Jul 14th, 2013

n0001 PSU burned and replaced with a raptor 750W. The PSU that was replaced was claimed to be a 550W unit. How on earth do they calculate the stated wattages on PSUs ???

All-in-all -and after 4.5 years of continuous usage- this Beowulf cluster's weak links were [1] PSUs (x12 replacements and counting), [2] disks (x2 but this was possibly due to a bad batch), [3] GPUs (x1), [4] UPS (all over-rated, no way to keep the machines up for more than 30 seconds). No problems with memories or CPUs.