Poweredge 1950 IPMI

Thu Apr 10 14:35:27 UTC 2008

A while back I posted about reading the CPU temperature on a Dell
Poweredge 1950. The proposed solution was to use ipmitool to read the
temperature from the IPMI controller. This gives me a lot of readings,
including ambient temperature, but it does not give me the temperature
of the CPUs. It says disabled for the top four readings, which should be
the CPU readings.

After doing some research online, I found a possible alternate solution
of using coretemp. There was a thread that said that the Xeon dual-core
CPUs supported that. After checking the output of cpuid, I have
confirmed that these CPUs definitely do not support coretemp.

Here's the cpuid table (eax in 6 is for thermal monitoring capability
--it's all 0s):

 eax in    eax      ebx      ecx      edx
00000000 00000006 756e6547 6c65746e 49656e69
00000001 00000f64 04040800 0000e4bd bfebfbff
00000002 605b5001 00000000 00000000 007d7040
00000003 00000000 00000000 00000000 00000000
00000004 00000000 00000000 00000000 00000000
00000005 00000040 00000040 00000000 00000000
00000006 00000000 00000000 00000000 00000000
80000000 80000008 00000000 00000000 00000000
80000001 00000000 00000000 00000001 20100800
80000002 20202020 20202020 20202020 20202020
80000003 6e492020 286c6574 58202952 286e6f65
80000004 20294d54 20555043 30302e33 007a4847
80000005 00000000 00000000 00000000 00000000
80000006 00000000 00000000 08006040 00000000
80000007 00000000 00000000 00000000 00000000
80000008 00003024 00000000 00000000 00000000

Here's the output from ipmitool:

[root at zeta /home/achristianson]# ipmitool sdr 
Temp             | disabled          | ns
Temp             | disabled          | ns
Temp             | disabled          | ns
Temp             | disabled          | ns
Ambient Temp     | 24 degrees C      | ok
CMOS Battery     | 0x00              | ok
ROMB Battery     | Not Readable      | ns
VCORE            | 0x01              | ok
VCORE            | 0x01              | ok
CPU VTT          | 0x01              | ok
1.5V PG          | 0x01              | ok
1.8V PG          | 0x01              | ok
3.3V PG          | 0x01              | ok
5V PG            | 0x01              | ok
1.5V PXH PG      | 0x01              | ok
5V Riser PG      | 0x01              | ok
Backplane PG     | 0x01              | ok
Linear PG        | 0x01              | ok
0.9V PG          | 0x01              | ok
0.9V Over Volt   | 0x01              | ok
CPU Power Fault  | 0x01              | ok
FAN MOD 1A RPM   | 7350 RPM          | ok
FAN MOD 1B RPM   | 7275 RPM          | ok
FAN MOD 1C RPM   | 4575 RPM          | ok
FAN MOD 1D RPM   | 4425 RPM          | ok
FAN MOD 2A RPM   | 7500 RPM          | ok
FAN MOD 2B RPM   | 7350 RPM          | ok
FAN MOD 2C RPM   | 4725 RPM          | ok
FAN MOD 2D RPM   | 4500 RPM          | ok
FAN MOD 3A RPM   | 7800 RPM          | ok
FAN MOD 3B RPM   | 7350 RPM          | ok
FAN MOD 3C RPM   | 4800 RPM          | ok
FAN MOD 3D RPM   | 4875 RPM          | ok
FAN MOD 4A RPM   | 7500 RPM          | ok
FAN MOD 4B RPM   | 7875 RPM          | ok
FAN MOD 4C RPM   | 4800 RPM          | ok
FAN MOD 4D RPM   | 4800 RPM          | ok
Presence         | 0x01              | ok
Presence         | 0x01              | ok
Presence         | 0x01              | ok
Presence         | 0x02              | ok
Presence         | 0x01              | ok
Presence         | 0x01              | ok
DRAC5 Conn 2 Cbl | Not Readable      | ns
PFault Fail Safe | Not Readable      | ns
Status           | 0x80              | ok
Status           | 0x80              | ok
Status           | 0x01              | ok
Status           | Not Readable      | ns
Status           | 0x01              | ok
RAC Status       | 0x00              | ok
OS Watchdog      | 0x00              | ok
SEL              | Not Readable      | ns
Intrusion        | 0x00              | ok
PS Redundancy    | Not Readable      | ns
Fan Redundancy   | 0x01              | ok
CPU Temp Interf  | Not Readable      | ns
Drive            | 0x01              | ok
Cable SAS A      | 0x01              | ok
Current 1        | disabled          | ns
Current 2        | disabled          | ns
Voltage 1        | disabled          | ns
Voltage 2        | disabled          | ns
System Level     | disabled          | ns
Power Optimized  | Not Readable      | ns
ECC Corr Err     | Not Readable      | ns
ECC Uncorr Err   | Not Readable      | ns
I/O Channel Chk  | Not Readable      | ns
PCI Parity Err   | Not Readable      | ns
PCI System Err   | Not Readable      | ns
SBE Log Disabled | Not Readable      | ns
Logging Disabled | Not Readable      | ns
Unknown          | 0xc0              | ok
CPU Protocol Err | Not Readable      | ns
CPU Bus PERR     | Not Readable      | ns
CPU Init Err     | Not Readable      | ns
CPU Machine Chk  | Not Readable      | ns
Memory Spared    | Not Readable      | ns
Memory Mirrored  | 0x01              | ok
Memory RAID      | 0x01              | ok
Memory Added     | Not Readable      | ns
Memory Removed   | Not Readable      | ns
Memory Cfg Err   | 0x01              | ok
Mem Redun Gain   | 0x01              | ok
PCIE Fatal Err   | 0x01              | ok
Chipset Err      | 0x01              | ok
Err Reg Pointer  | 0x01              | ok
Mem ECC Warning  | 0x01              | ok
Mem CRC Err      | 0x01              | ok
USB Over-current | 0x01              | ok
POST Err         | Not Readable      | ns
Hdwr version err | Not Readable      | ns
Mem Overtemp     | 0x01              | ok
Mem Fatal SB CRC | 0x01              | ok
Mem Fatal NB CRC | 0x01              | ok

So, any ideas on how to read the CPU temperature from this machine?
Thanks in advance for any advice.

-- 
Andrew Christianson
Orases Consulting Corporation
Interactive Business and Technology Solutions
phone/ 301.694.8991 ext. 100
fax/ 301.694.8993
email/ achristianson at orases.com
http://www.orases.com