backwards compatible ram?

[subzero813]

since PC4200 flavor of the ram i want to buy is the same price almost as the PC3700, i was wondering if i shouldn't go for that instead. it says 3.1v in the listing at NewEgg, but i wonder if i had it running at PC3700, 2.8 wouldn't work? (their advertised PC3700 has better timing, lower voltage, so what i'm asking is, if i put the PC4200 at that speed, would it handle the lower voltage and better timings).

 

[Peter]

No DRAM maker is qualifying RAM at higher than 200 MHz and higher than 2.6V. Everything above is selection by the DIMM makers.

Hence, any DIMM with a fantasy spec above PC3200 will operate just fine at PC3200 specified parameters - 200 MHz, 2.6V. Above that, you're in YMMV territory in _any_ case.