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echo: tech
to: WAYNE CHIRNSIDE
from: JIM HOLSONBACK
date: 2003-02-07 23:38:00
subject: CMOS battery

-=> WAYNE CHIRNSIDE wrote to CHARLES ANGELICH <=-

 RJT> built into bigger chips, if that Pentium in fact had
 RJT> 8250-type uarts. There oughta be some easy software that
 RJT> could be run to determine that, doncha think?

 CA> MSD.EXE that is incl with W31 installs should work.

 WC> I've found MSD.EXE to be highly flawed and only can
 WC> be replied on to report how the configured system
 WC> is configured if it's configured correctly in the first
 WC> place.

Newer version, as on your Win95 CDROM, may be more reliable or
accurate than older version(s).  In any event, it should report
correctly on the COMport UART compatibility.

 WC> However as my system _is_ correctly configured MSD
 WC> reports just fine.

 WC> I have HS UART's in the Pentium and confusion on that point was in
 WC> my lack of clarity of my intent to revive an old 486 board
 WC> by salvaging a UART off of another dead board.
 WC> Now I'm looking for a DOS memory utility that might
 WC> tell me if my EDO RAM is parity or non-parity
 WC> and 60 or 70 NS prior to buying 64 Meg. of EDO
 WC> on Ebay.

Hmm. I can't recall that I've ever seen any EDO sticks with parity
chips.  In any event,  just count the memory chips on the SIMM, and if
8 or 16 it is non parity, and if 9 or 18 it is parity.

For speed,  that can usually be determined by taking a look at the
numbers on a typical chip,  generally on the right hand end of a line -
-  you should see a number like  -60, -70, -6 or -7.  But even if the
ones you have now now are 70,  I'd recommend you only consider buying
60's, as less likely to need adding a wait state for system stability.

Good luck - - -  JimH.

... Gone crazy, be back later, please leave message.
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