Re: NT 4.0 doesn't see upgraded RAM

Josh Hillman ( (no email) )
Fri, 28 Mar 1997 12:25:56 -0500

A few minutes after sending the original message, a co-worker found an
article in the MS Knowledge Base (ID# Q117373) that answered this problem.

There seem to be a few annoying limitations with the motherboard in
question here, so I'll probably just end up replacing it. After attempting
numerous times to update the BIOS, it would never install the new one, the
RAM worked as far as the BIOS is concerned, though as stated below, NT
didn't recognize anything over 64M. Also, this motherboard can only handle
90 or 100 MHz Pentium processors (it's a dual 100 right now). It's a
little annoying when you put in two new 133's and it still runs at 100. Oh

Josh Hillman

> > >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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