I've had an X9SCM-f system for a very long time. Until recently I had a Xeon E3-1230 v1 (Sandy Bridge) in it and I always remembered it idling at about 90F - and I used to care a lot about that because I had it in my living room and had a big passive heatsink on it with a gigantic (but SLOW) fan attacked to a big hole in the case I cut out with tin snips. I didn't want to fry it, but didn't want it too loud either.
Fast forward to now. Different house, and I have a server rack in my mechanical room and now it's in a bigger case with much better airflow and much less concern about how noisy - but it's reading 150F for all 4 cores now:
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +156.2°F (high = +185.0°F, crit = +221.0°F)
Core 0: +156.2°F (high = +185.0°F, crit = +221.0°F)
Core 1: +152.6°F (high = +185.0°F, crit = +221.0°F)
Core 2: +150.8°F (high = +185.0°F, crit = +221.0°F)
Core 3: +149.0°F (high = +185.0°F, crit = +221.0°F)
which was a bit alarming when I saw it. New thermal paste and reseating the HSF (active now) didn't do anything really. I had an E3-1270 v2 (Ivy Bridge) on the way though, so I swapped it out and put on a brand new HSF and it's still sitting ~150F.
Odd thing is, I can run cpuburn on it for a very long time and that reading hardly budges. And the other readings from lm-sensors make it seem like everything is nice and chill, and nothing feels hot, even an IR thermometer reading of the HSF shows it to be right at room temperature. The BIOS reports the cpu temp as "low" too.
So multiple CPUs, new paste, multiple heatsink-fans - same high temps from the ISA sensor - but it doesn't budge when I put it under a very extreme load and other readings are fine.
What gives?
Fast forward to now. Different house, and I have a server rack in my mechanical room and now it's in a bigger case with much better airflow and much less concern about how noisy - but it's reading 150F for all 4 cores now:
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +156.2°F (high = +185.0°F, crit = +221.0°F)
Core 0: +156.2°F (high = +185.0°F, crit = +221.0°F)
Core 1: +152.6°F (high = +185.0°F, crit = +221.0°F)
Core 2: +150.8°F (high = +185.0°F, crit = +221.0°F)
Core 3: +149.0°F (high = +185.0°F, crit = +221.0°F)
which was a bit alarming when I saw it. New thermal paste and reseating the HSF (active now) didn't do anything really. I had an E3-1270 v2 (Ivy Bridge) on the way though, so I swapped it out and put on a brand new HSF and it's still sitting ~150F.
Odd thing is, I can run cpuburn on it for a very long time and that reading hardly budges. And the other readings from lm-sensors make it seem like everything is nice and chill, and nothing feels hot, even an IR thermometer reading of the HSF shows it to be right at room temperature. The BIOS reports the cpu temp as "low" too.
So multiple CPUs, new paste, multiple heatsink-fans - same high temps from the ISA sensor - but it doesn't budge when I put it under a very extreme load and other readings are fine.
What gives?