[Beowulf] AMD Roadrunner open compute motherboard
hahn at mcmaster.ca
Fri Jan 18 12:00:11 PST 2013
> As in contradiction to what Mark Hahn says - it needs active cooling.
if anyone cares: a dimm dissipates roughly 2W, depending on generation,
whether it's LV, number of devices, etc. one of those duplex 14krpm fans
is typically rated at about 12W.
in a mainstream server, each CPU will dissipate around 100W.
typical SATA disks, about 5W. since servers normally have "platinum"
plus80 ratings these days, the PSU would need to dissipate ~30W.
NICs are normally <= 8W.
so even a 1W device needs some airflow, but it's mostly CPUs that count.
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