Upgrade t61p from t7300 to t8100

[WakyEggs]

Hi,

I have got a t61p, bought in 2007 with t7300. It is still going strong, however it is getting quite hot some times. That is why I want to change the cpu to t8100, which should run much cooler (t8100 is the coolest cpu for this laptop, right?). The t7300 is already undervolted a lot, but I think the t8100 can run even cooler after undervolt.

However I am not sure whether my motherobard support the t8100 (penryn), because the original t7300 is a merom.

However the motherboard has been replaced 3 times (!) last time in 2010. So I wonder where I can see for sure whether my t61p will fully support the t8100. So where can I find the acutal FRU number of my motherboard?

Any other tips or recommendations to lower the temperature?

[ajkula66]

Welcome to the forum!

FRU number for the board is by the RAM slots, you'll have to remove the palmrest in order to get to it.

If the board is a Merom one, a modded (aka Middleton's) BIOS will be required for a Penryn CPU to operate in it without throwing a thermal sensing error.

As for the temps, ThinkPad Fan Control (free software) is your friend.

[emeraldgirl08]

@ajkula66. How does one determine if it is a Merom board?

[ajkula66]

@ajkula66. How does one determine if it is a Merom board?

By FRU number.

[WakyEggs]

My FRU number appeared to be: 44c3931, which supports penryn cpus according to http://t61.wikispaces.com/

So all is good!