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If and when how is graphics card ram cooled on t61?
Posted: Mon Jul 21, 2008 8:05 am
by Thrakath
Hi guys,
got a small question noone in the german TP Forum can answer exactly:
I want to overclock the NV140 a bit and wondered if and how its ram is cooled in the T61. Anyone there who already opened it, removed cooler or board and saw video ram? maybe it´s on the backside of the board...or just somewhere else? on the nv140 chip directly?
i am grateful for any help!
Tobi
ps: i do not want to start a discussion about the pros/cons of OC
Posted: Mon Jul 21, 2008 7:29 pm
by LIVE4SPD
I've torn mine apart once, and the heatsink for the cpu is shared with the gpu. I don't think the memory is cooled at all.
Posted: Tue Jul 22, 2008 2:09 am
by Thrakath
But did u see the Graphic-RAM beside the GPU? We (german TPForum) are not sure if it is not mounted also on the GPU beside the core!
Posted: Wed Jul 23, 2008 10:30 am
by LIVE4SPD
I didn't see the ram but frankly I wasn't looking for it.
Posted: Thu Jul 24, 2008 12:35 pm
by kchung
Personally, I wouldn't even consider overclocking a T61p - these laptops tend to run warm even on moderate load. I've personally worked on several T61ps that have had heat related crashes due to clogged heatsinks and the systems were not even doing CPU or graphics intensive tasks - I shudder to think what overclocking would do.
Posted: Thu Jul 24, 2008 1:50 pm
by Pascal_TTH
DDR chip is aside of the GPU. They are nothing to cool graphic memory chip.
http://www.tt-hardware.com/img/news5/news240708_11.jpg
Posted: Thu Jul 24, 2008 3:31 pm
by Thrakath
thx pascal,
is it from 16:10 or 4:3 display? seems to be different between the models...
Posted: Thu Jul 24, 2008 4:51 pm
by Pascal_TTH
My pleasure. I don't remember witch T61 is on the picture but I have already open my T61p and my T61, it looks the same. There are anything above the graphic memory chips.
Here is what I got with oc T61 and T61p :
ThinkPad T61p : Core 2 Duo T9300, Quadro FX 570m (
3D Mark 06 : 5790), 15.4'' WUXGA LP154WU1, 2GB CL4, Momentus 7200.2 200GB
Thinkpad T61 : Core 2 Tuo T7300, Quadro NVS 140m (
3D Mark 06 : 2928), 14" WXGA+, 2GB, Travelstar 7K200 160GB
Posted: Fri Jul 25, 2008 2:27 am
by Thrakath
Nice overclock,
but both are Widescreen Models!
Do you still know the O/C frequency values?
Posted: Fri Jul 25, 2008 1:54 pm
by Pascal_TTH
Yes, both are wide ones. I found one screen capture I made with the OC freqs :
http://img520.imageshack.us/img520/8891/image1la1.png
Keeping so high frequencies is not a good idea. I just do it for fun before starting to use the laptops for real work.
Inside T61 :
http://img403.imageshack.us/img403/6025/img7085ry3.jpg
Inside T61p :
http://img212.imageshack.us/img212/9969/img7082gu6.jpg
