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Solved: Mobo Power connector

Q: Solved: Mobo Power connector

I've wanted to know the difference in useing ATX power connector and ATX 12V connector. my mobo and psu both support ATX and ATX 12V. standard atx i kow has been around for awhile. so what the difference?

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A: Solved: Mobo Power connector

1.2. Key Changes for ATX12V Version 2.0 and later as Compared with ATX and Pervious Versions of ATX12V Power Supply

This section briefly summarizes the major changes made to this document that now defines ATX12V power supply. With the move to 12V voltage regulators for the processor, ATX guidelines for 5V as main power are no longer provided.

1.2.1. Increased +12 VDC output capability
System components that use 12V are continuing to increase in power. In cases where expected current requirements is greater than 18A a second 12 V rail should be made available. ATX12V power supplies should be designed to accommodate these increased +12 VDC currents.

1.2.2. Minimum Efficiency
Minimum measured efficiency is required to be 70% at full and typical (~50%) load and 60% at light (~20%) load. New recommended guidance has been added to provide direction for future requirements.

2.03 is the current version of the ATX Specification as of this writing. Future references to the ATX Specification in this document imply version 2.03 or later, as applicable. ATX12V Power Supply Design Guide 8

1.2.3. Main Power Connector:
The 2 x 10 main power connector has been replaced by a 2 x 12 connector. This was made to support 75 watt PCI Express*requirements. Pinout assignments are based on the SSI recommendation.

With the added 12V, 5V, and 3.3V pins the need for an Aux Power connector is no longer needed and the guidance for this connector has been removed.

1.2.4. Separate current limit for 12V2 on the 2x2 connector:
The 12V rail on the 2 x 2 power connector should be a separate current limited output to meet the requirements of UL and EN 60950.

Here's the document that may explain it better: http://www.formfactors.org/developer\specs\ATX12V PSDG2.01.pdf

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I've got a Premio mobo. a 212J, that has an unusual board socket for the power supply.
It's a white plastic socket with the internal pins.(2 banks)
A scan of this board can be seen at:

This is probably a real newbie question but I've never seen a power socket like it.
Thanx in advance.

A:mobo power connector???

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Hi, I am tying to sort a PC for a friend. The PSU appears to be fried, so swapped that for a spare one. The spare provides power to the mobo in that the on board LED lights up, AGP powered fan spins up, as does the CPU fan and the case fan. However this is as far as I get, the is no video output. I am wondering if the mobo is fried too. One other thought is that the 20 pin connector on the original PSU contains 20 cables, whereas on newer PSUs there are only 19. Could it be that as the PC was built with a PSU which provided 20 cables into the 20 pin connector that a 20 pin connector fron a newer PSU which only contains 19 cables might not work? Sorry if this is a bit garbled.

A:Mobo power connector

partofthechaos said:

Hi, I am tying to sort a PC for a friend. The PSU appears to be fried, so swapped that for a spare one. The spare provides power to the mobo in that the on board LED lights up, AGP powered fan spins up, as does the CPU fan and the case fan. However this is as far as I get, the is no video output. I am wondering if the mobo is fried too. One other thought is that the 20 pin connector on the original PSU contains 20 cables, whereas on newer PSUs there are only 19. Could it be that as the PC was built with a PSU which provided 20 cables into the 20 pin connector that a 20 pin connector fron a newer PSU which only contains 19 cables might not work? Sorry if this is a bit garbled.Click to expand...

what mobo is it? does it have an additional 4 pin power connector? or an additional 8 pin power connector?

The more specs you can provide the better.

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I think this is a fairly simple question. I got a small power supply for a replacement for a dvr (this is kind of rigged together project to replace some damaged parts) Anyway, I only need the power supply to power 1 hard drive, but I plugged in the power & it doesnt turn turn on, there is no toggle switch to turn it on. There is a 20 pin connector that would normally plug into a motherboard. Are there 2 pins in that connector that I can short so that the power will come on right away when plugged in? Ill attach an image of the connector.

A:Solved: power on pins on power connector

try Pins 13 and 14 I believe

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On my giga-byte mobo, ga7dxr+, there is a white, 3-pin, connector marked "pwr fan" which looks like a fan connector.
Can someone tell me what this is and the correct usage for it?
Been to giga-byte site & looked thru my documentation but have not found explanation.


This rig: Giga-byte GA7DXR+ m/b, Athlon xp2000, 512mb pc2100, WD100gb-8mb [email protected], geforce4-ti4200-8x, Viewsonic PF790, USR 56k v90, SB Audigy Plat, Plextor 24x10x40, Pioneer 16x dvd rom, m/s k/b pro, m/s optical mouse, win98se & $695.00 Biofit ergo exec. chair from my closed to go to mexico workplace. (part of severance pkg hehe)

A:[SOLVED] Power fan connector

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Just setting up a System with the Gigabyte 965p-s3 in a Thermaltake Soprano and have come across a little speed hump, the Motherboard has a 24 pin Atx Power connector where the PSU (stock) has a 20 pin connector im assuming I need to purchase an adaptor to convert to 24 pin is this correct or would it be better to get a new PSU altogether??

A:Solved: 24 pin ATX power connector

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Hi, is the black connector to the right in the first picture a SATA power connector? The reason why I'm asking is because I noticed that molex was printed on the connector, but it looks different then a molex connector. Also, I'm not sure if this would help answer the question or not, but the other end of the cable (featured in second picture) has what looks like a molex connector, which is connected to a device other then the power supply. At least, that's what it looks like, I've looked at the connectors and cables carefully many times.

A:Solved: is this a SATA power connector?

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I currently have an asus P5KPL-VM mobo with a 4 pin power connector for the proccessor. I would like to buy a new asus mobo, and I've found the perfect one for my needs but the processor power connector is an 8 pin setup with a removable plastic cover over 4 of the pins. Am I able to use this mobo with the same processor and power supply with the 4 pin setup, or do I need a new power supply with the 8 pin connector.

A:Solved: motherboard power connector

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I was given this case from a friend (Asus TA881 ATX Mid Tower) as he couldnt sell it on ebay I though what the heck I have a PC where I dont really like the case anyway so I swapped them over..Problem is on this PC I have 2 sata Devices Pioneer DVD burner and WD Sata 2 HDD I thought no problem till I saw the PSU its only 300w with 1 sata power connector normally this wouldnt be a problem just take the PSU from my old case and put it into the new case except that PSU dosnt fit its too big for the case and Im not going to carve the case to make it fit..

I see only 2 options,

1)Get a PSU that fits
2)Get an IDE version Poneer Burner

Maybe #3? Is it possible to get a IDE power connector and convert it to one that suits Sata Devices. ?? Im thinking no but Im not really sure..

Thanks to anyone who can help..

A:Solved: Only 1 Sata Power Connector

Is this all you need?

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The motherboard installation instructions for the Sonata III case talk about a 3-pin connector with blue and black wires to connect to the motherboard's fan connectors (page 2 of the instructions). I cannot find such a connector with wires of these colours. I am using an ASUS P5N-E SLI motherboard. Do I need to be concerned about this power supply 3-pin signal connector?

A:Solved: Power connector on Sonata III case

These conectors will be from your case fans, but I personally prefer to just power the fans using a 4 pin molex connector from the PSU.

Either works. Any more questions or want more info just post back

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I'm looking to add three drives to my system. However, I only have two SATA power connectors.

1. SATA-II 320 GB (OS installed)
2. SATA-II 1TB (Caviar Green WD10EARS)
3. SATA-II 1TB (Caviar Green WD10EARS)

I have enough spare molex connectors. when I connects my third drive using SATA power connector (4 pin) system start hanging/freezing and in worst case my third drive disappeared.

Note: I have changed many sata power connector (molex to sata connector) but the result is the same

PC Specifications
Processor: [Intel(R) Core(TM)2 Duo E8400 @ 3.00GHz
Motherboard: P5E-VM DO
RAM: 2GB (667MB)
Super Drive: disconnected
using built in VGA
PSU:TOWERS power Supply AT-400 watt
what should i do?
Is 3.3V necessary for SATA-II.

My question is why molex to sata connector 3.3v orange cable missing. Lets say if i cut SATA connector (including orange 3.3v cable) from other faulty PSU can i use it for third HDD.
This guy says you can do it.

A:Solved: Adding new WD HDD using SATA Power Connector

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My wife's computer - spec build: MoBo MSI A55M-P33 /N1996 / MS 7786 v.1.0. I found a MoBo description (on internet) which says it has a FDD connection. I think I've looked everywhere but haven't found it. Is it there or not?

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How does one tell if their mobo has a 20 or 24 pin power connector (short of opening up the case and looking)?

EMachines T3508 Desktop

Intel Celeron D Processor 356 3.33GHz
533 MHz FSB | 512 KB L2 Cache
300 watt PSU

A:Mobo And PSU: Connector

You really just need to pop the side of the case off and look, unless you know the brand name and model number of your motherboard and can look it up on the manufacturer's website.

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System Specs:
p4 3.0 prescott core
gigabyte socket 478 mobo
radeon 9800 pro (Sapphire)
dual 1gb rosewill mem. (2x512)
Compusa 500 watt power supply

Well let me start from the beginning. A few weeks ago my computer started to shut off while I was playing counterstrike 1.6. I checked my temps and they were well below the threshhold. Maybe about 65 C. So I figured it might have something to do with the graphics card being that i wasnt getting any problems outside of the game. I uninstalled the driver software and it gave me a couple errors. "Zero Display Service" error. I spoke with a friend and they told me to use nasty file remover, while booted in safe mode, to remove all the files. By this time I had cancelled windows "adding new hardware" thing, and clicked on the updated drivers I had downloaded from ATI. During setup i recieved two errors. One was an "INF Error : display driver not found" then "Setup could not complete, try installing thye standard VGA driver before beginning setup." Well the only other thing I could do was install using the disc that came with my card. This too gave me an the "Zero display Error" but it still completed the installation. This did not fix my computer shutting off problem. After cleaning out my computer and checking all the connections, and disconnecting and reconnecting I finally got the driver installation to not give me an error. I'm not sure how I did it, I used the cd, but for so... Read more

A:Melted 4 pin connector (mobo-ps)

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I bought a Startech hot swap tray for my 5.25 bay and it installed with no problem,but I have a 2pin connector for the LED and I do not know where to plug it in at. Also do I need to plug it in? I have a EVGA 680iLT mobo if that helps. I do not see anything in the mannua.l

A:Plug 2 pin connector on MoBo

Can you provide a picture of the 2pin plug. It would help greatly.

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Hello everyone! Happy New Year!!

I am trying to replace the standard 300 watt power supply in my HP m7350n computer. It looks like I can handle it, except I am worried about the 24 pin connector that attaches to the motherboard (P5LP-LE). I don't want to break anything, and it doesn't want to release when I press on it and try pulling. I am tempted to use a tiny screwdriver, but that feels like a bad move.

Any hints?

The new 430 watt supply has a 20 plus 4 connector. This just attaches like the 24 pin connector but in two parts (right?)

Thanks, Gordon

A:Release 24 pin ATX connector from mobo

Yes just break away the 4 extra pins, using anything you have

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hey all im really desperate with this. so i hope this doesnt be in wrong subforum.

well i recently cant get my computer booting. apparently because of the 4-pin mobo connector. im not sure whether its the mobo part loosen, or the power supply itself.

so after playing with the cables and such, my computer working. but its been twice from just now it freezes, (because of loosen 4-pin mobo).

so im confused, and worried, what to do in order to make the computer stable again? must i check the cable jack or....


A:Mobo 4-pin connector going nuts

The 4-pin CPU power connector is supposed to snap in and lock... Did the locking lever break off, or is the whole connector loose?

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Title says it all pretty much, I'm getting my computer in about 30 or so days and my case has 3 fans on it and my motherboard only has one case fan connector, what can I do besides buying a more expensive motherboard?

Case: http://www.newegg.com/Product/Product.aspx?Item=N82E16811119197

Mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131647

Any help or advice is appreciated, this is my first build so I'm just trying to figure these things out lol.

A:3 fans 1 connector on mobo, what do i do?

The fans on that case look to have the 5 pin molex connectors . . you can use them instaead of the 3 pin motherboard connector

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Im working wth a computer that lost its power supply. Specs are not needed, my question is very general. Helping troubleshoot via telephone.

Bestbuy brand power supply died. Owner replaced it with a Thermaltake PSU. The system shuts off after heavy usage like gaming and stuff.
Visual inspection shows that the 4 pin ATX connector socket on the mobo next to the CPU has some melted plastic inside it, so the new PSU connector doesnt fit snug.
If the connector is held down with tape, it will stay on longer, but eventually shuts off again.

I was wondering if I could clean the plastic off, or just get a 8" 4 pin extension cable, plug the female end into the new PSU, cut off the male end and solder it to the mobo.
I know that I will have to be careful and make sure nothing will short out. Just wondering if that would be a solid fix or not? Thats the only visible damage. Thanks in advance!

A:Burnt 4 pin 12v ATX connector on mobo

Only if you are experienced, and very good at soldering.
There should be a way of using that extension cable by slightly compressing the socket... and I do mean slightly, just to make the fit more firm.
If you have access to a womans power sander or file that many women use to repair and polish their nails, you might be able to clean up the posts in a way that would be helpful.
As you are aware, be very careful to avoid putting pressure on those posts because the motherboard is very fragile and any pressure offers the risk of damaging the contact between those posts and the board, and that will be extremely difficult to fix...

Be sure to use very good lighting and perhaps a magnifying glass to be sure it is not already damaged.

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I have a MSI Z170A Mobo. It comes with an on board RGB connector. I currently have two RGB Fans connected and working properly.

My question is how many more can it handle. I want to expand to 6 fans all RGB connected in series

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Hi guys. I just received a PC a bought online. The motherboard is a "ASUS 1155 P8H61-M". The thing is that I ordered an extra fan apart with the one that comes with the case, and the thing is that this extra fan they gave me has a 3-pin female connector (see first image).
My motherboard only has 1 male 3-pin connector, and its reserved for the cpu fan. It also
has 1 male 4-pin connector but its occupied but the fan that comes with the case...
There is a weird series of 7 pin connectors in which my fan connector would fit, but I'm not sure if those are meant for fans 'cause to those 7-pin connectors my HDMI audio and USB connectors are connected....

My psu has no 3-pin male connectors, just more female 3-pin ones or some weird 4-big pin ones (see second pic).... what should I do?? Is there some kind of attachment I need to buy?

A:can't connect 3-pin fan connector to mobo

sorry not 7-pin connectors.. they have 9 pins

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I have a connector on my mobo for USB 2.0, It lists 2 pairs of pins like
5V, 7-, 7+, GND and 5V, 8-, 8+, GND

Then it shows a single pin at the end of the connector labeled NC.

One my USB from panel connector I have 2 sockets matching the 2 pair of pins on the mobo USB connector. Then there is a single wire in the same bundle from the fron panel USB socket with the 2 connectors that is labeled GND. Does the single wire from teh front panel socket that is labeled GNDgo on the mobo pin labled NC?


A:Pinout label on USB mobo connector

I believe that the label NC stands for No Connection.

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Okay I've searched up and down the web and can't find anything about this connector.

First off this is a 300-watt Compaq PSU from a Presario 7000 Desktop.

This Compaq computer won't power up. When I installed a standard ATX-12 PSU, the green light on the mobo came on but because most ATX-12 PSU's don't come with this very proprietary connector the computer failed to boot up. The CPU fan didn't even twitch. But the mobo green light AND the PWR LED on the front of the case lit up. Neither lights came on with the original Compaq PSU.

This connector is white and labeled "P8" and is a 6-conductor white plug. The overall size is similar to the power connectors you plug into your hard drive and other IDE devices. It looks like an oversized floppy drive connector. The wiring colors are: Red, Orange, Orange, Black, Black, Black.

I've traced the wires and here's where they go to the PSU's circuit board:

Red - connects to the same red lead on the IDE power connectors
Orange - connects to the same orange leads on the main power (mobo) connector
Black - connects to what looks like the PSU's chassis ground.

It looks pretty straight forward and I could probably modify a standard ATX-12 PSU to a Compaq PSU by snipping off this 6-conductor plug and splicing into a generic PSU's standard wiring.

But before I attempt this, is there anyone out there that knows the pin configuration on a standard/g... Read more

A:Compaq PSU 6-pin connector plugs onto Mobo near IDE

This link may be of some use to you possibly.

If not, i have opened up and rewired many psu's.


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I have a hiper modular psu, and the asus A8N-Sli premium mobo, in the antec p180 case, for anyone who has a similar set up (or has just used that case in fact) has probably noticed getting the 12v 4 pin atx connector from the psu (in bottom left hand corner) to the ATX slot (in my case the top left hand corner), is kindof hard unless you have a rather long cable (espesically as with the case layout you have to slide it through pretty much the middle of the case). Anyway this wasnt really a problem for me until I bought a new sound card and the fact that the cable is tought across all my spare pci slots is suddenly rather annoying, basically I either need to extend the original cable, convert a molex into the 4pin 12v ATx cable, or buy a whole new cable thats a bit longer (as the PSU's modular). Feedback on how to do either of these (or which is best) would be greatly appreciated (even just a website to buy the parts from would be great as I can't find one anywere) as having a soundcard sitting on my desk is rather annoying, to think i could be fragging in surround sound

A:4 Pin 12V atx connector to mobo isnt long enough

I'd go with an extenstion since all you need is a little more slack.

Found one at this UK site Maplin.co.uk
I don't know where you're posting from, but there's likely to be a retailer that has a similar item near you.

EDIT: Doh, just noticed they're out of stock.
Lots of extentions here: performance-pcs.com

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Hi, i have a http://www.fic.com.tw/product/motherboard/INTEL/VG33.aspx and i dont know where the case connector plugs go (power on, h.d.d led, speakers) I dont have any manuals or cd's, just the mobo.

A:Need to know where case connector plugs go on new mobo.

Go HERE and download the manual.

Regards Howard

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My motherboard is a model Ms-6330 Ver: 2.1 (Microstar) but it also has the gateway part number 2512595. I am currently relocating this motherboard to a brand new case that I just bought and I ran into a problem. The front panel connectors (power switch, led, hdd led, etc) go onto the motherboard in a certain area where there are 15 pins. Unfortunately I have no idea which connectors connect to which pins. Can someone help me? (Maybe someone with the same motherboard/problem). All I need is a way to identify the pins and make sure I don't like accidently fry my motherboard. Thanks a lot! -Andrew C.

A:Front Panel Connector on Mobo

For starters, have you checked your manual? Also, look on the m/b...in really tiny abbreviated letters you should be able to see where these go (you may see "pw switch"...."HDD ACT"........i know when i was installing my connectors, i got most of them wrong..but dont worry..no frying of the motherboard.....if the connector is in the right place but no light from the LED..try reversing the cable........the easiest cables to place are the pw switch and the reset..as you can test these easily....good luck

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Does anyone know what model or type of adaptor I can purchase for my Dell Inspiron 13-7368 laptop for the power inlet so that I connect onto my external portable power unit (The connection to the power unit is USB)?
I do not have knowledge of how those the Dell power inlet are being classified and I cannot locate the specification for it. The AC Adaptor that I have for the Dell laptop is model HA45NM140. The information maybe on the AC-Adaptor but I do not know what I am looking for in regarding the plug in type for the inlet of the laptop.

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It's been a while since I built a system from scratch and have a... errr... simple question

gfx: Sapphire HD3850 512MB Ultimate (passive)

MB: MSI P35 Neo2 FIR

PSU: Seasonic M12II 500W

The motherboard has a power connector for the graphic card next to the slot.

Is there any reason I should connect the power for the card to the power connector on the board instead of directly to the power supply?

A:Graphic card power to power supply or connector on motherboard?

First time I have ever seen that feature. I like it. I'm thinking that is a neat/easy way to partially eliminate cable clutter from the PSU. Give it a shot, you can always revert to PSU cable if you wish.

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I have just bought a Dell 19.5 V 90 W power supply adapter for a Dell from ebay. The PSU turned up this morning without a power cord. That's annoying enough but when I looked the connector needed is a type I have never seen before. The centre pin is slightly longer and wider than the other two so I assume that is the Earth pin. The centre pin is also offset between the other two. Again I suppose for connecting only 1 way. The two outer pins have a distance of just under 2 cms between them. Please can anyone tell me what type of connector this is. If I can get some info on it then I may be able to get one.

Thank you Terence


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does anyone know or have a good reliable psu (550w or so) with a native 24pin mobo connector. im gonna get this dfi lan party mobo and its highly recommended to have a 24pin and not a 20 with an adapter so ive been looking around but all i can find are the adapter ones and really expensive ones. im looking to drop at most $150. much thanks as always.

also needs to be pcie compatible and sli and sata and other goodies

planning on putting in a evga 7800gtx KO if newegg ever gets it back in stock.

A:good psu with a native 24pin mobo connector

Newegg list of SLI PSU's

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Hi, I researched this board and found two other posts documenting this issue:https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/P51s-sata-ribbon-attachment-FAIL-NO-FIX/...https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile/P51s-sata-HDD-cable-FRU-dislodged/m-p/40... Interestingly enough, this seems to be a problem to at least two other people during the month of March 2018. I have this same problem. My p51s just all of a sudden stopped detecting the storage drive. I opened the case to find that the SATA connector wasn't even connected to the motherboard. The connector that should hold the sata cable is just completely detached. And the piece that was within that connector is out of place as well. Please reference this photo (NOT MY PHOTO -- not taken by me, credit:https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/Upgrade-ThinkPad-T570-from-SATA-HDD-to-M...):  This person's laptop seems to have a strong solder, which I don't believe mine did. Please advise how I can get this repaired, get a new computer, or just give me my money back. I've used Lenovo for ~10 years and have never had problems like this. I need this computer to work.

A:p51s sata mobo connector is broken

+ picture of connector parts, detached

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Hi everyone. Ive just finished plugging my power led, hdd led and pc speaker into my motherboard. The only thing i have to plug in now is the reset switch but i dont know where it goes. Does anyone know where it plugs into? My motherboard is a DCS 370VB.

A:Cant find reset switch connector on mobo.

It shows up nowhere in the manual ? Generally it is quite close to the set of pins to which you plug the HDD led, speaker, etc.

ps. searching for your motherboard on Google doesn't yield much results so I can't seem to find a digital manual for it.

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I'm having a problem with the Karajan audio connector on my new DFI NF4 Ultra D mobo.

I just finished putting together my new PC last night, and I've got Windows loaded and all of that good stuff.

But I'm having some audio problems.

My computer is not even recognizing any sort of audio output device.

The motherboard on-board sound piece is actually a separate piece that you connect to the board.

I have it connected well. I went back and made sure it was on good, and I installed the drivers and such, but I still can't seem to figure out what the problem is.

Karajan makes the audio piece, and I did a bit of Googling and I came across a guy on some other forum who was having the same problem, but he never mentioned how or even if he got it working.

Does anybody have any suggestions?

A:I'm having a problem with the Karajan audio connector on my new DFI NF4 Ulta D mobo.

From here - http://www.nvnews.net/vbulletin/showthread.php?t=67098

"I had a similar problem (no sound output) and the way I fixed it was that I had the front case jumpers connected incorrectly and when I connected them correctly, it fixed the problem."

"I pulled them all off and swapped the front output from Line_Output_Front on the Karajan module to Line_Output and now everything works"

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Hello all I bought an ASUS MOBO Mod # M3A78. I bought it at a Going out of business sale so no take backs. It was sealed in box. I have built computers since... well forever; but this is first! I installed everything fine all new components and green power light came on; but no fans, no post. Checked to see if the system was shorted some way, that was a no! Pulled components one at a time and replaced, including the power supply. Still no go! Called ASUS tech support, found out that warranty was 30 days out of service, even though I just bought the motherboard. They were about as useful with my computer problem as a bag full of roofing hammers! So I bought a new BIOS chip and installed it...still no go! Does anyone have an idea that may be useful? Thank You Joan

A:Solved: NEW ASUS MOBO No power,

You're getting help here: http://forums.techguy.org/hardware/1076449-new-asus-m3a78-motherboard.html Posting multiple threads on the same issue will just confuse the ones trying to help.

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I have been unable to find a motherboard with 24 Power connectors and a PSU with the same number. Can anyone explain this conundrum?

A:Solved: PSU and MoBo Power incompatible

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Have a stock Dell Inspiron 531, Came in first because it would not start. Started right off the bat for me, returned to owner and worked fine. Owner returned to have networking card replaced due to possible lightning strike on phone line. Went to start computer, would not boot.

Ordered power supply tester and a power supply to for good measure.

Installed new unit and tested old one, old one tested good, when installed new on, had same problem.

Ordered replacement mobo, installed same issue.

Testes power bottom. button tests with DC volts and amps, and ohms when button it depressed. So button is good from what I can tell.

Jumped the jumpers with a pair of plyers twice and unit started without an issue. Not such which prongs it touched to get unit to start, and have been unable to get the unit to boot since.
Looked on modo and found the power prongs that control start, took a switch out of a machine that I know to be good and put in this machine and no boot. have attempted to jump the prongs with plyers without any luck.

Tested RAM, HD, and CPU in new Mobo and another unit just to make sure, everything seems to to working fine by itself, just not when everything is put back into origional configuration.

Any ideas or other tests that I could go through.

As an addition note, nothing spins, CPU fan does not spin, PSU fan does not spin. except for the two times that I got the entire machiene to boot.

A:Solved: Power to Mobo, and switch but won't boot.

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Hey guys! My moms PC had an Athlon MP 1600+ on an ECS K7S5A motherboard and though I knew the incompatabilities, I thought I'd try it out. It worked great for a while, but now every time I try to reboot, I have to (in this order): Unplug the power, unplug the monitor, hit the power switch a couple of times, and plug the stuff back in and power it on to get any video. Also, it will lock up randomly while either booting or checking the HDD for errors. I would think that I could just reinstall Winderz, but for the part about the video...


A:[SOLVED] I think I have a dead mobo here (Bad power supply)

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I'm sorry if this is probably one of the longest posts to be posted on their forum, but I need to explain, the more information that I provide the clearer the picture is for everybody to read.

It's true what they say, for every new rig you build, no two are the same and they are unique with their own problems sent to task our brains to the limit. This is build...? I don't know I have lost count over the years it could be 50+ I don't know but I've run into a problem and I need a fresh pair of eyes to look over my trouble shooting and see if there is anything that I have missed. Personally I think I've been sold a duff mobo and I am really p****d, it's not the suppliers fault, they didn't know they had sold me a duff mobo no more than I did not until I installed it along with other hardware. Throughout this build I was waring an anti static wrist strap and was earthed at all times, because all you need is a small spark of static electricity from your body and you an ruin a processor and mobo.

Rig Spec (All the hardware is New)

NZXT Phantom (white) case
ASUS Crosshair Formula Thunderbolt 990FX Chipset
AMD 6-Core Black Edition 3.3GHz (AM3+)
Arctic Cooling Freezer 13
Corsair XMS3 1600GHz DDR3
Sapphire HD 6870 Toxic OC Edition
Sapphire HD 6870 Toxic OD Edition
Seagate Barracuda 500GB SATA3
Seagate Barracuda 500GB SATA3
Seagate Barracuda 1TB SATA3
OCZ ZX Series PSU 80% COLD Certified 1250W 1.25KWClick to expand...
Description of p... Read more

A:Solved: New mobo with power no post or display

The Asus Uk site says you need Bios version 0705 or later to use the FX-6100 Cpu.

There have been 4 Bios versions, 0404, 0506, 0705 and the latest 0813.

So I think you are probably correct and your Bios is too old for that Cpu.
Unfortunately I don't know of any way you can find out what Bios you have now if the PC won't POST.
So I think your plan of buying a cheap compatible Cpu and then flashing the Bios is your best bet.

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ASUS Rampage Formula motherboard
Intel Quad 2 Core CPU
ATI 4870X2 GPU
8GB RAM (2GB x 4)
750 watt PSU

The computer is 6 years old at this age, I built it myself and have only replaced the HDD once a few years ago.
For the past year, the date and time would reset if the PC wall switch is off. Obviously a weak CMOS battery, but I ignored this.

Yesterday it would not power on. The motherboard lights (power and reset) light up, but even pressing the motherboard power button does nothing.

I have reseated all RAM sticks; no effect. I have replaced the CMOS battery (which was a hassle considering I had to remove the GPU first); no effect.

Please help. Thank you in advance.

A:Solved: Desktop does not power on - Mobo lights functional

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EDIT: I think this is my PSU


Is this a dell-specific PSU that has the stupid proprietary connectors?

I have a Dell motherboard that has the crumby disadvantage of being a "Dell Prorpietary" MOBO. I dont know the chipset name but I dont think its gonna matter. I do know however that i CANT use a standard ATX power supply b/c it will fry both the supply, and my MOBO due to the dell proprietary connector.

I want to buy a new graphics card, however I do not have enough power. The card requires 550 watts power but my supply only gives 305 watts. So what I want to know is, can I buy a drive bay power supply and stick in into my computer?

Here is the link!


This power supply has specific connectors that go to the motherboard etc... but if I use them, I will destroy my computer. All I want the supply for is for the graphics card I want, and thats it, nothing more.

So can I hook ***JUST*** the drive bay power supplies PCIE connectors to my video card and have it just power the card? Basically this will leave all the other connectors on the drive bay PSU just sitting in the case unconnected (Including the big one that would normally go to a MOBO.).

If that doesnt work, can I buy this?


It fits my model and design of Dell (E520) and I checked... Read more

A:Solved: Drive Bay Power Supply w/ Dell mobo?

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I just got this intel 845G mobo ... I couldn't get it to power up until I removed the CMOS battery for a few seconds then put it back. Why is that? How do I correct it?

Thank you for your time.

A:Solved: New Mobo must remove CMOS battery to power up

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Somebody, please tell me what this is and what's it used for?

A:What is a 4 pin power connector from power supply?

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Hey I'm new to pc building and my friend suggested me to buy pc parts. Biig mistake lol. SO my problem is that I plug everything in to the mother board, but once I plug the cpu power connector into the mother board and power supply it starts for 5 seconds and then shuts off for a few seconds then comes back on in a loop. I did the 24 pin wire and the cpu wire only and same problem. It only works if the cpu wire isn't plugged in. Any suggestions?

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My CPU's fan has a 4 pin power connector, however, my motherboard has no 4 pin power connector, it only has a 3 pin, any suggestions as to what i can do? Can i still use this 4 pin with the 3 pin or do i need to get a new fan/mother board?

A:3 pin or 4 pin power connector- HELP!

The fan has a four pin power connector which must be looking like the power connector used to plug IDE HDD's or DVD/CD ROM's.
so just use one of those (which comes out from the SMPS)

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Doing a little upgrade to the PC I built almost a year ago. I wanted to try the new Sandy Bridge CPU, so I had to buy a new MOBO. I bought the Intel DP67BGB, it arrived today and I see it has an 8 pin power connector for the CPU. No adapters around town so I ordered one on the net. Anyway, I was told in a computer store today that as long as I wasn't overclocking I could run it with just one 4 pin . Want to make sure that's correct before I start rebuilding. Don't feel like waiting until next week for the adapter., but don't want to damage the CPU either.

BTW, the new CPU is Intel i5 2500, 3.3G.

A:8 pin CPU power connector

To be honest I wouldn't risk it. If too much power is drawn there is a chance that either the PSU, Motherboard, or CPU could be damaged and when you have spent that much on new parts it is worth waiting the extra week to make sure that you don't mess anything up. It may work for a while but in the long term it can't be good for the board/cpu/psu.


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I am attempting to build a server and using a supermicro SC733T-450 case and a asus NRL-LS533 motherboard. When you look at the board on the asus site it shows a 24 pin power connector which is what I need for the server case.

However, I ordered the board from Mwave.com and it only has a 20 pin power connector. The manual shows a 20 pin connector also so why do they show 24 pin on the asus site? Did I get an older board or something? The specs on thier site also show a 24 pin connector http://www.mwave.com/mwave/SpecB/BA19507.html

So I guess I should return the board and get one with a 24 pin connector or could I get an adapter?


A:20 pin vs. 24 pin power connector

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