[Beowulf] Re: Purdue Supercomputer

Geoff Jacobs gdjacobs at gmail.com
Sun May 11 19:47:11 EDT 2008


Karen Shaeffer wrote:
<snip>
> If the motherboard is powered down, then the IPMI board can
> restart it and can also report failures at the system board level.
> So the system board power distribution must be distinct from the
> IPMI power distribution, even when they connect to a node on the
> system board that has power all the time. Is that reasonable? If
> so, then it appears to me that a full IPMI implementation on the
> system board would need that distinct and independent power
> distribution that used to be on the daughterboard, if that
> capability is to be maintained. That is all I really meant with my
> comment.
You want a persistent, fault tolerant +5V supply. Anyone have any
thoughts about exactly how stable +5V standby off the PCI rails really is?

-- 
Geoffrey D. Jacobs

_______________________________________________
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf

!DSPAM:482785d250518362916074!



More information about the Beowulf mailing list