So I pulled out the tray, and the heat sink was pretty snug, so I decided to see if some canned air would do the trick. Definitely brought temps down considerably, only on the NB. Everything else on the tray stayed roughly the same
All temps C
"Idle" (10% load)
NB chip: 68 (was 83)
NB heat sink: 52 (was 62)
Heavy load (90-100% load for 30 min)
NB chip: 80
NB heat sink: 63
Is this still too high? What's the acceptable range?
While I'm here, I also noticed a huge difference between the 2 CPU temps and also the 2 RAM banks. Should I be worried about this? RAM is fully populated with 4 GB OWC modules (32 total) purchased at the same time as the Mac Pro in October, 2010
"Idle"
CPU A Heatsink: 38
CPU A Diode: 39
CPU B Heatsink: 30
CPU B Diode: 31
Mem module 1: 37
Mem module 2: 38
Mem module 3: 39
Mem module 4: 39
Mem module 5: 31
Mem module 6: 31
Mem module 7: 30
Mem module 8: 29
Heavy load
CPU A Heatsink: 62
CPU A Diode: 66
CPU B Heatsink: 48
CPU B Diode: 52
Mem module 1: 54
Mem module 2: 57
Mem module 3: 58
Mem module 4: 59
Mem module 5: 40
Mem module 6: 41
Mem module 7: 40
Mem module 8: 39
Am I still in acceptable ranges? Should I be concerned about the differences between the 2 CPUs and the 2 memory banks?
Thanks
