[Scgeeks] RAM voltages

[Twayne]

Hi nerdettes & nerdudes,

Got a little problem with RAM specs and Crucial's a black hole, as are 
the ms HW AND SW newsgroups I've asked on.  So maybe someone here has an 
answer; wouldn't be the first time<g> spamcop's come thru for me:

I need to add RAM to a Walmart "special".  It's a 'Balance Digital 
Electronics' machine which means "Dig like hell for any information on 
it about anything".
  The currently installed RAM, according to Sys Info and SIW is an SSTL 
2.5V RAM, but the only RAM I can find anywhere says it's 2.6V.

   So, the questions:
    Does it matter?
   Will 2.6V work fine where it says SSTL 2.5V is currently installed?
   Would one of each work together or do they have to both be the same?

It's pretty common RAM otherwise:  PC3200-400MHz, non-ecc, non EPP, etc. 
But that voltage is giving me fits trying to work out.
What IS the 2.5 and 2.6V??  Is it a threshold?  Is it a level where, 
say, low is guaranteed to be anything below 2.6 (or 2.5) V?  I ask 
because, near as I can tell, the RAM supply itself is 3.3V, so ... 2.xV 
sounds like a threshold or hysterisis area.

It's "cute", actually:  the label on the front says Intel 3.0 GHz/XP 
Home, and inside you find a 2.4GHz processor running at 2.4 GHz, using 
3.066 GHz RAM, with a cpu cooler for up to 2.2 GHz, and 256 Meg of RAM. 
And the cpu fan blows the heat out of the heat sink and right into the 
intake of the fan for the switching power supply!  I took the cpu temp 
from 68C down to 41C just by putting in a copper heatsink and properly 
sized fan, plus a piece of foil to direct theheat toward the case vents 
instead of into the psu.  No WONDER Walmart specials are sooo, special! 
Holy shit, anyone could sell cheap machines too building them that way! 
Apparently there's dumb and then there's Walmart a few rungs below that. 
I'd hate to ever meet those Balance engineers!  What morons they must 
be.

Regards,

Twayne