HP Proliant ML150 G5 Turns itself off after power-on

[Kane Partridge]

The unit will turn off after 15-20seconds after power on. Initial POST screen flashes up on VGA output a split second before powering down. CPU and RAM are detected.

Logging into the serial console and running a few commands, the last log record shows this:

Properties
number=37
date=07/10/2008
time=13:33:04
sensordescription=Inlet Amb Tem
eventdescription=Lower Critical-going low
eventdirection=Assertion

Would this be the reason the unit is turning off?

Reading the sensor directly:

show oemhp_sensor_num39lun0
oemhp_sensor_num39lun
Targets

Properties
oemhp_readingtype=1
oemhp_sensortype=1
oemhp_status=61
oemhp_reading=128-
oemhp_sensorstring=Inlet Amb Tem


What values should be read here?

If this is a faulty sensor, how can I find out where this temperature sensor is?

Is the PEF configuration enabling the unit to turn itself off on this sensor event? If so, is there a way to turn off the PEF via command line? (I do not have iLO 100c card, serial console is my only way of configuring the device)

Would appreciate any help.

[KarloChacon]

I've seen similar issue and it is the temperature sensor cable I don't have the spare part number handy

just call HP and request this part to be replace it is just a simple cable

just open your box I think you can get it
it is one of the cables that goes from the bezel to the System Board

[Kane Partridge]

Thanks for the reply, I searched the HP Parts Store and found: 460423-001 - Temperature sensor cable - For 5U rackmount chassis.

I have started to track down HP resellers in Australia that will have this part but it looks like I'll have to order it from the US so it might take a while.

In the meantime is there any way I can bypass this sensor (either in hardware or via the serial console?)

Cheers.

[KarloChacon]

I found that issue for DL180 G5 which shares the system board with ML150 G5 so both have the same issue but different parts needs to be replaced

I think you can try remove this temperature sensor cable from system board and server will boot up fine well at least that worked for a DL180 g5 I hopes it does the same with the ml150 g5

but does not your server have warranty? a G5?

[Kane Partridge]

Even with the temperature sensor cable removed, the problem still occurs.

I did not buy the unit direct from HP, I will follow up regarding warranty.

Cheers.

[John Salfer]

Has anyone found a solution to this? We have a ML310 that sounds like it's doing the same thing. HP's support has been working on the system over four days now and still have no clue!

Thanks!
John.

[MAH_2]

Hi I faced the same issue on DL 180G5 server. The problem was with temp sensor cable. I have replaced the cble . Now it is working fine.The cable is with Power button switch.

[John Salfer]

Thanks! We'll check to see if this is something the support guys tried.
John.