Re: NT 4.0 doesn't see upgraded RAM

James M. Cook ( )
Thu, 27 Mar 1997 16:50:52 -0500

Ah, if only we lived in such a perfect world. Our aptiva has the same
problem so we found the latest BIOS update and flashed onto the server.
The end result is a server which frequently hangs on reboot and still only
sees 65M of RAM. Call IBM and they will try to charge you to find out that
there probably is no fix. In other words, try the upgrade but don't get
your hopes up.

James M. Cook - Systems Engineer Tel. (603)798-4477
P.O. Box 4021 FAX: (603)798-4192
30 Chichester Road EMAIL:
Concord, NH 03302-4021 HTTP://

> From: Don R. James, Jr. <>
> To:
> Subject: Re: NT 4.0 doesn't see upgraded RAM
> Date: Thursday, March 27, 1997 4:31 PM
> > >Does anyone have any idea why an Intel-based NT 4.0 SP2 (with the
> various
> > >hot-fixes) won't see the RAM I just added to the machine? This dual
> > >Pentium-100 started with 64 MB and I upgraded it to 128, but NT still
> only
> > >sees 64 megs. The BIOS sees the 128 megs just fine, but NT doesn't.
> > >the way, the kernel hot-fix was installed for dual-processor mode...
> > >
> > >Any ideas why this might be happening?
> >
> > I answered this before. It is a bug in the motherboard/BIOS you're
> using.
> > The POST test is using ONE method to determine the amount of RAM, and
> then
> > NT is calling another interrupt during the blue-screen count. That
> > one that NT uses is BUGGY in your BIOS. The only way out is a new
> > motherboard.
> The only way out is may not have to be a new motherboard. Chances are you
> can upgrade the flash ROM in the system with a later BIOS that correctly
> implements the call that WinNT is trying to make. Check with the system
> board vendor or BIOS vendor (if you know it) and see if there is an
> available.
> Don James
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