[newbie] problem with too much ram

[Liaw, Andy]

Hi everyone,

I have a problem with adding RAM that I hope someone can help me with.

We have a Compaq SP750 (dual P3 866 Xeon) that had 1.5GB of RDRAM.  When we
added another 512MB to bring the total up to 2GB, the LM7.1 installed on the
machine refuse to boot.  It gets to the place where it's suppose to load the
RAM disk (I think) but go into kernel panic: unable to mount root.  We tried
just putting in 1792MB of RAM, then the machine boots up w/o any problems.
Anyone has any idea why?

TIA.

Andy