Thinkpad 600 CPU upgrade

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DaveRW · #1 Post by **DaveRW** » Thu Nov 03, 2005 3:50 am

I have a Thinkpad 600, not 600E or 600X, which has a Pentium 233 MMX processor, what can it be upgraded to?

The system is 2645-21U.

I am thinking I could use an INTEL PII 400-Mhz MMC-1 chip, pretty sure it would work if the original was a PII 266 or 300, don't know if it would work with the original being a P233MMX only.

Thanks.

#2 Post by **GomJabbar** » Thu Nov 03, 2005 6:23 am

The Hardware Maintenance Manual shows the following CPU cards available for the Model 600.

CPU Card (MMX 233 MHz) 12J0408
CPU Card (Pentium II 233 MHz) 10L0888
CPU Card (Pentium II 266 MHz) 10L0887
CPU Card (Pentium II 300 MHz) 10L1020

DaveRW · #3 Post by **DaveRW** » Thu Nov 03, 2005 3:38 pm

Thanks for the reply.

I have searched the forum and I think I have seen several other posts mentioning upgrading to a faster CPU, with a 400 MHz being the fastest, as long as it is a MMC-1 chip, but the ones I have read are all starting with a PII of some type, not a P233MMX.

If the best I can do is a PII 300 MHz I will use it, just thought if I was going to take the time and effort to upgrade the CPU I should use the best possible chip the first time.

Dave

#4 Post by **GomJabbar** » Thu Nov 03, 2005 6:22 pm

I really don't know if you can upgrade higher than 300 Mhz or not. Look through the Sticky for "The official 600 Upgrade and general information Topic". You can also use the Search button at the top of the page and maybe find something more on this.

serverbook · #5 Post by **serverbook** » Tue Jan 03, 2006 11:39 am

p2 300,333,366 mmc1 cpu all a ok on tp 600.

pcnoob · #6 Post by **pcnoob** » Tue Jan 03, 2006 5:39 pm

Is there a tweak on the TP600's motherboard that would allow overclocking the cpu?

skygodtj · #7 Post by **skygodtj** » Thu Jan 05, 2006 11:12 pm

DaveRW wrote:I have a Thinkpad 600, not 600E or 600X, which has a Pentium 233 MMX processor, what can it be upgraded to?

The system is 2645-21U.

I am thinking I could use an INTEL PII 400-Mhz MMC-1 chip, pretty sure it would work if the original was a PII 266 or 300, don't know if it would work with the original being a P233MMX only.

Thanks.

The 600's will take up to a 400MHZ PII cpu. Intel didnt make anything faster in the PII line. You wouldnt see much differance betwen the 366 and 400. Your biggest increases would be with the going to the 366/400 cpu, max out the RAM and move up to a 5400/7200prm HD.

TJ

ndoggfromhell · #8 Post by **ndoggfromhell** » Fri Jan 06, 2006 3:32 pm

I'm more than sure you have to get a mmc1 module with off-die cache. The on-die cache ones won't work. I upgraded my friend 600 (no e or x) from a 233 to a 300 and it worked fine. It wouldn't take a 400mhz mmc1 that i had laying around with the cache on-die. Goodluck

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