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johngwilliams3
Posts: 3
Registered: ‎12-23-2008
Location: Shelby
0

CPU upgrade for Thinkpad T40

I have an old T40 Thinkpad. Its the 2373 Model. I was wondering what is the largest CPU upgrade you can get for this laptop. It has the original CPU inside, but I want to upgrade it. Another question, I was doing some research and it says the socket is a 479. Can I put a Intel Core Duo Processor in my T40 that has the same 479 socket. Thank you. If you were wondering, I did upgrade my memory from 512MB to 2GB, and I upgraded my hard drive to a 100GB. Thaks again
lead_org
Posts: 20,895
Topics: 128
Kudos: 1,249
Solutions: 1,341
Registered: ‎12-19-2008
Location: Australia, Melbourne
0

Re: CPU upgrade for Thinkpad T40

T40 have to use Bania series of Pentium M CPU, your T40 won't be able to use Core Duo processors... 
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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artanbori
Posts: 6
Registered: ‎03-07-2009
Location: Glasgow
0

Re: CPU upgrade for Thinkpad T40

what is the highest cpu for thinkpad t40 2737 series please
am trying to repair a t40 - couldnt afford the repair three years ago so swapped out the pentium cpu to another machine - which got stolen
been trying to find out best intel cpu and memory for this without much success

think the memory is set in stone so suppose the cpu is also
would prefer intel as opposed to cpu
thanks for your time
ajkula66
Posts: 7,628
Kudos: 757
Solutions: 800
Registered: ‎11-23-2007
Location: USA
0

Re: CPU upgrade for Thinkpad T40

The fastest CPU that T40 can utilize is Intel SL7V3, which is also known as PM 765, it's a Dothan-core CPU with 2MB L2 cache and 400 Mhz FSB, running at 2.1 Ghz.

 

Maximum memory is 2GB of either PC2100 (DDR 266Mhz) or PC2700 (DDR 333 Mhz) laptop RAM.

 

Good luck.

Cheers,

George




In daily use: R60F, R500F, T61, T410

Collecting dust: T60

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W




Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.
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802.11n
sktn77a
Posts: 385
Registered: ‎04-04-2008
Location: NC, USA
0

Re: CPU upgrade for Thinkpad T40

The 765 is the fastest CPU you can use in your T40.  However, they tend to run hot.  A 1.8 (745) or a 2.0 (755) may be a little cooler and you likely won't notice any difference vs a 2.1.

 

 

Keith
Formerly 600E 2645, T30 2366, X31 2673, T40 2373, T41 2379, T42 2373, T42 2379, T60 1952, T61p 8889, T61p 8891
Currently T420 4177-CTO, T430 2347-A54, T430 2349-L64, T430 2347-UN9, T430 2342-CTR, Ideapad K1, H520S 2561-1LU
ajkula66
Posts: 7,628
Kudos: 757
Solutions: 800
Registered: ‎11-23-2007
Location: USA
0

Re: CPU upgrade for Thinkpad T40

Agreed.

 

PM 745 = Intel SL7EN, 1.8 Ghz

 

PM 755 = Intel SL7EM, 2.0 Ghz.

Cheers,

George




In daily use: R60F, R500F, T61, T410

Collecting dust: T60

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W




Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.
.