Re: [gentoo-amd64] Re: mce log errors

[Deedra Waters]

Hrmmm,

The origional ps in this case was 500. We replaced it with 550 which
from what i gather should have been enough to handle the drives as well
as everything else, that's what i was told anyway. What would generally
be recommended for this much stuffed into a case like this?
On Tue, 6 Dec 2005, Duncan wrote:

> Date: Tue, 06 Dec 2005 23:11:00 -0700
> From: Duncan <1i5t5.duncan@×××.net>
> Reply-To: gentoo-amd64@l.g.o
> To: gentoo-amd64@l.g.o
> Subject: [gentoo-amd64]  Re: mce log errors
>
> Deedra Waters posted <Pine.LNX.4.64.0512062343090.6137@monster>, excerpted
> below,  on Tue, 06 Dec 2005 23:44:40 -0600:
>
> > Hrm, it doesn't look to be a heat issue. I opened the case and took a
> > look inside when i saw the last message,and it looks perfectly cool and
> > happy.
> >
> > I do notice however, that it's only happening when i hammer the raid
> > array, which is on a pci promise controler.
>
> That would appear to be the voltage issue I mentioned in my last post,
> that I was writing when you posted the above.  Pretty good odds, I'd say.
>
> Also, since the RAID array would be powered directly off the power supply,
> not from the board, that points squarely at it.  Replace it with a good
> one.  Check ratings for the 12 volt rail hard drives usually use, in
> particular.  Some of the higher end supplies actually have two
> electrically separate 12-volt rails, distributing the stress.  However,
> you probably don't actually /need/ that feature, as long as the rating for
> the one is high enough to handle all those drives (plus additional
> accessories, CD/DVD burner, perhaps, and USB bus powered devices and the
> like).
>
>

-- 
Deedra Waters - Gentoo developer relations, accessibility and infrastructure -
dmwaters@g.o
Gentoo linux: http://www.gentoo.org

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