T42p and 2.5G processor

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ttan98 · #1 Post by **ttan98** » Tue Nov 24, 2009 8:39 pm

Hi,

I have a T41( I am a Thinkpad nut) and really likes it and currently bidding for a T42p laptop, many here recommend the T42p because it has an excellent LCD screen.

When I win I like to upgrade the processor to 2.5G at 400Mhz. I believe this would be very fast indeed, esp if I run on Windows 7 with 2 G. Can anyone here confirm this processor will work with T42p? Is is worth upgrading?

Thanks.

#2 Post by **Harryc** » Tue Nov 24, 2009 9:17 pm

The largest CPU compatible with that machine is a Pentium M 765, 2.1GHZ.
http://en.wikipedia.org/wiki/List_of_In ... processors

ttan98 · #3 Post by **ttan98** » Tue Nov 24, 2009 9:24 pm

I saw a 2.5G at 400Mhz on sale at Ebay I assume it will work. Will the 2.1G work with T42p? I assume so.

#4 Post by **Harryc** » Tue Nov 24, 2009 9:27 pm

The largest CPU compatible with that machine is a Pentium M 765, 2.1GHZ. Yes, it will work.

sktn77a · #5 Post by **sktn77a** » Tue Nov 24, 2009 9:38 pm

The 2.1GHz PM765 will work but it runs real hot. A 2.0GHx PM755 might be a better bet.

ttan98 · #6 Post by **ttan98** » Tue Nov 24, 2009 9:43 pm

Thanks chaps, best place to be.

I found the 2.5G at 400Mhz has only 512K cache, refer to this site:

http://cgi.ebay.com/Intel-Mobile-Pentiu ... _830wt_907

ajkula66 · #7 Post by **ajkula66** » Tue Nov 24, 2009 10:23 pm

That's Pentium 4M, not Pentium M (Mobile)...a completely different animal.

mayfew · #8 Post by **mayfew** » Thu Feb 04, 2010 8:10 pm

sktn77a wrote:The 2.1GHz PM765 will work but it runs real hot. A 2.0GHx PM755 might be a better bet.

Do you have any experience with the PM765 in a t40? Would it do okay, heat wise, if I reset the heat sink with some high end thermal compound? Say arctic silver.

Does anyone know what the idle and max load temps for the pentium m 1.5GHz that comes with some t40's

imperialist · #9 Post by **imperialist** » Fri Feb 05, 2010 9:55 am

mayfew wrote:Does anyone know what the idle and max load temps for the pentium m 1.5GHz that comes with some t40's

Unfortunatley there is no such thing as "the idle and max load temps".
It all depends on environmental temperature, rpm, heatsink, and also place where you put your thinkpad.

My pentiumM 1.5 Banias was usually round 42-45° C when placed on a desk with 3000rpm, and idle.

Best regards

mayfew · #10 Post by **mayfew** » Fri Feb 05, 2010 4:36 pm

[quote="imperialist
Unfortunatley there is no such thing as "the idle and max load temps".
It all depends on environmental temperature, rpm, heatsink, and also place where you put your thinkpad.

My pentiumM 1.5 Banias was usually round 42-45° C when placed on a desk with 3000rpm, and idle.

Best regards[/quote]

Thanks for the "idle" temp info, how about when the processor is at 100% load?

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