Upgraded CPU!

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ThinkPad · #1 Post by **ThinkPad** » Fri Dec 28, 2007 1:55 pm

Im currently typing from an upgraded 2.1 Ghz CPU, the install was a breeze thanks to the great information available here. The thermal compound application went smoothly.

But I have a quick question. I have the long fan and there was a pink pad over the GPU, I didnt do anything extra to that portion like add Arctic Silver etc.

Is it ok to use the old pad or so I need to replace the pad? Or Add thermal grease to the GPU?

ThinkPad · #2 Post by **ThinkPad** » Fri Dec 28, 2007 2:47 pm

I just found out that its hard to remove thermal grease off your fingers!

sikpupy · #3 Post by **sikpupy** » Fri Dec 28, 2007 6:53 pm

They say not to use a pad with grease. I dont know why that would matter if it was a really thin smear, like whats on your finger, lol.

Cheap stuff is easy to get off. Arctic Silver is another story!

ThinkPad · #4 Post by **ThinkPad** » Fri Dec 28, 2007 9:47 pm

so can I still use the old pad on the GPU

sikpupy · #5 Post by **sikpupy** » Sat Dec 29, 2007 1:54 am

Depends on what kind of pad it is. I personaly have not seen what they look like. There are a few different types out there depending on manufacturer. To be safe, I would scrape it off and just use thermal post. If you can take a decent picture of it and post a link to it, I can see what they look like and tell you.

AdaSch · #6 Post by **AdaSch** » Sat Dec 29, 2007 9:12 am

Hi,

I do some mod my long fan in t43p.

Now i don't hear noise, temp max is 77C.

I ONLY use arctic silver 5 on cpu and gpu.

Source noise from fan is contact between fan and case.

I just modify fan. Now fan don't contact case.

now is silence, and std temp is 43C

br

ThinkPad · #7 Post by **ThinkPad** » Sat Dec 29, 2007 1:52 pm

The GPU is currently running about 5 degrees warmer than the cpu...
The pad is the original one that came with the thinkpad. Its pinkish that connects the heatsink to the GPU, with some black stuff around it. I will try to take a picture of it sometime, this would require removal of the fan etc...

ThinkPad · #8 Post by **ThinkPad** » Sat Dec 29, 2007 3:53 pm

What are average temps for the CPU and GPU? My CPU is currently running at 66C

sikpupy · #9 Post by **sikpupy** » Sun Dec 30, 2007 12:54 am

wow!! I can cook my eggs on that!? Well, being a laptop with a small fan, I would think it would be close to a desktops 34c with some stepping in there, but, it is still right where one would think it would be if it were a regular ol cpu on a teeny tiny heatsink. Still IBM and then should know 66c is a we bit warm and should have asked Intel to do something about it, even if they do run fine at that temp.

42c should be acceptable at word typing, but, is that the norm? Hmmm................

Another question is how tight is the heatsink on the chip to transfer heat? That pad may be .005 thick and making contact. Take away that pad and you have??? I am not sure if it is one of those pads that melt into the cracks and crevices, or, a pad pad. I have seen goo pads that melt, pad pads, thin aluminum sheets and whatever they use on the stock desktop Intel heatsinks. I saw one picture that had a factory heatsink with actual white paste in little dots all shaped in a rectangle to go on top of the Tx cpu.

ThinkPad · #10 Post by **ThinkPad** » Sun Dec 30, 2007 4:47 am

I remember reading that the 2.1 was going to run warmer than the 1.8 but wasnt sure how warm...

sktn77a · #11 Post by **sktn77a** » Tue Jan 01, 2008 8:50 am

The 2.1 will run hotter than a 1.8 when maxed out but I'm not sure it should be any warmer when speedstepped down to 600MHz (or less) under normal operating conditions?

AdaSch · #12 Post by **AdaSch** » Tue Jan 01, 2008 9:59 am

sktn77a wrote:The 2.1 will run hotter than a 1.8 when maxed out but I'm not sure it should be any warmer when speedstepped down to 600MHz (or less) under normal operating conditions?

hotter?

2.1 = 27w
1.8 = 27w

http://processorfinder.intel.com/List.aspx?ProcFam=942

awolfe63 · #13 Post by **awolfe63** » Wed Jan 02, 2008 1:19 am

That is a thermal envelope - it is a specification for cooling designers that may or may not be related to actual power consumption.

Now - given that - I upgraded from a 735 to a 765 on one machine and a 730 to a 780 on another. Both ran slightly cooler with the new processor - I assume due to Arctic 5. I think in practice, the fastest CPUs are sometimes the best process yield and sometime more efficient than the mainstream one. Other times, they are just average chips being pushed harder.

Upgraded CPU!

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