On Sun, 14 Mar 2010, Ross Cameron wrote:

quoted text
> On Sun, Mar 14, 2010 at 12:27 AM, Jeff Ross <jross@openvistas.net> wrote:
>> Jeff Ross wrote:
>>>
>>> Henning Brauer wrote:
>>>>
>>>> * Jeff Ross <jross@openvistas.net> [2010-03-02 16:59]:
>>>>>
>>>>> I bought a replacement supermicro motherboard off fleabay that has
>>>>> dual Opteron 250 @2.4GHz. B The cpus have passive heatsinks, it is in
>>>>> a supermicro 2U chassis with 4 front fans.
>>>>
>>>> do you have the air shroud? this plastic thing that forms a "tunnel"
>>>> over the heatsinks? it is required.
>>>>
>>>
>>> No, the motherboard didn't come with that. B If I can find one will that
>>> mean I don't need the active heatsinks?
>>>
>>> Thanks!
>>>
>> As a followup, here's what I have done to try to alleviate this:
>>
>> I bought and installed the plastic air shroud using the passive heatsinks
>> that came with the motherboard. B System still overheats and shuts down
>> within a couple of B minutes.
>>
>> I bought 2 AMD brand active heatsinks, specific to this processor, and
>> installed them. B That meant I had to ditch the plastic air shroud, but the
>> motherboard manual says that active heatsinks are suggested for 2U chassis
>> and the air shroud was only . B I also used new heat sink compound when
> I
>> put everything together.
>>
>> System seems to run okay at idle. but make it work a little--like compiling
>> a kernel or tar-ing up a big file and the temp indicator comes on and
> sysctl
>> reports
>> temps (on both the kate and lm sensors) finally exceeding 100 degrees C on
>> one processor, with the other is not that far behind at over 80 deg C.
>>
>> At that point the system shuts down.
>>
>> I'm at a loss as what to try next. B If I've read the AMD specs correctly
>> these processors should not exceed 71 deg C but I see temps near that at
>> inear dle.
>>
>> Did I just get a lemon motherboard/CPU combo? B I still have a couple of
> days
>> on my 30 day exchange if this is the case.
>
>
> I'd get it all swopped out, something's very suspect there.
>
> I've got 8 Opteron 250 servers at the office that I regularly pound
> the heck out of (dist-cc cluster for bulk and repetitive building of
> software) and the hottest we've ever seen the CPUs go was 42deg.


Thanks--that is exactly what I was loooking for.

I've e-mailed the vendor.  With luck I'll have replacement or at least my 
money back before long.

Jeff