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evildragon

35 Posts

13966

August 11th, 2006 04:00

BIOS says CPU is 0MHz

I installed a new CPU in my Latitude CSx, and while it works, the BIOS says it's 0MHz... It's REALLY odd, but as I said, it works when it boots into XP, and shows the right speed...

Will this affect other operating systems, like DOS and/or Linux? As in the BIOS, where it says Boot Speed, the options are "0 MHz", and "COMPATIBLE"...

Screenshot

My signature shows the "real" specs of my laptop..

Message Edited by evildragon on 08-11-200601:45 AM

leduke30

4K Posts

August 11th, 2006 05:00

That board will correctly support a 700mhz Celeron, but not a Pentium 3 faster than 500, and a 800mhz Celeron did not allow it to boot. I sold one with a 700mhz Celeron and have never heard a squawk from the purchaser. I tried a 600/500mhz P3 and got the same result that you did.

Message Edited by leduke30 on 08-11-200601:55 AM

evildragon

35 Posts

August 11th, 2006 09:00

But the thing is, once it boots, it works great at 700MHz with the Pentium III 850MHz, and when it POSTs, it does say it has a 700MHz CPU (as the model number changed to J700)..

(i do know the 850MHz it has in it is supposed to run at 700, as it's a SpeedStep CPU, and the CSx don't support that)..

leduke30

4K Posts

August 11th, 2006 14:00

It is a BIOS problem and I believe it arises from the core voltages used by the Speedstep CPUs. If you can live with the BIOS error, keep using it. Your 850mhz is much more expenive than a 700mhz Celeron though, and seems like it is wasted on that non-Speedstep laptop

evildragon

35 Posts

August 11th, 2006 15:00

I only paid 27 dollars with shipping for the CPU, so am ok with the price.

I also needed a Pentium III, not a Celeron. I need the extra cache, and the SSE instruction set, not to mention, 100 MHz bus...

stonent

823 Posts

August 11th, 2006 18:00

Coppermine celerons do have SSE. But it has been so long I don't remember what processor type the CSx used. Did it use a chip or a card?

evildragon

35 Posts

August 11th, 2006 19:00

Oh, I didn't know that the Coppermine ones had SSE, I thought the Celerons didn't include that till later in the years...

The CSx has a MPGA-2 processor.. But anyways, there has to be a reason for a Pentium III over a Celeron, and I just want my CSx to be the fastest, so no more upgrades are needed..

stonent

823 Posts

August 13th, 2006 21:00

Celerons have smaller caches that's really it. But I dont think any coppermine mpga2's were made.

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