RE: HP ProLiant DL360G3 rebuttal... ;-)

From: Holger Kipp [mailto:Holger.Kipp_at_alogis.com]
 ...
> 
> BTW: about 13% (4 out of 30) of the shipped DL360G3 dual xeon systems
> had one heatsink not properly mounted (gave no problems with W2K, but
> FreeBSD SMP got ungraceful shutdowns after a few minutes). Remounting
> cpu-heatsinks helped :-)

Just a guess _at_ what might be happening here (observed on supermicro
x5dpr dual xeon systems...)
The XEON has a mode where it drops to 1/8 clock speed when it
gets too hot. It also has other clock modulation.
These require some SMM (system management mode) bios support.
I've found that in our systems when we enter SMM that it doesn't
usually come back to the OS very well. Win2k has SMM support I would
guess. On our systems this is something that is somewhat controllable
via the 'installed os: win2k/other/...' option in the BIOS.
Problems observed on reentry to the OS: uptime issues (due to
unknown time in SMM), our hardware watchdog sometimes times out
(since the OS has no control), watchdog timeouts on lan chips.

I hacked lmmon to add in the xeon temperature sensor support.
I attached my hack if anyone cares. I hard-coded the SMB address
for the supermicro board i use (char cid[] = { 0x18,0x1a };) so
you might need to change that. You'll need ichsmb in your kernel.

--don