Bruce wrote on March 1, 2010 23:49 (EDT): > Now wait - I don't recall that you can go over 300 Mhz in a 600, just > in a 600E. But then, I forget a lot of shit.
Mmmm...well, I haven't actually upgraded a 600 or a 600E myself and am just reporting what I've read. I gather that the 600 had at least two different motherboards. One of them shipped with a Pentium I MMX. Another one shipped with some flavour of PII. I assumed that the PII version would accept a PII 400MHz, but I may be wrong there, as there may be some kind of cache incompatibility. The board that shipped with a Pentium I, I think was not upgradable past the Pentium I 300MHz as Bruce suggests. Simon (the OP) didn't actually say whether he currently has a Pentium I or Pentium II, all he said was that he had a 300MHz. Phil. >> Bruce wrote on March 1, 2010 18:31 (EDT): >>> If it is a 600 it is MMC-1, 600E is MMC-2, they are not compatible >>> with each other. 300 is as fast as MMC-1 goes. > Phil wrote on March 01, 2010 11:36 PM (EDT): >> MMC-1 goes up to PII 400MHz. Bruce is probably thinking of Pentium >> I's which do indeed have a max of 300MHz on an MMC-1 board. >> >> Some people find that the PII 400 runs a bit hot so the 600 and >> 770E/ED machines can run into heat issues. When purchasing, be sure >> not to get a Celeron 400MHz on an MMC-1 board, as those are different >> beasts and are not exchangeable with Pentium-based MMC-1 boards. By >> the way, the CPUs themselves that sit on the MMC-1 and MMC-2 >> daughterboards are not replaceable (except by skilled professionals >> with cool tools). >> >> Phil. _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
