Lenovo G550, power supply

Hi, i have lenovo G550, when i start laptop, it works good, after 15-20 mins, power supply starts rotating for about one minute, after that , a small pause about 3-5 mins, and starts again, so from this time power supply begin rotating for every 3-4 mins .
I have a program that controls a processor's and hdd's emperature , hdd's temperature moves from 30 - 41 C , never higher, CPU's temperature when arrive 43-44 C , power supply starts working and when temperature of CPU arrive 33 C , power supply stop working (blowing) , so laptop never stop working.
My question is : Is this normal work of laptop, or my laptop isn't OK ???
Sorry for my bad english .

To get to the power jack, you are removing most every screw on the case. Remove the panel above keyboard that houses power button, then there are more screws beneath it. Then you can get to hinges, unscrew them, find another screw at each hinge after hinge is out of the way. Also unfasten the keyboard, but don't rip it out, to find a couple more screws underneath the keyboard. And finally you can take the two halves of the case apart well enough and get in to disconnect the power jack. The DVD drive will slide out, no screws attaching it. The wiring for the power jack goes to a location by the memory where it attaches to the motherboard. I disconnected the cable by the memory and pulled it through easily.
Should take a week for the part to arrive to me. Crossing fingers that the whole trouble is this and nothing else. Found other thread here that talks about securing the jack better: http://forums.lenovo.com/t5/Lenovo-3000-and-Value-line/G550-power-connector-is-this-a-weak-point/td-...
Clearly there is a fault in the design of this laptop model, I think, when many people are having the same fatal issue.
Also, now that I think of it: if you wanted to test if this was the problem for you laptop without the trouble of disassembling everything, you could easily disconnect the power jack by removing the memory cover and unplugging it there; then plug in a replacement power jack (which you'd need to order) and test. If all works, you could then go through the bother of taking everything apart (or finding someone to do it).

Similar Messages

Lenovo G550 Power Jack Broken

Over the last week my G550's power jack has become less and less reliable and eventually stopped charging the laptop at all.
I've seen several discussions about this being a problem but no actual instructions or pictures on how to get access to the motherboard.
Does anyone know anything else about this problem?
Thanks in advance.

To get to the power jack, you are removing most every screw on the case. Remove the panel above keyboard that houses power button, then there are more screws beneath it. Then you can get to hinges, unscrew them, find another screw at each hinge after hinge is out of the way. Also unfasten the keyboard, but don't rip it out, to find a couple more screws underneath the keyboard. And finally you can take the two halves of the case apart well enough and get in to disconnect the power jack. The DVD drive will slide out, no screws attaching it. The wiring for the power jack goes to a location by the memory where it attaches to the motherboard. I disconnected the cable by the memory and pulled it through easily.
Should take a week for the part to arrive to me. Crossing fingers that the whole trouble is this and nothing else. Found other thread here that talks about securing the jack better: http://forums.lenovo.com/t5/Lenovo-3000-and-Value-line/G550-power-connector-is-this-a-weak-point/td-...
Clearly there is a fault in the design of this laptop model, I think, when many people are having the same fatal issue.
Also, now that I think of it: if you wanted to test if this was the problem for you laptop without the trouble of disassembling everything, you could easily disconnect the power jack by removing the memory cover and unplugging it there; then plug in a replacement power jack (which you'd need to order) and test. If all works, you could then go through the bother of taking everything apart (or finding someone to do it).

Disable Lenovo G550 Low Power Beep

I own a Lenovo G550 laptop and although many issues are bareable, the low power beeping is not. I believe it is a setting in the BIOS that controls the annoying noise. In Windows 7, muting the speaker/headphone volume was enough, but in Linux it is not. Is there any BIOS update or settings within the BIOS that I can change to disable this beeping?
BIOS: 18CN33WW (V2.06) (08/21/2009)
As shown by lshw command in Linux.

Unpack the exe package with 7Zip and edit the config file if you have one. Read carefully inside it about flags (for example: make a backup for current BIOS, reboot/halt, erase CMOS).
I'm against BIOS updates under Windows enviroment. So, you can search on Google how to make a BIOS flashing using a pendrive/dvdr under DOS enviroment.
IPnaSh
First Spanish Community Guru - Colaborador ad honorem

Is it possible to change Power Supply unit for Lenovo H420 PC ?

I have 2 questions really as i recently bought this budget system.....I was amazed to see that the PSU was only 280 watts for this systemwhich kind of limits what Graphics card I can upgrade to.
My questions are :
1) is it possible to upgrade the Power Supply unit for the H420 from the default 280 W to say to a 400 W one?
2) If I cannot upgrade the PSU, what is the best performing Graphics Card that I can use in this system? It was pre-installed with a NVIDEA GeForce GT 520, which isn't the best around.
My 6 yr old Dell Dimension 8400 system with Win XP, which i have discarded allowed me to insert NVIDEA GeForce GT 240 card, which i think is a slightly superior card to the above one. Needed a 300 W PSU

Hi RBec and welcome to the community,
Is this your thread over there? If not, it gives a few options concerning the PSU.
Dave
T430u, x301, x200T, x61T, x61, x32, x41T, x40, U160, ThinkPad Tablet 1838-22R, Z500 touch, Yoga Tab 2 Windows 8.1, Yoga Tablet 3 Pro
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Lenovo G550 Windows 7 Professional Upgrade

This Notice refers to 2958-A5U and 2958-A4U models of the Lenovo G550 notebook PC’s only.
The 2958-A5U and 2958-A4U G550 systems ship preloaded with Windows XP Professional, and include a Windows 7 Professional upgrade disk.
Issue: When upgrading from Windows XP Professional to Windows 7, some users have been unable to successfully complete the upgrade.  The most commonly reported failure point is when the customer is asked to insert a Certificate of Authenticity (COA) key. The Microsoft Upgrade process for Win XP to Win7 requires the upgrade to be executed from a ‘cold boot’. If the Windows 7 DVD is inserted while the system is running, the installation process will auto run. However, at the end of the installation process, the system will ask for a 25-key Certificate of Authenticity (COA). The Win7 upgrade process will not successfully finish the installation using this method. The installation DVD must be inserted while the machine is powered off and not running.
When upgrading from Windows XP Professional to Windows 7, Microsoft advises that this process be done via a custom ‘clean’ installation.  Per Microsoft.com; "A custom (clean) installation erases the contents of your PC's hard drive. Your files, settings, and programs will not be transferred to Windows 7".  The clean install will remove any pre-loaded software applications, including VeriFace, One Key Recovery, and other applications that were installed by Lenovo or the user.
Customers should review the following information prior to performing the Windows 7 Professional upgrade.
The Windows 7 installation procedure provides a clean installation of Windows 7 Professional edition. During this process, all contents of the C: drive including all applications, files, programs and user data will be archived in the Windows.old folder.  The data should be available for access, but the applications and programs will not run, and Windows 7 appropriate versions will need to be installed. Lenovo STRONGLY recommends that external backups or all user data are made prior to initiating the upgrade in order to prevent permanent data loss.
Correct Windows 7 Upgrade Procedure:
1) Power off system
2) Insert Windows 7 disk in the DVD drive
3) Power on system and press F12 to access the boot order menu
4) Select the option to start from the DVD / Optical drive
5) Follow the on screen directions as Windows 7 installs
6) Remove the DVD at the end of the process and reboot to Windows 7
Windows 7 has native drivers that will fully support most of the hardware on Lenovo G550 systems.  In order to maximize the functionality of the Trackpad and the Power Management system, the appropriate Lenovo drivers must be installed. The most current Lenovo Windows 7 drivers and applications are available for download here. Please check this site periodically for updates.
Recovering to Windows XP by using One Key Recovery:
The One Key Recovery feature can restore the factory XP downgrade preload at any time, but will erase all other data.
Important: All user data should be saved prior to implementing the following procedure
      1) Power off the system
2) Press the recovery button (small round button next to the power button)
3) System will start and OKR (one key recovery) application will load
4) Select System Recovery from the menu
5) Select option to Restore to factory default
6) Click “Start” button to recover your system partition
Cheers and regards,
• » νιנαｿѕαяα∂нι ѕαмανє∂αм ™ « •
●๋•کáŕádhí'ک díáŕý ツ
I am a volunteer here. I don't work for Lenovo

eaeditor wrote:
Now I just started the laptop up , clicked next when I was prompted for the product key and windows 7 ultimate 32 bit pro starts up...ofcourse I still need to authorize...the serial at the buttom is still a no go
Error message displayed: the product key will not work with this version of windows 7 and I need to reinstall or get a serial for windows 7 professional .
The recovery disk set is supposed to have an SLP key embedded, so that you do not need to activate it, as long as the disk set matches the OS version that is nominated on the COA attached to the laptop.
If it really does say "windows 7 ultimate", then there is something odd going on. Can you please double check that it says "ulitimate"?
With Windows 7 licening issues and keys, the terminology needs to be quite exact to get to the best answer for you!
Cheers,
Bill
I don't work for Lenovo

Problem with NEW H520 when installed new power supply & graphic card. Please help!

My H520 was working perfectly and was running FAST..especially when rebooting. ( It was AWESOME! )Then I installed a new power supply (Coolmax 400w) and a new graphic card (Sapphire Radeon HD6450) and then everything changed. Now my computer is booting very SLOWLY and all the programs are taking a long time to load too. I was getting a black screen for almost a full 2 minutes before the windows 8.0 screen would finally load up and then it hangs there for a few seconds and finally goes to the start screen in windows. But BEFORE I installed this new hardware, when I would reboot, I would see the Lenovo splash screen come up for a few short seconds and then it instantly went to the windows welcome screen. And even then I would barely have enough time to see the welcome screen before it instantly loaded into the windows start screen. Everything would load up fast on the desktop too and we'd be good to go. It all took about 30 SECONDS.
But now? It takes MINUTES to get everything going. After it FINALLY loads up (it takes almost 2 full minutes now!), everything hangs up. When you first click on the desktop, it takes a few seconds for all of the icons to pop up. Before I loaded the new hardware, everything loaded up instantly. I didn't even see the icons load because they were already there. But now I have to wait for them to load up before I can even see them. And it's like that with every program and web browser I try to use now. Everything hangs up at first and then finally loads. The programs work but they are sluggish.
So I uninstalled the new power supply and put back in the original 280w power supply and I took out the graphic card but it did no change. The machine is STILL running slow on everything it does and booting very slowly.
I have seen this problem mentioned elsewhere about Lenovo computers but there is never a solution. Please help! It took me a long time to save up for this computer and I have been babying it ever since. I will never be able to afford a new one or pay for tech repair. I need to fix this! I was so thrilled with this computer before the hardware upgrade. This is devastating to me that it is working so poorly now when all I was trying to do was upgrade it a little bit.    Now it's performing horribly and it's only 6 months old.
I ran a four hour test on the hard drive and it is fine. I ran all the system clean ups, optimizations, registry cleanups, windows disk cleaner, defragger and virus scans. Nothing is showing up as not working but there is CLEARLY a problem. It was never this slow.   And why is it STILL acting this slow even after I uninstalled all of the new hardware that made it start acting this way and went back to the original setup?
I'm trying to run a memory test on it now but the BIOS will NOT allow me to select another drive to boot from so I can't boot from the flash drive or CD drive to run the memory test. I have NO IDEA what to do next and I am starting to pull my hair out in frustration.
Please, is there anything that can be done to make it better again?
Any help would be HUGELY appreciated. Thank you!
Sincerely,
Jennifer

I totally give up!! I restored everything to the ORIGINAL state with drivers AND hardware and STILL everything is not working properly like it was BEFORE the upgrade.
So this has been the WORST experience with Tech support EVER!! I have spent DAYS on the phone for HOURS with these technicians and nobody seems to know what they are doing. They put me on hold every 10 minutes and are gone for 10 to 15 minutes and when they come back, they seem all set on a new solution but when you ask them questions about it, they have NO CLUE how to answer and then they put you on hold again. Nothing gets solved and after HOURS on the phone, I just tell them to stop because we are getting no where but running around in circles that make no sense. THIS A NIGHTMARE!!
So I totally gave up on being able to upgrade this machine. To any future buyers, I STRONGLY recommend you do all upgrading BEFORE you get it home for the first time. Make sure you have your power supply and graphic card INCLUDED before you bring it home or you're mostly likely going to have a NIGHTMARE upgrading it later.    Technical support is a HORROR STORY and expect to be WAITING for LOOOOONNNNG periods of time both ON THE PHONE and ONLINE and probably ending up with NO SOLUTION in the end.
I've VERY upset with how this turned out!! I'm just gonna have to deal with the fact that my computer is permenantly messed up and NOBODY AT LENOVO knows how to fix it. So I'm stuck.
I decided to send back the new power supply and the new graphic card because of this nightmare with tech support. I put everything back to the way it was when I bought the computer and it is STILL acting up!! I just want to revert it back to factory settings .. INCLUDING THE BIOS... but Lenovo said I have to send the WHOLE computer back to them to do that. All I can do from home is restore from a point in the hard drive and that's not enough. I need a TOTAL CLEAN INSTALL. Everything needs to be wiped out and reset, not just restored to a previous restore point. I've done this multiple times and all it does is erase all the programs and stuff I put on the computer. The drivers and other codes are still the same. And then bugs come up and things get all wonky. I NEVER HAD THIS PROBLEM BEFORE I TRIED TO UPGRADE IT!!
I am NOT comfortable with Lenovo's "solution". I do NOT want to send my computer back to them for them to reset it with factory disks ESPECIALLY when they stated that they are NOT responsible for any damage in transport or otherwise. I have to buy extra packaging to make sure it gets there safely. They told me to use the original box and packaging, that is the only way they can be sure it will get there safe. Who has the original stuffing SIX MONTHS LATER?!?! I don't want to be sending my computer across the country to get jostled all over the place and have that add to the slowness of the hardware because it was jostled.
Can't I reset it from home? Can they not send ME the disks instead of me sending my whole computer to them?
I'm so incredibly frustrated with this. I hope somebody answers quickly and that I don't have to wait DAYS to get a response again.
I absolutely LOVED my Lenovo computer! And then I tried to upgrade it. BIG MISTAKE!! Now everything is totally messed up and Lenovo's customer support for technical problems is HORRID!!
Somebody please help. This is driving me crazy with frustration and totally breaking my heart. It took me a VERY long time to save up for this computer and it was my most loved possession. It was a reward for a lot of hard times and now it's all broken and acting slow. And it's only 6 months old.
Is there a solution to this very frustrating problem?
I just want it to go back to the way it was before.
And is there a very low cost KNOWN TO WORK WITH THIS MACHINE upgraded graphic card and power supply? Is there a very specific brand and make? If so, could you let me know what it is in case I try to upgrade it again someday?
Thank you for your time and for reading this!
Please have a FANTASTIC day today!!
~Jennifer~

G580- Screen blacks out when power supply is not plugged in to the laptop

My laptop is just 3 months old and I am already having problems with it.
The laptop screen blacks out when i remove the power supply from it.
When plugged in , it starts workin again.
Whats the point of a laptop if i am not able to use it without plugging in??
I don kno what the probelm is. Can anyone help here pls...
Cheers
Vaish

Hi Vaish,
I’d like to help you with this issue as we can try to increase the Brightness of the screen from the power options while plugged in,
And then please if still the same we can try to uninstall the Lenovo Energy management and reinstall it back:
Lenovo Energy Management for Microsoft Windows 8
Lenovo Energy Management for Microsoft Windows 7
Hope the information helps. Let us know.
Regards
Soha
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M78 power supply replacement

Hi,
I need to replace one of my business' desktop PCs and I'm thinking about getting a an M78 (2111C3U) model.
I read online where the power supply has a proprietary connector, so I was wondering if anyone has the part number or knows what a replacement will cost.
My reason for asking is that I had a Dell lap top once with a proprietary power supply that went bad. It turned out to be a very common problem that even caused a few fires. Dell would not work with us for a reasonable solution (lap top was out of warranty) so I'd like to know in advance what I'm getting into if I go with this power supply.
My bad experience with Dell was 6 PCs ago. As result, I've been Dell "problem-free" for a while now and I've really enjoyed it.
thanks

The hardware maintenance manual may be of help to you:
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/thinkcentre_pdf/m78_hmm.pdf
From what I've seen, Lenovo business-focused systems, the ThinkCenter, are more reliable than the average consumer system.

Looking to upgrade the video card and power supply in the K330

Hello, I'm looking to upgrade the power supply and video card in the Lenovo IdeaCentre K330 but I need to know if these parts will be accepted by the mobo.
Here's the card name (no link, don't know if theres a restriction to off site links) ASUS 2GB GDDR5 DIGI+ VRM technology Graphics Cards HD7770-2GD5
The power supply name follows: Xion High Performance 1000 Watt ATX Power Supply XON-1000P14F
Thanks for reading, and extra thanks for a good reply

Thanks for replying, I have looked into other PSU's and came up with this: XFX PRO750W Core Edition 80+ Bronze ATX 750 Energy Star Certified Power Supply
Feedback? And main question is, will they both (video card and PSU) be compatible with the motherboard that come standard in the K330?
I don't really have a need for the front panel except the power, and backontrack buttons.
Also, the reason why I'm getting a high wattage PSU is because I might later decide to build my own PC with the upgraded parts, and put the old parts back into the K330

Adding third party video card to P700 - no power connectors? New Power Supply Question...

Hello,
I have a new P700 30A90012US with a 650W PSU and that didn't come with a video card. I am planning to use it as a DAW and for occasional gaming via a dual boot.
I wanted to put in a third party video card like a nVidea 970 but there aren't ANY connectors for video cards that I can find inside. The monitor I have is a 3440x1440 monitor. I have ordered a second 2609 Processor and RAM from Lenovo and have the following questions:
Once I install the second processor, how much wattage for a video card is available to me?
I understand that the 3rd party video card isn't supported but how do I attach power to it?
If it is required that I have to replace the 650 power supply with an 850, does it come with the required cable? I only see a 4 pin connector on the mobo that is unused (and I believe it is for additional hdd)
I tried searching but I am at a loss.
Thanks,

Your config isn't really power hungry (and the 85W CPUs help a lot). Though technically outside of the official spec, I think you could easily go to a 225W card for graphics if you had the connectors available to support it. I'll double check the current when I get a chance, but it's probably really low risk if you want to convert your single 6-pin connector to dual 6-pin or a single 8-pin (via a dongle) to get to 225W TDP if you wanted to.
The PSU design is very modular, but unfortunately it's the aux power cable drops that kept it from being an easy field upgradable part. I always recommend that people buy the larger PSU if they ever think they'll be doing any upgrades in the future just to make sure they are covered.
And like I said if you're comfortable working inside the system, it's not impossible to upgrade that cable drop on your own if you want to go up to the 850W. You'd have to get the cable and PSU, but after that it would require removing the motherboard and PSU, cutting some cable ties and routing the new cable, then getting everything routed correctly such that the motherboard reinstalls cleanly.

Lenovo G550 puking rainbow colors in the middle of the screen

Okay, so as the title says -- and, yes, I am serious -- the screen of my sister's Lenovo G550 has vertical stirps of colors grouped in the middle of the screen. the background is somewhat similar to the background color of the usualy Windows 7 start-up. But what scared me when I saw it was the fact that upon pressing the power button, the lenovo start-up screen did not show instead it just looked like an old tv closing down. The thing is, it was fine yesterday when my sister was using it. Then all of a sudden when she opened it this morning, the screen showed that. If it were degenerative, then I guess it might take a while and not so sudden right?
Please, if anyone can help, please reply to this thread the soonest you can.
Thank you. (:

It doesn't. My sister gave me additional information: When she opened it this morning, it was fine then the screen turned white that's when the problem started. A while ago, we removed the battery pack and let it stand for a while. Suddenly, we saw a hazy picture of my sister's screen before it all went crazy. I really don't know what happened. It shouldn't just go crazy without a reason right? I mean, if the lcd were to fail, it would not fail suddenly but instead it would fail over time (my brother's lcd -- same laptop -- has white horizontal streaks on the screen).
Edit: Just tried on an external LCD and it works. It just doesn't work on her laptop's LCD. Do you know why it suddenly konked out?

Lenovo G550 doesnt turn on Please help :'(

Hey, its been couple of months since my Lenovo G550 is not at service. It happened in a bad day ofcourse... I was playing some game in it, there was no display in the Laptop because I set my Desktop monitor as the main display.
So suddenly the power goes out... I had charger attached though. Then it died... and now it doesnt turn on... no sounds... no display... just the four lights at the bottom... Also there are no lights in the "sound" place on the corner...
Some1 please tell me what the problem is... :'(
Oh also... when I attach the charger in it... it does a loud 'beep' noise.

I have this problem too, I've tried everything on the apple website and on forums on the internet, nothing works. I've uninstalled and re-installed all apple software on my computer, I've used every USB port there is on my computer, I've used both USB cords I have, I've restarted my computer many times, I've turned my ipod off and on again. Nothing works!

Lenovo G550 does not charge properly.

Well, hello everyone.
I have been experiencing a problem with my Lenovo G550 lately. It doesn't charge properly and at most cases, I have to charge it when it's turned off. When I start up my laptop and as soon as I get to the Windows login screen (or not even up to the loading screen), the power LED starts to blink. I log in to see the laptop not charging. I have tried everything you'd usually do such as, turning the laptop off and on after awhile, removing the battery and putting it in after a few minutes or maybe even an hour, check the charger, take the charger in and out of the laptop and even letting the laptop rest for awhile without the charger or battery in. Sometimes even after all that, it seems like it still doesn't charge. Sometimes it does charge when turned on, although, only charges for a few minutes and stops charging. Even when switched off, sometimes, it doesn't charge properly either.
If you know anything that would fix this, a suggestion or if you know why I'm having this problem, please reply to this.
Ah, silly little computer.
[email protected]
http://youtube.com/xXShadowKillSonicXx
Solved!
Go to Solution.

I have a friends laptop hoping to fix a common issue (or as I thought) of a broken power adapter socket. Without the battery in place when you plug the ac adapter in you get no lights and when you press the power button nothing happens.
Upon disassembly and also with the use of the internet I found that Lenovo actually has a nice setup where the yellow socket is removable retained by a single screw, with a pigtail and plug for the main board. So I pin tested the plug using an ohm meter and it tested good. Then I reattached the plug to the motherboard and tested it using the ac adapter and got 20V between both blue and black terminals. Then flipped the board over and I got the same results on the pins on the back of the board so power is getting to the solder points. But that is where the trail went cold.
Anyone have any ideas? I won't recommend her to buy a new motherboard at this point of even go to the expense of having it checked out which would exceed the value of this unit.
I am thinking there is a voltage regulator somewhere in between the battery and the mainboard power that might be the cause but that is above my electronic prowess.
One thing I can say is if this is not a simple fix I will guide her to look to another brand for a replacement. I have it stripped down to the mainboard and tempted to reassemble it to see if it really does charge the battery but just doesn't let you know via the charge lamp. I do know it won't run without the battery pack which has a little power left but saving it for now.
Can anyone help?
Thanks,
Steve

Lenovo G550 AC disables when battery is connected

I am having an odd issue with my lenovo G550. When I have the battery connected it will charge for a few seconds and then the AC will disconnect. I have tried discharging, then rebooting with just the AC and that works fine. It will not boot with the battery even though there is some power in the battery and it will boot with the battery and AC. I had tried getting another battery as well, but the same issue happend. Any ideas?

Hi n2gaby,
Am sorry to hear about the issue that you’re facing and I’d like to provide you with the contact numbers for the service support:
United States
IDEA-branded and
B, C, E, G, H, K, N, Q, V, Y Series Products
1-877-4 Lenovo
(1-877-453-6686)
24 hours a day
7 days a week
Hope the information helps. Let us know.
Regards
Soha
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Lenovo G550 Keyboard not Working.... Can't log in to the system...

Hi, I am using Lenovo G550 Model. Yesterday, I started facing this problem. When I tried to login, none of the keys worked. When I pressed Backspace, it started typing something. I tried to use on screen keyboard, which did not help either. Same problem persists with on screen keyboard as well. I, even, tried using an USB external keyboard & the same problem is there too. Kindly help me!!!

hi Avikiru,
Welcome to Lenovo Community Forums!
Can you try,
Remove the AC and the Battery
Hold the Power Button down for at least 15 sec.
Reconnect just the AC and see if that'll work
If not You can contact a Lenovo Support Team or a Local Technician to have the Keyboard connection checked.
Regards
Solid Cruver
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Lenovo G550, power supply

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