[Beowulf] Node Drop-Off

[John Hearns]

Mark Hahn wrote:

> we (and the vendor) regard this as grounds for repair (usually
> the power supply).
> 
I backup what Mark says.
a) attach a console to the machine, either a serial line or a 
monitor/keyboard

b) run memtest on it, followed by CPUburn or some other 
compute-intensive task for a day or two

c) ask your vendor for support

You mention a BIOS upgrade - get through to technical support for your 
motherboard manufacturer, and get a clear statement of exactly what the 
BIOS upgrade does. Have memory timings or something changed - and check 
thet your memory is supported on that motherboard.



-- 
      John Hearns
      Senior HPC Engineer
      Streamline Computing,
      The Innovation Centre, Warwick Technology Park,
      Gallows Hill, Warwick CV34 6UW
      Office: 01926 623130 Mobile: 07841 231235