NetServer LPr - can't go past 650 MHz (!) - D9431A

[CA1190495]

Leo,

what is the max speed you can set on the dip switches ? and what processors do you have in the unit ?

I have about 60 of these units an i know them inside and out..

Joe

[Leo Baghdassarian]

Hey Joseph, oh man, I would love if you could help me... I have the original D9431 that was configured with the 650 MHz processor in there, however it has DIP switches to go to the 800MHz processor... all the documentation shows that my motherboard and version of LPr is compatible with faster processors... I also have the real HP 650 upgrade (with VMU) in there too... any thoughts?

[CA1101872]

PIII CPU's are multipulier locked at the factory.

So if you run an 866Mhz-133Bus CPU at 100 bus speed it will be a 650Mhz CPU.

866/133=6.5ish

6.5 * 100 = 650.

For 850Mhz using 133Mhz CPU's in a 100Mhz bus machine you would need 8.5 multipulier CPU's

Theorectly you could use 1133Mhz S370 CPU's on Slockets but I do not know how they would cool in an LPr.

You would be better off buying 850Mhz-100Bus Slot 1 CPU's.

[Leo Baghdassarian]

Thanks Michael,

What confuses me is that even when I would drop the multiplier to tell the mobo to run the real 650 MHz processors to 500MHz, the bios wouldn't budge... i wanted it to at least yell at me or something. I kept the 650's in there and try to "overclock" and "underclock" them - not to actually run then that fast - but more to just see if I would be yelled at from the HP bios... but nothing... it kept saying "650MHz"

strange

[CA1101872]

Intel CPU's have been multipulier locked since the days of the 486DX/2's.

The multiplier is hard coded into the CPU, there is nothing you can do to change it.

There are unlocked Intel CPu's but they are pre-production engineering samples and almost impossible to get unless you know someone at Intel.

[Leo Baghdassarian]

Thanks Mike, I am well aware of that. The only way to over clock intel CPU's is to increase the system bus. However, all I wanted to do was get some feedback from the HP that my settings were incorrect... Since this is supposed to be a server, I would have thought the bios would have yelled at me stating something like "incorrect clock rate, please verify and retry" or something like that. But it doesn't do anything.

- Leo

[CA1101872]

That surprises me as well.