CPU Alarm

[FreeBug]

I'm getting an alarm on a SuperMicro X7DCL-3 with two Xeon 5148 CPUs installed, and a pair of SuperMicro SNK-P0017 1U passive heatsinks. The BIOS is reporting both CPUs as "high." The manual says I should take action, but I don't understand what the problem is. Xeon 5148's are a low voltage processor and should be fine with the heatsinks I have installed.

I suppose the alarm could be for redundant PSUs (I only have one installed), but I have been unable to find a way to disable the alarm.

Any suggestions?

 

[m0nkey_]

That board has a IPMI, log in to it and it will tell you exactly what's going on and you'll be able to access data from the sensors.

 

[Mirfster]

If it has IPMI, you can also get this information via the GUI Shell or Putty:

Example Commands:
ipmitool sdr list
ipmitool sel list

 

[jgreco]

And very likely if it's reporting the CPU's as both high, they're both too hot.

 

[FreeBug]

And very likely if it's reporting the CPU's as both high, they're both too hot.

That would be the most logical explanation, I just don't understand why it happens so quickly. I can do a cold boot and after the start up sequence is finished it immediately sounds the alarm. I've tried putting a fan on the heatsinks to no avail. And I won't be able to log into the system via IPMI until I get the expansion board to add that functionality :(

 

[jgreco]

How warm are the heatsinks after a few minutes?

 

[jgreco]

And are you running the chassis with the cover on? The passive heatsinks cannot work correctly without the air shroud and proper chassis airflow.

 

[DrKK]

If it has IPMI, you can also get this information via the GUI Shell or Putty:

Example Commands:
ipmitool sdr list
ipmitool sel list

Or just "ipmitool sensor":

Code:

[root@giskard] ~# ipmitool sensor
CPU Temp  | 25.000  | degrees C  | ok  | 0.000  | 0.000  | 0.000  | 95.000  | 98.000  | 100.000
System Temp  | 24.000  | degrees C  | ok  | -9.000  | -7.000  | -5.000  | 80.000  | 85.000  | 90.000
Peripheral Temp  | 29.000  | degrees C  | ok  | -9.000  | -7.000  | -5.000  | 80.000  | 85.000  | 90.000
PCH Temp  | 39.000  | degrees C  | ok  | -11.000  | -8.000  | -5.000  | 90.000  | 95.000  | 100.000
VRM Temp  | 31.000  | degrees C  | ok  | -9.000  | -7.000  | -5.000  | 87.000  | 92.000  | 97.000
DIMMA1 Temp  | 21.000  | degrees C  | ok  | 1.000  | 2.000  | 4.000  | 80.000  | 85.000  | 90.000
DIMMA2 Temp  | 22.000  | degrees C  | ok  | 1.000  | 2.000  | 4.000  | 80.000  | 85.000  | 90.000
DIMMB1 Temp  | 22.000  | degrees C  | ok  | 1.000  | 2.000  | 4.000  | 80.000  | 85.000  | 90.000
DIMMB2 Temp  | 21.000  | degrees C  | ok  | 1.000  | 2.000  | 4.000  | 80.000  | 85.000  | 90.000
FAN1  | 1100.000  | RPM  | ok  | 400.000  | 600.000  | 800.000  | 25300.000 | 25400.000 | 25500.000
FAN2  | 1400.000  | RPM  | ok  | 400.000  | 600.000  | 800.000  | 25300.000 | 25400.000 | 25500.000
FAN3  | 1100.000  | RPM  | ok  | 400.000  | 600.000  | 800.000  | 25300.000 | 25400.000 | 25500.000
FAN4  | na  |  | na  | na  | na  | na  | na  | na  | na
FANA  | 900.000  | RPM  | ok  | 400.000  | 600.000  | 800.000  | 25300.000 | 25400.000 | 25500.000
Vcpu  | 1.755  | Volts  | ok  | 1.242  | 1.260  | 1.395  | 1.899  | 2.088  | 2.106
VDIMM  | 1.460  | Volts  | ok  | 1.096  | 1.124  | 1.201  | 1.642  | 1.719  | 1.747
12V  | 11.949  | Volts  | ok  | 10.164  | 10.521  | 10.776  | 12.918  | 13.224  | 13.224
5VCC  | 5.031  | Volts  | ok  | 4.225  | 4.380  | 4.473  | 5.372  | 5.527  | 5.589
3.3VCC  | 3.344  | Volts  | ok  | 2.804  | 2.894  | 2.969  | 3.554  | 3.659  | 3.689
VBAT  | 3.045  | Volts  | ok  | 2.400  | 2.490  | 2.595  | 3.495  | 3.600  | 3.690
AVCC  | 3.344  | Volts  | ok  | 2.399  | 2.489  | 2.594  | 3.494  | 3.599  | 3.689
VSB  | 3.299  | Volts  | ok  | 2.399  | 2.489  | 2.594  | 3.494  | 3.599  | 3.689
Chassis Intru  | 0x0  | discrete  | 0x0000| na  | na  | na  | na  | na  | na

 

[Mirfster]

Or just "ipmitool sensor":

Yep, could even do: ipmitool sensor | grep CPU

 

[DrKK]

Yep, could even do: ipmitool sensor | grep CPU

or even, ipmitool sensor | grep CPU ; echo "I am the shizzle"

 

[jgreco]

or even, ipmitool sensor | grep CPU ; echo "I am the shizzle"

I think you misspelled "sizzle" in this case.

 

[Mirfster]

lol

 

[Ericloewe]

Yep, could even do: ipmitool sensor | grep CPU

In this case, having all the sensors visible is probably useful.

 

[FreeBug]

How warm are the heatsinks after a few minutes?

After reapplying compound and using a laser temperature probe I got a base temp of 73.4F while shining the laser across the fins. After 15 minutes I got a steady reading of 86.0F. Everything is on an open test bench at the moment, so I just laid a 120mm case fan on top of the heat sinks blowing down. Not ideal, but it doesn't seem to make a difference in the temp readings.

The north bridge reads 115F, which seems high to me.

It's been about 25 minutes now, and my readings (all done on CPU2) seem odd. One half of the heatsink is about 10+ degrees hotter than the other. CPU1 doesn't exhibit the same phenomenon. The heatsink next to CPU2 must be obscuring my readings. CPU1 reads a 80F at the moment.

Can I boot Ubuntu off a flash drive and somehow check temps through command line?

 

[anodos]

After reapplying compound and using a laser temperature probe I got a base temp of 73.4F while shining the laser across the fins. After 15 minutes I got a steady reading of 86.0F. Everything is on an open test bench at the moment, so I just laid a 120mm case fan on top of the heat sinks blowing down. Not ideal, but it doesn't seem to make a difference in the temp readings.

The north bridge reads 115F, which seems high to me.

It's been about 25 minutes now, and my readings (all done on CPU2) seem odd. One half of the heatsink is about 10+ degrees hotter than the other. CPU1 doesn't exhibit the same phenomenon. The heatsink next to CPU2 must be obscuring my readings. CPU1 reads a 80F at the moment.

Can I boot Ubuntu off a flash drive and somehow check temps through command line?

What are these "F" measurements. No one uses Fahrenheit to measure computer temps. :D

 

[FreeBug]

The droning CPU alarm has taken my ability to push the F to C button ;)

 

[SweetAndLow]

Why haven't you used an operating system to check your CPU temps? Sysctl -a | grep -i temperature

 

[FreeBug]

Why haven't you used an operating system to check your CPU temps? Sysctl -a | grep -i temperature

I'm a noob unfortunately. The temps listed are after 1.5 hours of usage.

Ignore the MacBookAir thing. I booted from a persistent USB install of Ubuntu so I didn't have to wait.

 

[anodos]

The droning CPU alarm has taken my ability to push the F to C button ;)

Bah, I'm a freedom-loving, beef-eating, gun-toting, flag-waving american and you forced me to convert F to C to understand a temp reading. That's just wrong!