> I sometimes see 5V DIMM modules that say "not compatible with G3 & G4 > upgrade cards". I know that 70 nS memory is slightly slower than the > bus speed and could possibly cause problems. I believe that 60 nS is > quicker than the 50 MHz bus of Unsupported machines, and I've never had > problems with it.
50 MHz means you would really need 20ns memory to avoid wait states. That's why the Pre-G3 machines have a cache slot. When you put the G3 in you have higher speed cache on the processor card, and you don't use the motherboard cache (and should remove it), but that also means the processor card's making more demands on the RAM. It's not just the speed, there's how the DIMM's organized (eg, number of chips, width of chips, buffering, EDO vs FPM)... since 60ns memory is usually newer than 70ns memory, it's more likely to have "aggressive design" (i.e. newer technology that allows the DIMM to be made more cheaply at the cost of compatibility with older hardware). -- Unsupported OS X is sponsored by <http://lowendmac.com/> Support Low End Mac <http://lowendmac.com/lists/support.html> Unsupported OS X list info <http://lowendmac.com/lists/unsupported.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive <http://www.mail-archive.com/unsupportedosx%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
