A reboot makes the situation go away, but it's very puzzling. Here's a technical info dump from the Macs Fan Control app during one of these episodes:
Code: Select all
Macs Fan Control 1.4.4
MacPro6,1
CPU: Intel(R) Xeon(R) CPU E5-1620 v2 @ 3.70GHz [105]
GPU: AMD FirePro D300 (FireGL V) [active], AMD FirePro D300 (FireGL V)
Windows 8.1 x64
Fans:
Main-min{790}curr{2323}max{1900}mode{0} <--- 2323 RPM! Yow!
TempSensors:
TA0P () - -1, 130
TA0V () - -1, 128
TA0p (Ambient MLB) - -1, 130
TA1P () - -1, 130
TA1p (Ambient 2) - -1, 130
TA2P () - -1, 130
TA2p (Ambient 3) - -1, 130
TC0E () - -1, 194.078
TC0F () - -1, 194.684
TC0J () - 0.605469, 0.605469
TC0P () - -1, 130
TC0T () - 0.0117188, 0.0117188
TC0c (CPU Sensor 1) - 39, 39
TC0p () - -1, 130
TC1P () - -1, 130
TC1c (CPU Sensor 2) - 41, 41
TC1p (CPU VCore Proximity) - -1, 130
TC2c (CPU Sensor 3) - 38, 38
TC3c (CPU Sensor 4) - 41, 41
TCSc () - 40, 40
TCXR () - -1, 194.453
TCXc (CPU PECI) - 43.4531, 43.4531
TCXr () - -1, 194.453
TFPR () - -1, 0
TG0D () - 35.875, 35.875
TG0E () - 35.7344, 35.7344
TG0F () - 36.1367, 36.1367
TG0J () - 0.402344, 0.402344
TG0M () - 34.75, 34.75
TG0P () - 33.25, 33.25
TG0R () - 35, 35
TG0T () - -1, 255.996
TG0d (GPU 1 Diode) - 35.875, 35.875
TG0m () - 34.75, 34.75
TG0p () - 33.25, 33.25
TG0r () - 35, 35
TG1D () - 39.75, 39.75
TG1E () - 39.543, 39.543
TG1F () - 40, 40
TG1J () - 0.457031, 0.457031
TG1M () - 42.5, 42.5
TG1P () - 38.875, 38.875
TG1R () - 40, 40
TG1T () - 0.00390625, 0.00390625
TG1d (GPU 2 Diode) - 39.75, 39.75
TG1m () - 42.5, 42.5
TG1p () - 38.875, 38.875
TG1r () - 40, 40
TH0A () - 31.25, 31.25
TH0B () - 31.125, 31.125
TH0C () - 31.125, 31.125
TH0F () - -1, 209.852
TH0R () - -1, 210.125
TH0V () - -1, 128
TH0a () - 31.25, 31.25
TH0b () - 31.125, 31.125
TH0c () - 31.125, 31.125
TI0P () - 33.75, 33.75
TI0T () - 37, 37
TI0p (I/O Board Proximity) - 33.75, 33.75
TI0t () - 37, 37
TI1P () - 33.125, 33.125
TI1p () - 33.125, 33.125
TM0D () - -1, 129
TM0P () - -1, 130
TM0R () - -1, 130
TM0V () - -1, 128
TM0d () - -1, 129
TM0p (DIMM 1,2 Proximity) - -1, 130
TM0r () - -1, 130
TM1D () - -1, 129
TM1P () - -1, 130
TM1R () - -1, 130
TM1a () - -1, 128
TM1d () - -1, 129
TM1p (DIMM 3,4 Proximity) - -1, 130
TM1r () - -1, 130
TM2D () - -1, 129
TM2a () - -1, 128
TM2b () - -1, 128
TM2c () - -1, 128
TM2d () - -1, 129
TM2e () - -1, 128
TM2f () - -1, 128
TM3D () - -1, 129
TM3a () - -1, 128
TM3b () - -1, 128
TM3d () - -1, 129
TM4a () - -1, 129
TM4b () - -1, 128
TMLD () - -1, 129
TMRD () - -1, 129
TMXD () - -1, 129
TMXP () - -1, 128
TPCD () - -1, 128
TPCd (Platform Controller Hub Die) - -1, 128
TS0V () - -1, 128
Te0T () - 56, 56
Te0t (PCIe Switch Diode) - 56, 56
Tm0P () - -1, 130
Tm0p () - -1, 130
Tp0F () - 39.6641, 39.6641
Tp0T () - 39.625, 39.625
Tp0t (PSU Secondary Heatsink) - 39.625, 39.625
Disk drives:
APPLE SSD SM1024G - 31.25
