533>400FSB P4 wire trick
 

I want to let my gigabyte 845PE motherboard think my 2.4B 533FSB is actually a 100FSB proc, so I can use the 3:4 mem divider.

Does anyone knows how?

?? I didn't know that was possible

why do you want to do this, please share :)

Re: 533>400FSB P4 wire trick
 

The 2.4B i've got here doesn't reach 160mhz FSB (400mem 4:5 divider) with the stock intel cooler. If i could trick it into a 400FSB proc, i could run it at 150FSB and 200mhz mem (3:4).

I've got a dozen PC3200 sticks, and i want to test them both on an intel and AMD platform. :)

uhm you are talking about unlocking/changing the multiplier on a P4 ... :)

No, i'm just talking about the default FSB of the proc. 400 instead of 533, multi stays the same.

I know it's possible. And there's a guide on xtreme...

if multi stays the same you can just drop the FSB to 100 :p

No, underclocking in the bios doesn't make the 3:4 mem divider available. Only if the mobo recognizes the proc as a 100FSB one, i can select 3:4.

didn't knew that

i'll remeber that, btw where's the guide to do it

we are looking for it :)
only found wire-trick that will change the voltage.. are you sure that you can the FSB ?

Aha, found it!

thenakedreview

Thx to glenn@B2OC