bri3d wrote:as you can see the bedrock gets pretty hot but I'm at altitude (8000ft) so it might be an effect of that rather than my hacky cooling.
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Advisory Critical Fault Current
Description State Temp Temp Temp Temp
----------------- ---------- --------- --------- --------- ---------
6 BEDROCK Enabled [Autofan Control] 70C/158F 51C/123F
51C/123F falls under the bedrock fault temp of 70C/158F listed by your L1, but would be above the 48C/118F crtical temp given by nekonoko's O350 <and very close to his system's 55C/131F fault temp>.
The SGI Onyx 350 Visualization System User's Guide gives the average heat dissipation for the Onyx 350 with InifinitePerformance graphics at 1700 Btu/hr average, and a headless Onyx 350 compute module at 1315 Btu/hr average. A fairly large increase when you consider the InfinitePerformance system lost a significant portion of it's exhaust capacity with the removal of one of the two large 112 cfm radial fans <to allow installation of the graphics board>. That may also be why the L1 fan speed table includes a fan speed for 'Odyssey'. The 030-1909-003 V12 SGI uses in the Onyx 350 IP may have a different part number because it includes a fan.
The differences in heat dissipation and exhaust fan capacity is probably the reason the L1 env output <and fault temperatures given> for the headless and IP graphics systems are different. Apparently when an Odyssey board is detected the L1 uses a different table of fan speeds, temps and thermal zones.