Question about Lenovo ThinkPad T61 Notebook

1 Answer

I have a IBM Lenovo ThinkPad T61. My laptop had been having problems with its fan (makes loud noises, overheats, then shuts off). Whenever I reboot (or turn On from Off state), it says "Fan error" on a black screen with 2 beeps, then pause for about 3 seconds, then shuts off with 1 beep (doesn't even load Windows). This is why I usually just put the laptop to sleep rather than turn it off. So, I restarted my laptop because Windows Update required me to, and the fan error problem showed up. I tried pressing random keys like F2, F12, "ThinkVantage", etc, but then somehow my display went totally black. I opened up the laptop, but I'm pretty sure I didn't screw anything up (an experienced friend of mine was with me when I opened it up, but unfortunately he couldn't figure out the problem). I tried to looking up the fan problem, and found out it's a common "BIOS" problem, and you can bypass it by pressing Esc; now I realize why I was pressing all those random keys--I forgot it was the Esc key that did the trick. I'm not even gonna bother to solve the BIOS problem as long as my laptop can run its basic features. But, my display is not showing at all. Any idea what could be wrong with my display? Possibly a loose connection/wiring inside the laptop? Maybe I accidentally disabled the laptop's display by hitting random keys?

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  • xb75 Feb 23, 2009

    The CPU is most likely damaged (and that's why it performs much slower than before, I believe)... I've had this fan problem for more than half a year now.

    No, I did not replace the fan. I've started using an external laptop fan since a few months ago; it stopped the laptop from shutting down automatically (from overheating).



  • xb75 Feb 23, 2009

    I believe the CPU (or some other part of the laptop) may have been partially damaged due to the extreme heat, but I'm almost sure that they're still functional. The display problem occurred a couple of attempts of rebooting after seeing "Fan error".

    I do not plan to replace the fan; the laptop can run on the external fan (underneath). I plan to use this laptop for a couple of more months, if I can get the display to work.



  • Anonymous Mar 12, 2009

    I have the same problem with the LCD going black (with some random strips of white).

    The CPU is not demaged (not in my case), as I can get it to work with an external monitor. It works only in VGA mode.

    I have tried reinstalling Vista from scratch, and in those attempts, the LCD eventually came back on. So I know the LCD is good.

    Unfortunately, after a few hours, it goes black again.
    I think the graphics (NVIDIA) chips fail when the system overheats.

  • Thomas F. Schneider May 11, 2010

    Did you ever replace the defectuive fan? If not the CPU could have been damaged from overheat. 

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  • Master
  • 2,692 Answers

Even if you replace the CPU now, You will still need to replace the defective fan.

Posted on Feb 23, 2009

4 Suggested Answers

  • 324 Answers

SOURCE: Schematic for Lenovo T61

Idon't know of any source for any of the mother boards. Part of this is due to the extreme complexity. I would be happy to even find parts layout and/or block diagrams for these critters but have yet to find any. The best that I can do for you (or me!) is to point you towards a copy of the maintenance manual. Let me know if that will help you.
Thanks!
Ron

Posted on Dec 17, 2008

SOURCE: ThinkPad T40 Vs ThinkPad T61

yes

Posted on Mar 31, 2008

johndoe541
  • 784 Answers

SOURCE: ThinkPad T61 -- At power-up,

The problem with the LCD, or LCD inverters connection. sometimes, rarely, drivers.

Posted on Mar 14, 2011

  • 228 Answers

SOURCE: I'm trying to connect my

Hi,

Question #1. Yes, all laptops has a video card. A laptop will not boot up without a video card.
Question #2. No, your laptop already has a video card.

For some information.
In a laptop, you either have 1 or 2 video cards installed in it. One is the video card that is already bundled with the motherboard (we call it integrated) and the other one is another video card that is attached to the motherboard (we call it dedicated). A dedicated video card is bundled to a laptop for purposes of use, mainly for graphics related businesses (like drawing, animation, gaming etc.).

Hope this helps.

Posted on May 30, 2011

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1 Answer

How do i clean the fan on my lenovo thinkpad?


I would take the screws off of the bottom first. Be careful not to miss any screws, as there may be some under the padding. Remove the bottom cover, and boom. There's the fan waiting to be cleaned. I suggest using a bottle of compressed air.

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I have no sound in my computer bt it shows dat its working all the drivers are updated


Just any Ol' Lenovo Notebook PC motherboard?

K

http://www.ebay.com/itm/Lenovo-ThinkPad-T61-Motherboard-42W7866-Intel-X3100-HD-Graphics-NO-RAM-CPU-/110990625623?pt=Motherboards&hash=item19d78e8b57

If you want the solution to your problem, I need the info off of the bottom of the laptop.

Using Lenovo ThinkPad T61 6458-GW4 as an example;

Lenovo = Manufacturer (IBM)
ThinkPad = Series
T61 = Subseries
6458 = Machine Type
GW4 = Model

http://support.lenovo.com/en_US/guides-and-manuals/default.page?

I will then find the Drivers download page for YOUR Lenovo, and the Audio driver.

Don't care what Device Manager states. Need to reinstall the Audio driver.

Post back in a Comment.
Regards,
joecoolvette

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Fan error on my computer


The CPU fan is faulty and the CPU goes into thermal shutdown.
Replace the faulty fan to fix the problem.

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Check if the system is overheating.

You can try to clean the cooling vents using a can of compressed air or a vacuum cleaner (make sure to turn off the system and disconnect battery and charger before you try this).

If the processor heatsink/fan assembly is clogged with dusts, it can cause this problem.

You need to make sure that the processor heatsink/ fan assembly is clean of any dusts.


The following link will give some idea about how to clean the heat sink

http://www.laptoprepair101.com/laptop/2006/01/04/toshiba-laptop-overheating/

(it is for a different make/ model, but the principles will be same.)


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Make system restore, or better reinstal vista from IBM image file, dont install any updates, go get windows 7 , and get rid out of vista.

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check first the program or operating system.


re instal if needed

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When the laptop is conected to the mains adapter and it shuts down for no reseason and you can boot up again after a period, it would indicate that you could have an overheating problem.
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Start by unplugging the non-essential devices one at a time and rebooting.... after you have found which device is causing you problems... use the install program for the device then shut down... add the device and see how it goes.

Robert

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it is happen when laptop become hot,there is sensor which tell fan to run faster if system is hot.try to get ur laptop in cool place and see.

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