T-40 fan/over-heating problem

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slee9421 · #1 Post by **slee9421** » Fri Jun 08, 2007 4:18 pm

Hopefully someone can help me. I have a T40. Model # is 23732cu. It is out of warranty. The problem that I am having is the machine will boot and load windows. After a short period of time, the machine will shut down. I beleive it goes into the hibernation mode (power and battery indicator remain on). The thinkpad manual says if the machine over-heats, it will go into hibernation. I can manually shut it down and re-start. Same thing happens only sooner. I replaced the fan. It runs when the machine starts-up. I can also hear it running when the machine is on. It has allways been a good machine. Any help would be greatly appreciated.

Ed

#2 Post by **gator** » Fri Jun 08, 2007 4:25 pm

What fan do you have? Long or the short one?

slee9421 · #3 Post by **slee9421** » Fri Jun 08, 2007 4:34 pm

I have the short one. I also used thermal grease when I replaced it.

#4 Post by **gator** » Fri Jun 08, 2007 5:13 pm

Install Notebook Hardware Control (http://www.pbus-167.com/) or TP FanControl utility (http://sourceforge.net/projects/tp4xfancontrol/)and monitor your CPU/GPU temperatures. See how the temperature rises after you boot the machine and report it here. Maybe we can help looking at the temperatures.

slee9421 · #5 Post by **slee9421** » Fri Jun 08, 2007 8:30 pm

problem is, the machine won't stay on long enough to access and load the program. Is there some way to change a bios setting to prevent the auto-hibernation?

#6 Post by **gator** » Fri Jun 08, 2007 9:42 pm

slee9421 wrote:problem is, the machine won't stay on long enough to access and load the program. Is there some way to change a bios setting to prevent the auto-hibernation?

I don't think so.

Only suggestion I can think right now is to check how things are with a long fan, and be very careful to apply a really thin layer of thermal paste.

XIII · #7 Post by **XIII** » Fri Jun 08, 2007 10:03 pm

You need to take an unused credit card and spread the greese evenly. Detailed instructions can be found in Arctic website.

#8 Post by **Harryc** » Fri Jun 08, 2007 10:06 pm

slee9421 wrote:I have the short one. I also used thermal grease when I replaced it.

Was there a thermal pad on the fan when you replaced it? Did you replace the thermal pad or use a copper shim? If you did neither, the fan is not making contact with the CPU.

agarza · #9 Post by **agarza** » Fri Jun 08, 2007 10:34 pm

T4x does not use thermal pads on the CPU like the T60 GPU heatsink. I believe your problem might be related to some kind of spyware on Windows. If you for example run a Linux Live CD do you still get hibernation/reboots?

slee9421 · #10 Post by **slee9421** » Fri Jun 08, 2007 11:23 pm

Old fan Fan did not have a thermal pad. New one did not either. I thought about spyware or a virus as well. Machine will do the same thing just entering the bios set-up. I have reset the bios to default. I would think that if windows has not booted, the spyware or virus would not load and be able to cause problems.

#11 Post by **Harryc** » Sat Jun 09, 2007 6:57 am

Check the lid switch.

slee9421 · #12 Post by **slee9421** » Sat Jun 09, 2007 9:53 pm

Thanks, I will do so.

Ed

T-40 fan/over-heating problem

T-40 fan/over-heating problem

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