P4g8X and P4 800fsb

[Dene Wilby]

Hi,

Does anyone know if I can use a Pentium 4 with 800fsb on the ASUS P4G8X

Cheers

Dene

 

[Paul]

Hi,

Does anyone know if I can use a Pentium 4 with 800fsb on the ASUS P4G8X

Cheers

Dene

Official support is here - looks like 400/533 processors, and up to
3.06/533 are listed:

http://www.asus.com.tw/support/cpusupport/cpusupport.aspx

You could check over on the abxzone.com forums and see if anyone has
tried an FSB800. For example, a P4PE can take a FSB800 and run it
at the full rate, but it cannot be overclocked any further than that.
While some Intel chipsets seem to be able to barely make it to FSB800,
there are some others that have FSB640 or so as their max, so cannot
make good economic use of the capabilities of a FSB800 processor. For
those boards, purchasing a 533 processor is the way to go (and
overclocking to the limits of the chipset).

HTH,
Paul

 

[Dene Wilby]

Official support is here - looks like 400/533 processors, and up to
3.06/533 are listed:

http://www.asus.com.tw/support/cpusupport/cpusupport.aspx

You could check over on the abxzone.com forums and see if anyone has
tried an FSB800. For example, a P4PE can take a FSB800 and run it
at the full rate, but it cannot be overclocked any further than that.
While some Intel chipsets seem to be able to barely make it to FSB800,
there are some others that have FSB640 or so as their max, so cannot
make good economic use of the capabilities of a FSB800 processor. For
those boards, purchasing a 533 processor is the way to go (and
overclocking to the limits of the chipset).

HTH,
Paul

Thanks Paul, i'll have a look over at the website you mentioned. Will
probably play it on the safe side and get a 533FSB CPU.

Cheers mate

Dene

 

[Paul]

Thanks Paul, i'll have a look over at the website you mentioned. Will
probably play it on the safe side and get a 533FSB CPU.

Cheers mate

Dene

There is an interesting thread here. FSB clocks vary from 180 to 222MHz
or so. The 222MHz was reached by doing a bunch of volt mods, so
most likely your P4-C will end up at slightly less than 200MHz.

http://www.abxzone.com/forums/showthread.php?threadid=34546

There are a bunch of hints in the thread, including using a tweaked
BIOS, WPCREDIT and the like. In the stock BIOS, the manual RAM timings
are ignored above a certain level of overclock, so the BIOS uses some
fixed values instead. That it the reason for the tweaked BIOS. Also,
the PCI/AGP lock needs to be played with as well (only important for
non-multiple-of-33/66 FSB frequency values).

Getting a P4-C to 200MHz on the P4G8X should be an interesting and
educational experience

Paul