overclock

  • Thread starter Thread starter D.M.
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D.M.

Anyone know any good settings for overclocking a p4 3.2 i have
watercooling and ocz 4400 ram at 550 mhz thanks
 
"D.M." said:
Anyone know any good settings for overclocking a p4 3.2 i have
watercooling and ocz 4400 ram at 550 mhz thanks
Click to expand...

Look up your processor here:

cpudatabase.com

Pick some entries that have water cooling or are
representative of your hardware.

Say the 3.2GHz will do 4.0Ghz. That is a 25% overclock.
Raise FSB from 200 to 250. Leave the RAM setting in the
BIOS at 400, and the RAM will actually be running at
400*250/200 = DDR500. You'll probably end up leaving
the RAM at 3-4-4-8, as I doubt it can be tightened up
to CAS2.5 . It might not even overclock that far, as
there are no guarantees. Your ram will need 2.6 to 2.8V
applied to it - do a Google search to see if anyone has
a good starting value for you to try (or consult the
datasheet from the manufacturer).

While you can punish your processor by raising Vcore,
check the datasheet for the processor to see what the
maximum voltage is. Don't go all the way to the max
value, staying maybe 0.1V on the low side of max.
http://developer.intel.com is a good place to start.

If you have a P4P800 board, they don't like high 1:1
overclocking, and you will see video artifacts on the
screen under the conditions mentioned above. For such
a board, you need to run 5:4, in which case your BIOS
RAM setting will be DDR333 (actual DDR320) and the
RAM runs at 320*250/200 = DDR400. You might be able to
tighten CAS to 2.5 if you end up running the RAM that
slow.

You will need many experiments to find stable and
aggressive settings. Each time, the BIOS will complain
about being corrupted, when it is not. Simply use the
clear CMOS procedure if this happens. Redo all your
settings etc. (I got sick of that after doing only
one experiment - hope you are more persistent :-)
Do not boot into Windows, until you can pass memtest86
on a floppy diskette, for a pass or two. No sense corrupting
a Windows install, unless you've set up a virgin
disk for just this purpose. I'd keep only one
disk and a CDROM connected during the experiments, just
to prevent any accidents. The worst that could happen to
the disk, is you'll need to reformat it.

Paul
 
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