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  2. MIDRANGE-L
  3. September 2001

RE: Memory Upgrade

I wondered this myself once.  When I first started working on these systems
and 2Gb cards for our 740 were oh so pricey.  Can't remember how much now,
but I think the total bill (8Gb per sys, 2 systems) was over $500,000.

So anyway, I went and read up on AS/400 memory, and according to IBM there
is error-checking inside these monstrous boards (for 740s anyway) that
account for cosmic rays and some other crazy stuff.

Amazingly, memory in the 170's looks a lot like the stuff I put in my
PC...hmmmmm.  Wonder if there's any cosmic protection there!

jch

-----Original Message-----
From: Draper, Dale
To: 'midrange-l@midrange.com'
Sent: 9/25/01 4:18 PM
Subject: RE: Memory Upgrade

Why exactly is it that IBM does not use PC standard memory chipsets? If
they
did, this 256M would cost about $80.

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