that froze, fan speed increases and won't display on the monitor anymore?Hello, today my computer froze and now I can't see the screen anymore. It's been freezing multiple times but now after I unplugged it, it won't display anymore. I have a meeting tomorrow on this computer! This is the last time I buy a "certified refurbished" computer on Amazon !  Also, when I turned the computer back on the fan speed increased. It was getting louder and louder. I thought it was going to explode! Well I repeatedly hold down the power button and unplug the power cord and that's not working. That's what I would do every time my screen froze in the past. The screen would freeze, I couldn't move the mouse either. The light on the desktop is on, I tightened the cord of the monitor to make sure it's connected properly, and the mouse light is still on. The exact desktop name: Lenovo ThinkCentre Premium High Performance M91P Desktop Computer, Intel Core i5 Quad-Core Processor 3.1GHz, 8GB RAM, 1TB HDD, Windows 10 Home (Certified Refurbished) ...and I purchased it on Amazon. I bought this desktop in April of this year and now I don't have product support via amazon anymore. I can't find the serial number on this computer. 

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Having a hard time finding a part number for the secondary hard drive cage.  This would be the cage that is L-shaped and attaches to the base of the tower.  For now I was able to put the 2nd hard drive in the card reader bay, but would prefer to mount as designed as I'm concerned with the heat associated with one hard drive mounted directly about the other.thanksjoe

A:Secondary hard drive cage for Thinkcentre M91p 4524

Since no one ever answered this, and I have one in front of me...The sticker says the part number is 43N9680The stampings in the metal say 1B03AFY00 REV B and 2G266-01 REV B

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My daughter has a M91P model 7052-A9G serial number S4VEK82 running Windows XP SP3 for compatibility with legacy software.  Her existing monitor is connected via VGA and she now wishes to use a Dell U2715H for better definition.
When she connects the new monitor to the display port on the M91P it is not recognised by the system and the video is still only active on the VGA port.
She is 80 miles from me and I support her using Team Viewer which enabled me to switch the desktop display properties to digital but still no output on the Dell so I changed it back to VGA so that she could work.
The new monitor and display port cable has been tested on a friend's computer where it worked OK.
Has anybody met this before and how did you resolve it.
Many thanks, Firkle
Mod:  obscured the serial number to prevent it's unauthorized use; edited the Subject line to expand the problem description


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A:ThinkCentre M91p: will not connect to Dell U2715H monitor via DisplayPort, no signal (DP ver. 1.1)

When I Googled for your problem, I found this on the Dell forum.  The built-in Intel graphics on M91p has DP 1.1: 

RE: U2515H - "no signal coming from your computer"

This happened to me when I enabled DP 1.2 option in the menu.
If that is the case, you do not have a DP 1.2 compatible hardware and software/OS. (perhaps if you are using a linux machine)
When your monitor tells no signal... push a menu button for about 10 seconds. It will show you other input sources, keep pushing. Then it will bring a menu to disable DP 1.2. Disable it. Restart the computer.
Hope this helps

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I recently (November 2018) purchased the following system through Amazon: 
Lenovo ThinkCentre Premium High Performance M91P Desktop Computer, Intel Core i5 Quad-Core Processor 3.1GHz, 8GB RAM, 1TB HDD, Windows 10 Home (Certified Refurbished) (This is the product description from the Amazon website.) 
From the Lenovo support website, their lookup tool gave me the following info specific to my PC:
Serial #: xxxxxxxx
Machine Type Model:  7033A25
According to www.datamemorysystems.com the maximum capacity is 16GB.
And the memory type is: 4 x 4GB DDR3-1333 (PC3-10600)  512x64  CL9  1.5v  240pin  DIMM
I provide this information for the benefit of others who need this info and to see if anyone disagrees before I go out and buy it.
Thanks and good luck,
Here's just a little background info:
(This post is not a complaint.  So far, I'm happy with the PC.  It has a couple of glitches but I expected as much since it's a refurb.)
It actually arrived with 7GB RAM and 2TB HDD.  (I guess they traded off 1GB of RAM for 1TB of HDD?) In my experience you always install RAM in pairs or, at least, even numbers.  There are four slots on this machine filled as follows: 2GB+2GB+2GB+1GB.  Just seems odd.
When I first booted up the machine I was getting memory errors every five or ten minutes.  It was a pop-up window saying something like "Cannot write data to m... Read more

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i so far read Lots on this site
i also updated bios
i have Thinkcentre M91p
new big case
New EVGA 750 Watt G2 powersupply
with Geforce 8800 GT works fine
16 GB Ram
i uninstall driver for video then turn off pc install new PNY RTX 2070 turn on get blank screen i have tryed all
ports on new video card DP,digital,HDMI all computer dose boot but get blank screen??
i put old card back in works or use on board vga works fine
any Ideas?? YES i do Now know Geforce2070 is Not on list of working cards but i didnt read this forum before i bought card. i do see GTX1060 on list, Any idea would be greatly appreasiated ?
Mod:  edited to correct GTX2070 to RTX 2070

A:ThinkCentre M91p: trying Nvidia PNY Geforce RTX 2070, get Blank screen? (works with recased M92p)

That a look at these two threads ..  let us know if any of the suggestions there work: 

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Hello everyone,
I need some help, I have a Lenovo ThinkCentre A55 9636 Desktop, and I need to boot off a CD but when I insert the CD in the CD/DVD-ROM and restart, it won't boot of the CD, it doesn't even give a message at startup to change the boot sequence (like press F2 for boot) or something like that. any help would be greatly appreciated.
Mod:  edited the capitalization in the Subject line


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A:How to change Boot order on a ThinkCentre (BIOS)

did you try changing the boot order in the bios?     Message Edited by vijaysaradhi on 05-18-2009 08:34 AM

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I have a ThinkCentre M83, and won't boot after the installation of the suggested BIOS update (by the Lenovo software).There was no error message during the installation and proceed to reboot by itself. But then, the machine is stuck on the "Lenovo splash screen".Does anyone have any suggestions for restoring the BIOS ?Thanks a lot!

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I was updating the BIOS for my M910x Tiny via system update, the program just started then suddenly some system notification popped up and my mouse wouldn't move, as the BIOS upgrade window under Windows 10 also seemed frozen. I know it was my fault that I didn't wait long enough but just pressed the power button to shut down the machine, so when I power it up again I can only hear repeatedly 2 short beeps and the system couldn't boot anymore.So is there any solution I can fix the BIOS? I've seen the Clear CMOS/Recovery jumper method on other model, but not sure what is the correct procedure on M910x yet. Thanks for any help! 

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Hi,yesterday I updated new BIOS 9SKT99A to ThinkCentre M92p (motherboard is7xm rev. 1.0). BIOS is taken from the official website of Lenovo. The update was made using the program "Flash UEFI BIOS update (Flash from operating system version)" - 9sjy99usa.exe from Windows 7 Pro x64.Now after BIOS update is PC constant reboot. The last picture before rebooting: FW status recovery error. This message hangs 0.5 seconds on the built-in video card, or 2-3 seconds on the external video card (in my case, the NVIDIA GT 730). Only thing I can do is access BIOS setting or choose boot device thru F12 or F1.I did:F9 (reset to default) and CMOS reset - no change, Boot mode UEFI or LEGACY - no change, Boot device (USB/DVD of W7, W8, W10, network boot) - no change, Disconnecting all boot devices - nochange.I need help.Thanks,Dmitriy.

A:Lenovo ThinkCentre M92p. After updating the BIOS from 06/30/2017, the system restarts constantly.

Burn a CD with the BIOS ISO, and follow the procedure for recovering from a failed BIOS update in the HMM.   If unsuccessful, do the same with the previous version of BIOS, which is at the very bottom of your system's BIOS download page. 
Edit:  try the older version first, if that works, then do a regular CD ISO update to the latest. 

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Hi, I updated new BIOS 9SKT99A to ThinkCentre M82 BIOS downloaded from official website of Lenovo.https://pcsupport.lenovo.com/us/en/products/desktops-and-all-in-ones/thinkcentre-m-series-desktops/t... Now after BIOS update the PC boots for a second and turns off. Then the cycle repeats. I believe it's a problem with this version of the BIOS. I have attempted to revert to the pervious version via the Jumper Procedure, but it appears to have been over written. 

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The desktop currently can only access the internet using the hardwired RJ 45 connection, but I would like to add the ability to access the internet wirelessly by installing a wireless card in one of the available PCI express slots. I would like to know what wireless cards are available and compatible with this model. Thank you! 

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Model (Product) #: 10G9000NUSSer #: XXXXXXXX                       Serial number removed per forum rules - modBIOS: M00KT33AUS
I'm a casual, reasonably competent casual operator, not IT professional.
Power-up, "Lenovo" appears. Then one-line msg appears on black screen, words-to-the-effect: "no operating system." Tried depowering, restarting several times. Somewhere in the sequence, instead of "no operating sysstem," a Windows logo (four screens) appears followed by list of options to fix problem. most likely of which seemed to require a complete system restore using restore-to-factory-configuration media. I have restore on a flash drive but have never done it and wanted to avoid doing now.
Cutting power from wall and waiting 30 seconds to restore power resulted in normal boot.
What's going on?
Mod:  added the system type and the specific error msg to the Subject line

A:ThinkCentre: "no operating system" msg and fails to boot.

I cannot be sure without seeing it, but it sounds like your disk might be dying.  First step is to back up all your data.

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bought a ThinkCentre M91p, minus the hard drive. The bios rev is 9HKT43AUS and BOOT block is 9H43AFitted a blank 2TB hard drive, with the intention of loading LINUX mint. My problem is that the system is stillattempting to boot from a non existing LAN. The original specification inculded PXE V2.1 and AMT 7.1How Can I return this Unit to boot normally to the HHD. Will upgrading the Bios Acheive this, or must I alsowork on the Uefi.  Sorry if this seems simple It is causing me a large amount of stress. 

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Hi!I want to install a MSI Radeon RX480 8gb in my M91p, but it doesn't boot. I think the Bios can't hande the card.The newest Bios-Version i found is 9HKT58AUS.Do i have any chance to make the graphic card work?

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Hi, It appears we are many here to encounter problems with the restrictive white list of graphic cards for the ThinkCentre M91p (as well as M91 and M81) Small Form Factors. I have several AMD graphic cars which work straightforward with the M92p but emit no signal with the M91p. Some will argue that ThinkCenter are business machines and hence the restrictive list of graphic cards.But AMD also produces cards for the business segment, which are assumed being reliable.The white list keeps the M91p away from new cards. I upgraded the BIOS to its latest version, but this did not change anything. Is there a way to stop the filtering done by the BIOS or to upgrade the M91p's BIOS to accept new graphic cards ?What about flashing the BIOS for the M92p on a M91p ?I assume it wouldn't work as the marchines are different, but has anyone tried this ?

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updated bios and error persists. on the MB there is a sys_fan header that makes the error go away when used. but the case is too small for another fan in the rear. This fan shouldnt be required on this model. supressing this error should be possible in the bios. this error was not present with oem bios.

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I am trying to install a new SSD into my M91p, but when I press Enter during the boot screen, change the boot order to have only Boot from CD rom, and restart, I get an "Error 1962: no OS found" message.I've checked that the DVD rom is functional by going back to the old HDD and using it. What am I missing?


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A:M91p Won't Boot from CD

I thought it was F12 that was used to prompt the boot sequence?
I thought ENTER was a request to get into the BIOS Setup utility, producing the menu from which F1 gets into the BIOS.
But if you're in the BIOS, you can simply set the "primary boot sequence" to have your CD/DVD drive first, and then your hard drive (or SSD).  You can also put a USB key drive in the front of both.  That's really what you should always have and want anyway, so that you can simply boot from USB or CD if you want merely by inserting one.  Otherwise, the machine will not find them and will just fall into HD/SSD.

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PXE boot for 4518 & 4524 takes repeated attempts before accepting DHCP connections. Is there a BIOS or firmware release that can make network booting reliable?Unlike 8215(M52), 8810(M55), 6072(M57), and 7483(M58), the M91 takes multiple attempts to acquire a network connection and begin download of the image. When the units attempt connection, it drops to the cabling error message, but the ethernet port is displaying a solid orange led and blinking yellow led as if the cable is connected properly and will work fine once the operating system(Windows 7) is loaded. The issue is not effected by boot order or delaying when ?Enter? is press after the option is chosen.

A:M91p PXE boot issue

Ihave the same issue check cable error on boot.I found a way to boo PXEt with m91punplug the cable when you bootpress F12 to show the boot menuthen plug the cableand select to boot to the network card.It is a very strange behaviour.I updated with the last BIOS version available from end of may with the same issue.Lenovo guy's it seems to be a general issue can you check that?!?!?!?!

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After a clean Win 7 or Win 10 image is loaded and all the drivers installed and sucessfull reboots I proceed with the Win updates.  After a Win update and rebot Win will not load.  In Win 10 it goes into a diag routine that does not solve the issue no matter what is selected.  I have found that I can get it to finally boot with a Safe boot and then shutdown power off.  After that it will come up. I have reimaged it five times now tryng Win 7 or Win 10 home and professional and all the same results Thank you for any advice Intel Core i5-2400 Processor(3.10 GHz 6 MB)Memory: 2x 8 GB PC3-10600Hard Drive: 1x 2 TB 7200  

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Hi , I have some Lenovo ThinkCentre M91p dekstops which I try to boot over our network in uefi pxe boot but no luck so far. Our pxe network server is setup to work with uefi only so I set m91p in bios to uefi mode and tryed to boot over pxe but I think network is still in legacy mode, with other type of boot option I have two options to boot ( for example usb flash drive - legacy and uefi boot in submenu to choose in auto bios mode , in uefi bios mode it boot directly in uefi the usb flash drive ) but for the pxe boot its the same in uefi bios option and auto/legacy - connects to network pxe , try to boot and same error for too big size like we get if bios is set to legacy ot cms mode. So my question is it possible to boot in uefi pxe mode this desktop ? Or we will need to change pxe server to allow and working with legacy.Thank you for your answers.

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Hello everyone, I have the m91p and recently upgraded some hardware; ram, cpu, and video card. When I first powered it on, it booted fine and I was able to log in. Now when I try to boot it, I get 3 short beeps, followed by 3 long, and ending with 1 short beep. Does anyone know what this beep sequence means? I tried taking out all the new components and replacing with the old and the beeping still occurs. Could this be the power supply?
Moderator edit:  added system type to title. 

A:M91p - Upgraded hardware, now won't boot (beeping)

Tell me about the memory.  What did you have before?  What do you have now?

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I am having problems with direct booting into Windows 8 installed into a VHDX file.
This is a four-partition UEFI boot on a GPT drive. EFI files are residing on a second partition of disk 0 (the ESP partition) in the EFI folder. The boot virtual disk is residing on the fourth partition of that disk 0.
When I turn on the PC, it shows black screen after the BIOS POST screen. No Windows 8 boot menu, no other information is displayed. However, if I press Shift+F12 (or F12) to start Dell BIOS Boot Menu and choose Windows Boot Manager from the UEFI part of
the boot menu, Windows 8 starts to boot without difficulties.
How do I make Windows to boot automatically without having to select Windows Boot Manager in DELL BIOS boot menu?
I believe I messed up with boot sector somehow... What needs to be fixed provided that Windows 8 will boot into VHDX file?
Thank you.

Well this is the world we live in And these are the hands we're given...

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Dear fellow community members, I have a huge problem with M83 ThinkCentre. We've bought 80 PCs from a retailer in Germany. All very good condition. These PCs are 2014 release. The problem is their BIOS. It was upgradet to 2016 version and the problem we experience is that whenever we put a GPU in any of the 2 included PCIE ports - it starts, but fails to boot. Same thing on all of them. Do you guys have an idea how to downgrade the BIOS?

A:M83 ThinkCentre BIOS downgrade

What is the model number of M83? Tower, SFF, Tiny?What is your current BIOS level?What graphics card are you trying to use?A link to a website showing graphics card would help (Amazon, Alibaba, etc).

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Hi there, I recently bought a Lenovo Thinkcentre E73 SFF, which had Windows 10 installed in it. I decided that I wanted to installed Windows 7 instead of using Windows 10. I decided to go into the BIOS to change the boot priority so that my Windows 7 installation drive had priority over the pre-existing boot drive. In the process, I also recall disabling "Fast Boot", as the PC kept skipping the post screen every time I booted up. It continued to do that even when I was in Windows 10, but I've now got Windows 7 installed, but I cannot find any way to access the BIOS of the motherboard. Can anybody advise on how I'd go about getting into the motherboard BIOS? TLDR - I've installed Windows 7 in place of Windows 10, but I cannot get into the BIOS as the computer is forever skipping the post screen on bootup. Does anybody know about how I'd be able to get into the motherboard BIOS? Thanks in advance!P.S. I wish you all a Merry Christmas!!!

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Hi....... I am hoping that someone may be able to pint me in the right direction.   I have an old IBM Thinkcentre..... I am not sure which exact model it is.  Used to use it in my home office, but moved it out to the entertainment center ages ago and basically use it as a "jukebox" that I have stored all my music into and feed my audio system.  I run nothing else, and it worked fine doing this for years.  Anyway, with a recent update in iTunes, I now am experiencing issues playing back music, as I never have before.   I populated the main board with 4GB of RAM, but when I check in system information...... although it states 4GB installed, it only chows 2.25GB in "total physical memory". I have tried everything I could to increase performance of the resources I have..... disabled what was unnecessary and turned off everything that does not absolutely need to run in the background, but have only improved things a bit.  In doing some research, it was suggested that a  BIOS update "may" allow me to go beyond the RAM limitations of my system.  I figured I would try this out before bagging it and just investing in a new computer. Anyway, I have attached a snapshot of my system configuration.  Can anyone help me find a later version of BIOS?  I have tried searching for it myself, but everything points me back to the Lenovo site, were I cannot find anything.  When I plug in my serial number, it does not find a... Read more

A:looking for bios upgrade for IBM ThinkCentre

You have a ThinkCentre M50-8189. 4GB max memory.https://www.cnet.com/products/lenovo-thinkcentre-m50-8189-p4-2-4-ghz-monitor-none-series/specs/ Due to the way memory was allocated at that time, the top 1GB of memory is RESERVED.Your BIOS is probably up to date. Other users may have more information to offer about the top 1GB of memory. 

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Supported CUP by bios 9QKT39A ( ThinkCentre 71 1578 )I have 2 different sources of information from Lenovo1- https://support.lenovo.com/ca/en/documents/pd0150022- http://www.lenovo.com/shop/emea/content/pdf/desktops/thinkcentre/edge-71/en/EDGE71_DS_EN.pdf? The supported processors are different.??I try to look if the upgrade history of the bios. If it has added compatibility to more processor.?https://support.lenovo.com/ca/en/olddownloads/ds019028?itry to click to Summary of change made in previous update ?but the page goes nowhere?The connection has timed out??I  am looking for the offal, up-to-date info on  supported processors for ThinkCentre 71 1578.?? Thanks, 

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