how to disable cpu

[VINU]

dear friends,

i have a k class server and one of its cpu gone bad ( repated lpmc) .How to start the machine with the other cpu.

request ur help as fast as possible

regds

vinu

[Victor Fridyev]

Hi,
Extract the bad CPU, the computer will start up normally without any change in its settings.
Just check its primary boot.

[John Poff]

Hi,

This question came up here a couple of days ago. Take a look at this thread:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=611271

JP

[Tim D Fulford · Accepted solution]

I forget the exact syntax

boot into PDC
go into service menu (ser)
then type "cpu" & you can disable the cpu by following the instructions, like
cpu 2 dis

Tim

[Mel Burslan]

if a CPU is definitely bad, all you have to do is reboot the machine. At the time of startup h/w test, it will mark it as bad and will boot w/o that CPU being presented to the OS.

[Tim D Fulford]

Hi

JUST re-booting the server will not necessarily disable the CPU. After all the error is LPMC (Low Priority Machine Code), This usually means a correctble error occoured.

I have recently dealt with rp8400 system with a faulty CPU that we had to maually disable (it was re-booted a few times without disabling the CPU).

Regards

Tim

[VINU]

hi friends,

I disabled the cpu 0 at the pdc prompt and the system came up using the cpu 1 .
Since no expert was available at onsite to remove the defective cpu physically this was the only option.

The procedure is in the pdc prompt , got to configuration menu , by typing 'co'.

Then at the configuratio menu , type ' cpu 0 off' to disable cpu 0.Then do a power cycle of the server.

Thanks for all ur valubale suggestions


Regards

Vinu

[Ted Buis]

I don't think you can disable a bad Monarch CPU, which I would expect to be CPU0. If that is the bad CPU, it needs to be replaced.