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Yoga 720 13 Power Delivery Requirement

Q: Yoga 720 13 Power Delivery Requirement

Hi All, What is the power delivery requirement (Watts) to charge the Yoga 720 13"? I don't know what wattage the charger that came with the computer provides, but can the computer accept a lower wattage and just charge more slowly? Thanks!

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A: Yoga 720 13 Power Delivery Requirement

Hi mkehoe20,

Welcome to Lenovo Community!

Your system need 45-watt for charging, you can refer this document and check specification.

Please feel free to post in Lenovo Community Forums if you have any further queries!

Tap that kudos button if I helped.
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!


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Hi everybody,

For the last several days, I've been doing a lot of research about whether my power supply can support my graphics card, but I can't seem to find a definate answer. What I have is a 450 watt power supply; it has one single 12v rail that provides 24 amps. My graphics card is a ATI Radeon X1950 Pro PCI-E. It requires a 450 watt power supply and recommends 30 amps on the 12v rail.

When I asked whether my PSU can support my graphics card on other forums, some people tell me it can, but others tell me it can't, so I'm really confused right now. I had my X1950 hooked up and running for 3 days without having any problem, but I took it out today, just to be safe until I can get a definate answer. Although I do notice that my power supply runs cooler without the X1950 hooked up.

But on other forums, I even heard people run this card on a 18 amp 12v rail without any problem and they even have it running on a fully loaded system with 2x HDD, 2x DVD Drive, cooling system, fans and lights. And many people say that 22 amps should be the minimum to this card and 24 amps should be fine. However, there are also people who say that you should follow the manufacturers recommendation and get a minimum 30 amps power supply.

To give you a better idea of my system, here are the specs.
Pentium 4 HT 524 Prescott 3.06 GHZ (84 watt)
Motherboard: ATI RC410 ULI M1573
2 stick of DDR2 Ram 1x 1GB and 1x 512MB
1x Samsung Writemaster DVD RW
1x SATA 250GB Western Digital H... Read more

A:GPU power requirement - Please Help

You could try this:
1. Find a low watt power supply, with a 24 amp rail.
2. Use the PSU as an external power source to power the GPU.

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I'm trying to figure out how many amps at 12v the system I'm building will require, since it seems like the true limit of basically any PSU is the amount of power is supplies on 12v rails. I have a PSU that supplies 17A at 12v and I'm hoping that will be enough. The system is pretty basic:

ASUS M3N78-EM mobo with NVIDIA GeForce 8300 onboard video
AMD Athlon 64 X2 5400+ Brisbane 2.8GHz 65W processor
1 SATA DVD-ROM drive
May add one or two IDE or SATA HDs and a TV tuner card down the road

I'm having trouble finding data on how much these devices will draw from the 12v specifically. The CPU isn't hard, since it draws all its power at 12v: 65W/12v = 5.4A. Let's say 6.5A with imperfect efficiency, though I have no idea at what efficiency I should expect the CPU to operate. But what about the rest? In particular, I expect the onboard video to draw significant power at 12v, but I can't find how much.

Can anyone help? And can anyone suggest a resource for finding this kind of information in the future? When I find power usage information at all, it's usually simply listed in watts, without specifying which rail it's drawn from.

I did find the following two links in thread:


Both seem pretty useful (if a little out of date), but neither site seems to have good information on onboard video.

A:Please help me calculate power requirement

The onboard graphics doesn't draw significant amounts of power. You could say 1-2 A on the 12 V rail. It's quite a lot less than what a better discrete graphics card, let's say Radeon 4350 would draw.
What's the actual model of your power supply? If it's a "Ultra value 500w power supply" then even the underpowered 17 A @ 12V isn't most probably true, rather it's measured as a top peak output at unrealistic circumstances, for example a lot lower ambient temp than what it normally operates at.

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when it comes to power usage im not that up to date i currently have a 250watt power supply that came with a plain jane case , im running a pentium duo core 3.0ghz processor 2 gigs of ram and a 256meg nvidia video card i saw a new case at best buy that came with a 500watt power supply how do i know if that kind of power would be right for what im running, would to much power blow my motherboard ? i was highly advised to up my power supply a friend was amazed my computer was running to begin with.

A:Power requirement question

Power supply problems relate mainly to video graphics. I suggest you get a quality power supply from the list of power supplies on this forum you can find with a search. Certainly 400 or 500 watts is a good choice, if it has steady output.

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Is 450W power supply sufficient for the following ?
Intel Dragontail Peak DP35DPM motherboard
Intel Core 2 Duo E6750 2.66 Mhz
Samsung 2GB DDR2
WD 320GB/7200/16MB SATA II
Nvidia 8400GS 256MB
Vista Home Premium 32
( Samsung 226BW Monitor )
Does the addition of extra fans affect this at all , or is this negligible ?

A:Power Supply Requirement

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My parents' video card is not cutting it. Since I am not going to change the power supply (it's technically not my computer), so I am trying to work with Sony's Generic 300Watt (18A on 2 +12V Rails). I see that on the 7600GS, it has a power requirement of 300Watts. I was just wondering if it is wise to purchase a card that requires the amound of power I have. Thanks for any feedback :wave: ! Happy holidays!

A:Power Requirement for 7600GS?

It'll depend on how much other hardware is in that system, but there is a good chance it will work. No way to be certain until you pop it in, but my guess is, you'll be good.

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Hi,this is for a friend who is interested in buying an AMD A6-3650. The power for the processor is listed as 100w.I want to know what will be the minimum power requirement without any GPU attached.It will be of great help since we wanna cut cost to the most affordable one.

A:AMD A6-3650 power supply requirement

In a standard setup with no-GPU one or two HDDs, one or two ODDs a 300w should be sufficient however I would be hesitant to build any system with less than a 400w and preferably a 500w just because there isn't that much of a price difference and it gives you room for future upgradeability.

For budget PSUs I usually recommend these:
Antec VP-450 = $40 (This is a true budget / low end unit, It is decent for the money but I would recommend the others I listed over it. unless you have a really tight budget)
Antec NEO ECO 400C = $45
Antec NEO ECO 520C = $50
Antec EarthWatts Green EA-430D = $55
FSP Group SAGA+ 500R = $57 (this is good but it is an older model so it doesn't have very many SATA power connectors)
Antec BP550 Plus =$65 (modular if that is important to you)

Almost all of the newer Antecs are made by Delta or Seasonic so they are very good PSUs. Some people recommend the Corsair Builder series in this price range, however the builder series is made by Channel Well Technologies (CWT) which has a less than stellar record and I still don't really trust.

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I have an occasion to use a previously stored Linksys BEFSR41 wired router ......... I find now however that I do not have the power supply adapter ......... does anyone know the correct voltage requirement for this unit as I do have a multi-voltage universal adapter..............

A:Power requirement for Linksys Router

input 120vac 60 hz 15w

output 9vac 1000ma

right from the befsr41 adapter.

good luck.

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As By default, There is no Lenovo Power Manager in Windows 10 in Lenovo G50-70. So I was searching through Web and found this Support Website https://support.lenovo.com/in/en/solutions/ht103535  and https://forums.lenovo.com/t5/Windows-10/Power-Manager-for-Windows-10/td-p/2113645/page/3 which States that Laptop Running Windows 10 (G50-70) Support Dual Mode Battery Firmware. So, Is this Information Right and we should not worry regarding Battery Charging just like we used to Threshold Charging in Windows 8.1 via LENOVO POWER MANAGER. I want clarification over this.


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I have following configuration
Intel DG 965 RY Board
Intel Dual Core 3.2 GHZ processor
Nvidea Quadro FX 580 Graphic card
3 SATA HDD (500 + 500 + 300)
1 SATA DVD Drive
RAM 4 GB (4 chip 1 GB each)
Power supply iBall LPE223-400
I am experiencing frequent automatic restart of the system and sometimes my hard drives got vanished from My Computer.

Can somebody tell me that my SMPS (power Supply) is enough for this configuration?
if not then What is minimum required?

A:SMPS (power supply) requirement for my computer

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I am upgrading my pc using my old ATX case with a new motherboard which is ECS KM400-M2. The cpu is AMD XP 2800+. The pc would work for a few minutes or seconds and then just shutdown by itself.

The day before yesterday, I posted this question in this forum and an expert had provided with some suggestions on this problem: It seems that something wrong with the power supply and the cpu temperature. I definitely appreciated that.

Before I throw more money onto this computer (I really don't like to do so), could somebody help me on this issues:

1. Do I need a more powerful power switch? Right now, I have a 350kw power supply and someone suggest me to buy a 400kw one.

2. I actually bought and installed a new case fan. I connect the pins to the motherboard. However, when the pc is starting, from the BIOS, I couldn't see its speed and the temperature. Is that a problem? What's wrong and Why?

Please help!

Thanks very much in advanced!

A:Power supply requirement for ECS KM400-M2 motherboard: 350kw or 400 kw?

Kilowatt? Thats a PSU with balls! 400-500 watt should be fine. Has anyone told NASA? All this time they've tried to spend millions on glorified supplys fort they're system,s and all they had to do was throw a few hundred bucks towards the lovely people at whoever makes those PSU's

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I just came in to the desktop group about 6 months ago, and a few things we do are a little odd (to me). For instance, we order GeForce 9800 cards for AutoCAD users.

But any way, we always ordered these 9800s with a computer that had a power supply that put out lesser wattage than required. So my question is, for the 9800/GTX 260 (nvidia), will it give a message that the wattage is too low or that it is going to start performing less, or can it cause issues without ever giving such messages?

Can it potentially cause issues with other pieces of hardware?

A:Video card power supply requirement (GTX 260, GeForce 9800)

You won't get a warning message.

Most often what happens is a freeze/crash or a restart.

If you haven't experienced any crashes, then the video card is not being stressed very hard. Normally these crashes occur as soon as you put load on to the card, but if this isn't happening, then a 9800 card is total overkill for your application.

You could probably get by with a 9400 or 9500 for these purposes. Technically, a Quadro from nVidia is really their workstation card, but they are all based off the same chips.

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I've just got Spectre X2 12 which is great for me. For biz trips I want to get some power banks for it. Can anyone tell me supported power delivery specs? Thanks in advance.

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Hello - I am looking to standardize on the new HP Spectre 13-v-21nr at my company.  My question relates to the USB Type-C port and power delivery.  When the Spectre is in UFP mode (Power source, powering an external USB type-C device), which power delivery profiles are supported?   The new USB 3.1 power delivery spec provides the following profiles and I am most interested in understanding which profiles are supported by this new laptop.  The power-delivery spec allows for a maximum voltage of 20 V (4 the previous 5-V spec) and a maximum current of 5 A (more than 3 the previous max of 1.5 A). The power-delivery spec also classifies power sources in terms of profiles:? Profile 1 (Default Startup): 10 W (5 V @ 2 A)? Profile 2: 18 W (5 V @ 2 A -> 12 V @ 1.5A)? Profile 3: 36 W (5V @ 2 A -> 12 V @ 3A)? Profile 4 (Micro B/AB limit): 60 W (5 V @ 2 A -> 20 V @ 3 A)? Profile 5 (Standard B/AB limit): 100 W (5 V @ 2 A -> 20 V @ 5 A) 

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I'm thinking about picking up a USB-C charger for my Lenovo IdeaPad 15".  I see a range of wattage options and I was thinking of going for a 90W charger so that I could bring that with me on the go and leave the Slim Tip at home.  Is there a maximum wattage the Lenovo 720s is willing to accept from the Thunderbolt USB-C port?

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I keep getting tons of email From: Mail Delivery System. Subject: Delivery Status Notification. All emails say : This is an automatically generated Delivery Status Notification.

Delivery to the following recipients was aborted after (different values - mins or hours). and followed by an email address that I have no idea who it belongs to. Does this mean my email has been hacked? I ran a comprehensive Norton Security Suite scan but nothing was detected. What do I do?

A:Mail Delivery System - Delivery Status Notification

by the way, my domain is @comcast.net.

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My Yoga S1 has contradictory, intermittent power issues that I'm trying to chase down. Culprits are bad power bric/cord/plug or power socket on mother board or power board that feeds into power button/led on. One day it blacked out and wouldn't restart to hard drive or windows stage. I did get an error code which I can't remember 5100 or 5500 poss?, that seemed to indicate the power board or ribbons to that needed replacement or re-attachment. So fiddled with it and it did fire up in windows all ok. Then ran out of power and died again. power button wouldn't light up. plugging in power unit did light up led as getting charge. Left it overnight and then it miraculously charged up. pushed power button light up twice then nothing. took out power board/detached ribbon, then it fired up to windows, fixed some hd errors and has been restarting without problems. Except now there is no plug showing on battery icon when plugged in. So not recharging but I'm sure the battery is good. And logically, the power brick and plug must be feeding electricity into laptop to get it to recharge enough to start up. So power socket and plug may be suspect with intermittent contact problems. Or the power board somehow is involved in this? I've ordered a new powerboard as easy screw in and cheap. My question about powerboard is does this control ability of plug to charge battery? power brick with new plug is next order from ebay. but the power socket, which see... Read more

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Hi, since the power of my Y3P with display at max birghtness does not hold very long it would like to build a powerbank for it. Since the Power Adapter is 20V 2A I wonder if I could put 4 x 5V (2A) Power Banks in serial and have 20V and enough amps to fuel the Y3P. I also ordered a cable with the right plug to connect to the Y3P. However it has 3 wires inside. When mesuaring with a meter one is ground and two deliver about 5V. How could that be? How would you wire it to power the Y3P. Does anyone has any idea?PS: I know this is gonna wipe warranty. 

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I have bought two of these laptops. One for myself and another for a family member. While I was updating both of them I noticed that the first one has a  mushy power button. Its not as easy to power on. Is this the same for eveyrone else? Im getting a little worried that this power button would fail too early.

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I usually keep my trusty Yoga 3 Pro laptop beside me with the power cord plugged in at night in sleep mode when I close the lid. This morning when I opened the laptop to turn it on, nothing. Did not start/wake, no power LED either white or amber on side. There has been no trauma - water, dropped, etc - it just decided not to wake up this morning and no power LED is especially troublesome. I have tried to hold the power button in for an extended amount of time to see if it would reset itself, but nothing. My first troubleshooting will be to borrow a friend's known-to-be-working Yoga 3 power charger to see if my charger/power cord is defective/died. I doubt that's the problem, but that's the easy first thing to check. Since I bought the laptop from Lenovo in December 2015, I think the warranty is done, but not sure. (Any comments?) If the friend's charger does not power up the laptop, I plan to open up the laptop (first time for this particular laptop although I've opened up previous Thinkpads and other laptops literally hundreds of times) and disconnect the battery, push the power button for 20 seconds or so and see if there's a discharge that may correct the circuitry. I know I have done this successfully with older laptops. However, I know that Lenovo and other manufacturers are hard-wiring components and making it more difficult to work on. So here's my questions: Will a Yoga 3 Pro power on with a functioning power charger connected and the battery disconnected? I... Read more

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I left my Yoga 2 Pro on the charger overnight, and in the morning, the battery was completely dead. Neither the power nor charging LEDs turn on when I connect the charger. The laptop will not power on at all. The brick on the power cord makes a periodic beep/capacitor whine about once per second. I tried a different power supply. No noises from the second power supply, but nothing happens. (No LEDs, no charging, can't power on). I think maybe the power supply part of the motherboard died?? Any Ideas?

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After shutting down my Yoga 260 it doesn't shut down completely. The FN-Key LEDs indicators are still on, same with the power LED. The fan is still turning when the laptop was hot before the power down.Only way of turning it off is by pressing the power button for multiple seconds.The phone support means its a battery/system board problem and thus a hardware problem. I'm getting a replacement, but i'm not enterely sure its not a driver/software problem.The BIOS logo takes forever to show after boot/reboot, I think this has something to do with the problem too.

A:Can't power down Yoga 260

Hello. Could you try the following?1. uninstall the Intel Management Engine Components2. reset energy profile options to defaults3. cold reboot EDIT: Your problem sound simillar to this thread: https://forums.lenovo.com/t5/forums/v3_1/forumtopicpage/board-id/EN-win10/page/2/thread-id/1698

Current System - Lenovo Y520. Say thanks with a Kudo! If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!

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When I shut down, the white light on the right side of unit stays on and I need to hold the power button down to really shut down.  Also, when I do updates, the computer will not automatically restart when it is suppossed to.  Is there a setting I need to change?

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I have set power management so the display goes off ater 60 minutes but it (and sound) still goes off within a couple of minutes. I don't mind the display going off but I would like to still hear programs and program streams. How do I resolve this issue? What other power changes can I make to help resolve this issue? (I am not on battery power.) Thank you.

A:Yoga 13 Win 8 power management

hi n6neb1,
Welcome to the Lenovo Forums.
Can you try to Disable Sleep and Hibernation Settings under the power options and see if the display or the system still goes off after a couple of minutes.
Let me know your findings

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Worked fine. Powered off. Can't turn on. Power button is lit up but no response. Obviously no battety to take out with this model. What is the PHONE# to directly contact tech service/help? The website will not recognize any of my identifying info, serial #, etc so that is useless - saw others complain of this also..HELP!

A:Lenovo YOGA 900 won't power on

Try 1-877-453-6686 

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A brand new (right out of the box) Lenovo Yoga 910, will not power on or stay unless it is plugged into the charger. It is at 100% charge. Could anyone help me out with this?

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Our Yoga 3 has been lightly used over the past copule of years.  I was working on it not plugged in the other night and it died and turned off.  I plugged it in and went to bed.  The next day it will not power on.  It doesn't seem to be taking a charge anymore.  We have tried intermittently to plug it in and turn it on over the past few weeks with no success. Anything I can do to reset it or help?  It seems unlikely to me that the power cable broke in this instance and seems more like a bug with the system. Thank you.

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The Yoga 3 Pro power adapter looks like a normal USB brick, and the cord looks like USB, except with a kink in the connector at the Yoga 3 Pro end. Can I charge my phone or tablet with it?

A:What's with the Yoga 3 Pro power adapter - it's a ...

Yes the Yoga 3 Pro power adapter is a USB charger too!

How does it work?

The special "fool proof" charging cord has two extra pins on the AC adapter end and two extra pins on the Yoga 3 Pro end. The extra pins only make a connection when the fool proof cord is plugged in to the Lenovo charger and the Yoga 3 Pro. When a regular USB cord is plugged into either the charger or the Yoga 3 Pro, it makes a regular USB connection.

Can I charge the Yoga 3 Pro with any USB charger?

No. The Yoga 3 Pro requires 2A at 20V, which is what the provided 40W Lenovo AC adapter supplies.

Can I charge a USB device with the Yoga 3 Pro AC adapter?

Absolutely. In addition to 2A at 20, the Yoga 3 Pro AC adapter supplies 2A at 5.2V (10.4W), enough to charge a phone or tablet. Works for iPad.

Where can I buy spare AC adapters and cords?

AC adapters with cords are sold in the accessories section of the Lenovo store.

Where do I find the part numbers for the AC adapter and cord?

Look for AC Adapters In the PDF Yoga 3 Pro Hardware Maintenance Manual.

What are the USB specs of the Yoga 3 charging port?

It's a USB 2.0 port. It provides enough power to charge an iPhone, but not enough to charge an iPad. If you want to charge an iPad, try the USB 3.0 port on the right of the Yoga 3 Pro.

The Yoga 3 Pro power cable connectors compared with a regular USB connector:

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We have a series of Yoga 260s with the onelink dock.Our screen lock time is 3 minutes.My issue is that some of these units will drop the network connection at the screen lockout time.  Others will drop that network connection after an hour and others stay on all the time, which is preferred.I have already compared the power setting on the network adapter and such.So there seems to be application power settings and then windows control power settings.Does anyone know how to find which power settings are actually in control and how to set the primary power settings?

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I purchased a refurbished ThinkPad S1 Yoga (20CD-00BYUS) a month ago, from eBay (US-based shop) with guarantee active up to April 2015. Everything was fine and satisfying until yesterday. After a normal shutdown the night before, it won't power on anymore. The battery was still about 50% on the last shut down. If I press the power button (normal press or even more than 5 sec press), the "red i dot" will light for about 4 sec and then off. No noise, no other sound. I tried to push the emergergency reset button as instructed on the manual, but it didn't work.I tried also making bootable USB, but also didn't work.Anyone have idea what I have to do before the ultimate option = send it to the customer service for repair? I read some similar problem in this forum and it seems useful to check the MB cable. Is it true?Will it affect the guarantee? Thank you for your help.


Go to Solution.

A:ThinkPad S1 Yoga won't power on

no. i was the one that provided the MB cable solution. From your description, it does not fit the problem. If the MB cable is disconnected, the led should not even lightup when you press the power button. the laptop should be totally unreponsive, except when the power adapter is unplugged then plugged back in.

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Hi there!Today I bought my new Lenovo Yoga 720. It looks like a perfect device, but now I have a problem.It charging only when it's power off. But when I turn on it, charging stops.Any idea?Thank you!

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Hey! A weird bug appear on my device few days ago maybe after a software update.If i shut down my laptop or if it hibernate, power and novo buttons are useless, i have to plug in the AC cord in order to power on the laptop. The ultrabook need to be on for charging the battery.Battery health is good and last as usual. I try to test few things:uninstall battery in device manager.reinstall energy management driver and Intel management engine interface driver.Bios updated to 1.05 and reset to default.Unplug the battery and hold the power on button ( i found this tips on the net)drain all power and make a full charge.reset Windows power management to default. No effect, i still need AC cord for power on/ wake up. I didn't try yet to reset all the ultrabook with lenovo recovery. For the moment i disable hybernate in Windows 10, Sleep is enable and works great but drain more power. I'am still looking for another solution, the ultra book is still under warranty but maybe this is a software issue Thanks a lot and merry christmas  

A:yoga 710 power on issue

Hi Terratexel  , 
Welcome to the Community Forums.
Those steps that you have tried should be able to resolve a software or configuration issue aside from system restore back to previous working date , uninstalling lenovo setting and companion to check the difference  and lastly factory restore via One Key Recovery (page24). 
Try to notice if the battery indicator (page28) would turn on from amber (low charge) to white without turning on the power to check continuos battery charging connection. This is to isolate systemboard failure and /or other daughter boards. 
Best to have technical support informed of this scenario while the warranty is up. 
Hope this helps answer your query.
Update us how things go.

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My Yoga 11S was working fine and all of a sudden it will not run on battery power. When I first start the PC the Lenovo screen appears and then goes dark. If I plug in the electric cord it works. The battery icon indicates the battery is at 100%.HELP!!!

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If I start up the pc on internal battery then when I connect mains power to the pc (no matter the level left in the battery) when it is on using the battery, the pc freezes until I disconnect power and go back to the internal battery. I have to close the pc entirely to connect to mains power again. But if I start on mains power connected and disconnect to use the internal battery no problem, until I try to reconnect to mains power again. WHY?
Mod's Edit: System model added to front of Subject line to improve visibility / clarity.

A:Yoga 2 13 - power management

Good day and welcome to the community.Please provide more information about your system (model, OS, recent updates, etc), otherwise it will be difficult for the community to assist you. We will also be able to confirm that your post is in the proper forum.Regards.

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is it possible to power this product from a cigarette lighter?  I can't find any adapter products to do it?

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About a year has gone by with my trusty Yoga 910. Now; it's not trusty. It will not start period. Charging light? Null when plugged in. Power Button Pressed? Orange / Red Light flashing at Power Port.Hold the power button for 1 Minute? A White LED lights up by the button every 12 seconds.  Not Cool!  Any ideas how to get this bad boy powered up and on again?


Let's hope this is an easy one and it's just not charging. Try a different AC Power Adapter and/or try your current adapter in a different socket elsewhere in the house (different circuit, if possible). 

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There's a problem with my charger for my Yoga. I have to bend the wire near the USB charger upwards at an angle or else it doesn't charge. I think it's the cord but I want to make sure it's not the computer. I've had a similar problem with my iPhone and it was the charger. Is there anyway to fix it or must I get another cord? 

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 I searched for this problem and read everything I could find related to power problems, but nothing I can find refers to this problem: My Yoga 2 Pro will not power up. If I press the power button, the keyboard backlight flashes on and straight back off, about every 5 seconds. The power light flashes at the same time, but nothing else happens. I can't power down either. If the power supply is connected and I hold the power button in to force a hard power-down nothing happens. If the machine is running on battery and I hold the power button in, the flashing stops but as soon as I touch the power button or plug in the power supply, the flashing starts again. So, I can't power up and I can't power down. I can't find any emergency reset hole on my machine, the bottom of my machine does not look the same as the illustration in the other posts which show this. The screen remains black at all times, so I can't access the machine at all. I live outside the USA, but I bought the machine on a recent trip to Florida, so sending it back is problematic. Any suggestions which might help?

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A:Yoga 2 Pro power up problems

I was experiencing the same problem!Yesterday, I was just dealt with a shop to buy one. I did an unboxing the unit in front of the shop owner. After plug in the charger, I switched the power button on, then it happened!I cancelled the buying, and the shop owner couldn't say anything except sorry...They have only one unit in stock, and promised to get another one by tomorrow, but I don't want to get it.

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Hi, I have a Yoga 2 Pro and started out to lost power suddenly after I disconnect the AC. This never happen before. So everytime I unplug the power, it shutdown. I tried turning it on without the AC in by using only battery and no luck powering it back on. The only time I will have power is the AC have to be plugged in the whole time. I checked the status power light on the side and is ALWAYS blinking orange/red when the AC is plugged in. It is not solid white as previous in the past. I did change out the battery to a new one as well as a different AC adapter with no luck. Problem still occurs. I believe nothing is wrong with the battery as its says charging and at 100%. I don't know what to do at this point because I cannot use my Yoga anywhere without an outlet available.  

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I am experiencing power on problems mainly when the laptop is unplugged from AC running on battery only.I have to press several times (around 30 times) until the laptop boots. I do not know what is the issue.Sometimes also when plugged to AC the laptop takes some time to boot. I am not sure if there is something related to a sleep issue (I do not use too much sleep, I just shutwown most of the times). I use the laptop in my desk with external monitor keyboard and mouse plugged to AC (while in my office) but when I use it on batteries and I try to power it on the issue arises.Any suggestions? Thanks a lotMartn

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Hi everyone, Can anyone suggest power banks that are compatible with the Yoga 3 11? As far as I'm aware it requires a 20V/2A input but also has an unusual modifed USB-A power input. Does this mean that I would need a powerful enough power bank into which I would have to plug the power supply itself, as the modified USB will not fit anything else? Any possible solutions would be appreciated  Thanks, Zed

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It was working fine while I was streaming a video.  The battery got low and I plugged the power adapter in.  Within a few minutes it turned off and now it won't come back on. I have pulled the battery and cmos to see if it needed to fully discharge, but no luck. Does anyone have a suggestion? 

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Yesterday, my laptop suddenly shut up. After that, the battery can not be charged in. The power signal always blink red and the power icon always show 0% available and charged in... Does anyone have any idea about how to fix it?

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A while back I had wireless mouse plug in the right hand USB hub. While in my laptop bag, the plastic piece broke off and the prongs were bent. Since then that hub has not worked. Yesterday I went to plug in my Yoga and accidentally tried to insert it into the same USB hub. Now the laptop will not power on. The charge light is light when plugged in, but it will not power on with or without being plugged in. The light on the power button comes on for about 4 seconds than shuts off. No sounds from the laptop or lights on the keyboard during that time. It is out of warranty by almost a year. Any suggestions? 

A:YOGA 2.13 20344 will not power on.

Hello and welcome,
Have you straightened the pins and made sure they're not touching each other or the socket surround?  This is typical of a power short.

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Hi,I have been pretty happy so far with my THinkpad Yoga 14 /i5/ 1 TB SSD. I put the laptop in sleep mode and later when tried to turn on, there was no response. I tried evrything suggested in this forum1. Basic reset, hold power button for 10, 20, 60 sec2. Opened the back cover, disconnected the battery, pressed power button 10 times and then held down 30 sec. Plugged in battery and power, no luck3. Pressed the emergency reset hole switch on the back cover4. tried multiple power cords (I have 3 Thinkpads)When i plug in power or press power button , no fan, no red LED on Front cover.Can someone please please help me out? This is my main computer and I am in a major jam without this. Thanks in advance.Lenovo Support, sr member, please help me out 

A:Thinkpad Yoga 14 - Does not Power On

Here is an update to the issue. I came across some posts on Best buy Geeksquad and also on this forum (https://forums.lenovo.com/t5/ThinkPad-S-Series-ThinkPad-Yoga/Re-Thinkpad-S3-Yoga-14-Random-shut-offs... ) which says that the SW2 switch may not be getting activated. I tried to locate SW2 switch on my laptop but it seems to be missing. PLs see attached picture. I have marked location of teh switch. In the other forum, i can see a tiny switch in that place.I am not sure if Lenovo remoevd that switch in later models or if the switch is missing on my laptop causing it to stop powering on.  

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