Thinkpads Forum

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so I prepared myself for the need of a copper plate to seal the gap between the GPU and the heatsink, but yet it turned out that mine didn't have one. Not only that, but also the laptop came with thermal paste already put on from the factory ... duh ... so it kinda made my work seem like a wasted time.

but not really. I removed the factory compound, and put the one that I bought for the job - Noctua NT-H1 ... good stuff .. or to be exact - the best in the market Anyways, I put that one, and put a lot to make sure it goes everywhere.

notice that the laptop also has a thermal pad between the heatsink and the keyboard, so it uses the keypad as a heat sink as well .. so I guess Lenovo did everything possible, including the increased speed of the fan with their new BIOS update.

Results - my GPU temperatures dropped by 2 to 3 deg C over the factory thermal paste. Yey . So I guess it was somewhat worth it.

the video card is working at 648/900 (GPU/memory).

the test - gamming on C&C 3 Kane edition, at 1400x1050 with max detail. The performance difference - like a lot . Before the overclock, the GPU went to 75 deg C. After the overclock, it went to 87 deg C, so I lifted the laptop on some stands that I made (about 1/4 inch tall). This dropped the temps to 82 deg C. So finally with the new thermal paste on, it maxes out at 80 deg C while still lifted on the stands.

the laptop used to idle at 50 deg C, and now it idles at about 47 deg C.

However, if you happen to have one of those laptops, you don't have to open it to do all that work just for 2 -3 deg drop.

temperatures and overclocking done by RivaTuner

cheers
Miro

P.S. Did I say that I'm loving this laptop

Moderator edit: No picture warning in subject line = no inline images. Also, please keep image ~50KB unless you post in the "Pictures of your Thinkpad" forum.

nice big pictures.

small update:

GPU works at 650/950 core/memory via RivaTuner (it shows 700/950). I started usint TPFanControl - very nice program that runs the fan on max (4600 rpm, the 64 value) when the temps hit 70 deg C. So my temps never go above 71 deg C now, lol.

I can squeze a bit more from the GPU, but it does pretty good as is now. 3DMark06 score is 2432 at the moment (at 1280x800, though I have standard screen), but I've done even higher scores.

also, I undervolted the CPU to 1.1250 Volts, which helped in the cooling as well - that dropped 10 deg or more when testing with orthos.

anyways, I'm gaming on this laptop and it runs new games with no problem. For most I use 1024x768 with med/high detail, though I play some at 1400x1050 (C&C 3)

cheers

Nice mod!

Thanks for the pictures too!

Also, a little off topic, but do you know where the Intel Turbo Memory goes?

I too have a 14.1" T61p Thinkpad.

Thanks!

My T61 14.1" Standard screen with integrated graphics do not have a thermal pad on the heatsink where it meets the northbbridge, instead it came with thermal paste. I changed to Arctic Cooling MX-2, maybe a shaving of 3-4 C degrees at full load, but im in a worm room.
What is your full load CPU temperature?