Northwood P4 OC question

[stardrek]

I have a Northwood P4 2.8hgz, revision C1, in an Asus P4P800-E Deluxe motherboard. I OCed it to 3.2ghz with a 153mhz FSB (the multiplier is 21 in case anyone wanted to know). I have it running with a voltage of 1.65v and a load temp of around 51C and an idle of about 36C.

What is a safe voltage I can get this running with? I have heard of plenty of people getting these over 3.6Ghz but I?m not sure at what voltage they used.

If I go over 153mhz FSB, with a voltage of 1.65v, it becomes unstable and won?t pass any stress tests. The stock voltage is 1.525v for anyone interested.

 

[stevty2889]

Northwoods tend to top out around 3.4ghz, unless you have one of the 30 cappers. I wouldn't go any higher than 1.65. Are you using a mem divider? What memory are you using? Tried upping the chipset voltage a bit?

 

[stardrek]

I have not tried uping the chipset voltage. I am using Kingston Hyper-X 4000 (DDR500) memory. The motherboad has a lock for the RAM running at 333mhz and is running at std voltage, but it should be able to coup with much higher if desired. The chipset, which is an Intel 865PE chipset runs at about 45C under full load, after 4 hours of full load I should say. I'm not sure if I can push that any further. That is the temp it gives for the MB temp, so I'm guessing that means chipset temp.

What do you mean by 30 cappers?

Edit: According to CPU-Z the FSBRAM is 4:5

 

[stardrek]

Anyone else got any idea on this one? I was hoping to try and do this tonight.