I'm trying to bring the speed up to 2 ghz, but im a bit new at this so i'm stuck at the moment.

I've so far only upped the FSB, this is done inside the bios and i can clock it to 1.9ghz before windows fails to boot. But when i do a burn in, the 12v+ rail drops to like 7! I think i need a new psu, the present one came wif the case.

I know that i can raise the vcore for more stability, however i can only do it when i raise the FSB using the bios, if i do it using the jumpers i dont get that option inside the bios anymore.

Another thing that worries me is how high can u set the PCI and AGP frequency? I cant seem to find an option inside the bios to lock down the PCI frequency.

Any help/advice is most welcome
My mobo is the asus p4t

I will check on the PCI/AGP divider in a moment, but for now, your doing all that can be done.

And go staringly with the Vcore adjustment, guys have been reporting a lot of short live CPUs do to Vcore settings above 1.75v.

Just get a nice little OC, and don't hurt yourself

Oh, and the PCI and AGP bus and what they can handle is completely an individual thing as every mobo is different and it will also depend on how many and what those expansion cards can take.

Edit: OK, I checked out the P4T manual, (fun in Japaneese), and I did not find a PCI / AGP divider setting.
Now, I let me make sure of something before I contine, your CPU is a 1.7gig "Wilamette" right ? Socket 423 ?
If so, you probably don't have to worry about it as you won't get so high on the FSB that it matters much. If I am right the you will top out at around 118 FSB which is about 40 / 80 mhz PCI / AGP. That's 30% out of spec but they have reasonably good tolarances and may handle it.

Luck.

Second Edit: If you do have a Socket 423 chip, the a multi of 17 X 118 would be 2.0 Gig.

yeah its a socket 423 so i aint expecting much, the weird thing about the vcore is that in the bios its set at 1.75v, but using asus probe 2 when i'm in windows it shows ~1.7v... so which one is right?

hey thanks icpiper you're always helpin me out...

Hey Prozac son, I have a 478 P4 1.7 Soon to be replaced with a northwood; anyway maximum speed for a williamette 1.6, 1.7, 1.8 or 1.9ghz P4 is 1950mhz, any higher overclocking will result in instabiality, intel later made a 2ghz williamette but it was just slightly modified to run at that speed, you cannot overclock 2ghz williamette p4's anyway.
The core is limited, 1900mhz is good for a 423, nothing further you can do, unless you get a 478 pin to 423 pin converter and buy a northwood.

Yep got the same chip here in the UT Server and It Is very very limited in overclock, Using the Abit TH7 Raid and if you get 1900 MHZ your doing damn good. As 200 Mhz overclocks on Williamettes are the same as 600 Mhz Oc's they are rare!!
Sorry to burt your bubble. But this is why before the AMD XP series came out and this p4 was launched everyone was yelling "SUCKS" at Intel. However I love my little 423 and the Rambus, memory. Shes got a hell of a bandwidth serving games and anything that takes a fat ass pipeline!!!
DW