Re: Re: PC PSU

[Jim Noble <yahoo-groups@xxxxxxxxxxxxxxxxxx>]

>
> i emailed my motherboard manufacturer (Jetway) to see if they could
> throw any light on this matter.  I got a reply which I'm not sure I
> understand? :)
> It said
> ===========================
> Dear Sir
> Thank you for support JETWAY products.
> pls check your cpu. the board not support p4 prescott cpu
> Thank & Best Regards
> JETWAY FAE Support Team
> ===========================
> Now I've been using this combination of CPU and m/b for over two years
-
> and i believe without any problem until i swapped PSUs.
> What's a prescott CPU tho'?  I'm using an Intel Pentium 4 2.4ghz for
the
> 533mhz system bus which as far as i can see my m/b supports.
> The manual says:
> CPU Socket - support Intel Pentium 4 478 pin
>            - support 1.5G~2.4G 400/533 MHz F.S.B. 478 Pin Pentium 4
> processor
> I'm okay aren't I??


Prescott is the 90nm version of the P4 (Northwood, the previous version
was on a 130nm process).

Prescott consumes more power than Northwood, and some motherboards don't
have a beefy enough power supply (the one that generates the ~1-2V the
cpu runs off of) to work with a Prescott cpu (at least not in the
extreme conditions the motherboard will be certified to operate in).

Windows "System Information" should tell you which one you have.

That wouldn't explain why it works with your old cpu though, so I
suspect you have a Northwood...

Jim