In article <(E-Mail Removed)>,
(E-Mail Removed) wrote:
> Hi everybody,
>
> I'am new in this group and desperately searching for information about
> Prescott and P4T533. Is there anybody out there who has tried to get a
> new Prescott CPU working with the P4T533 (notC) mainboard. I'v got the
> latest board revision (1.03) with the latest BIOS 1007.002. I know that
> ASUS does not support this officially but maybe someone has tried.
>
> I would be pleased if somebody could answer.
>
> Thanx in advance
> Stephan
Was the P4T533 designed, when details of the Prescott were known ?
Were any pinout differences taken into account, or provisions
made for the lower step size of the voltage regulator ? Does the
BIOS understand a Prescott when it finds one ? Those will
be some of the barriers to using a Prescott.
I cannot see the voltage regulator chip on that motherboard.
It could be the chip hidden by the plastic retention bracket
around the processor socket. If you research that regulator,
you might get some idea whether it was intended for the
Prescott or not. Your regulator is two phase, and imagine
how much current that Prescott would be sucking per phase -
look at a Prescott-supporting board and see how many
phases it uses.
http://groups.google.ca/group/alt.co...fe756f951292c1
If someone has done this, it would surely be an achievement.
And to ask another question - have you ever heard of
a Prescott working in a non "Prescott ready" motherboard ?
http://web.archive.org/web/200410150...4/20040202.htm
I just looked at the datasheet for a Prescott and it says:
"Signal Type Description
BOOTSELECT Input This input is required to determine whether
the processor is installed in a platform that
supports the processor. The processor will not
operate if this pin is low. This input has a
weak internal pullup."
Your P4T533 motherboard is likely grounding this pin, and
the processor knows it is not supposed to run.
Paul
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