Qbus Backplanes

From: Tothwolf <tothwolf_at_concentric.net>
Date: Fri Jun 6 22:26:00 2003

On Fri, 6 Jun 2003, Antonio Carlini wrote:

> > I checked the voltages on the drive harnesses, and +5VDC and +12VDC
> > seemed to be within the normal variance. I'll see if I can't check
> > +5VDC on some of the boards too. I guess if that checks out ok, I'm to
> > where I started, thinking that there may be noise on +5VDC and/or
> > +12VDC. Has anyone else had similar problems with the BA123 power
> > supply?
>
> What does the console output look like when it locks up?

It locks up during the diagnostics, most often during the memory tests.
I've managed to get it to go though to the point where it was ready to
boot a couple of times. It seems to get worse if I leave the system
powered up. I know its not the boards, since I've tried known good sets.

-Toth
Received on Fri Jun 06 2003 - 22:26:00 BST