P4 2.4c overclocking potential

[jb20thae]

I'm new to overclocking and recently found out about the overclocking potential of the p4 2.4c. Now, I have a p4 2.4 (800fsb, 512) but don't know if it's the 'c' version. I thought these models were all 'c's. What's the easiest way to tell without unmounting my heatsink, will cpuid tell me?

 

[Hacp]

Yes that processor is the C version

 

[stevty2889]

Yep, the C versions are the 800mhz FSB 512K cache with hyperthreading. I had a 2.4c, that ran at 3.1ghz.

 

[jb20thae]

Ok, cool. I'm using an asus p4p800se... anyone know if i can lock agp and pci independently (i'm away from my comp)? How do I go about pushing the processor, just start increassing the freq (prob real general question)?

 

[stevty2889]

The AGP and PCI are locked by default on that board. Thats a great motherboard by the way, I used the P4P800 for overclocking my 2.4c. Yes, you increase the front side bus to overclock the CPU. You should probably use a memory divider, so that your memory isn't limiting your overclock. Just increase the FSB slowly, like 5mhz at a time. You might need to up the vcore a little bit as you get higher speeds, I wouldn't go higher than 1.6v on a northwood. Just look around in the forums, there are plenty of good overclocking guides.

 

[Hacp]

I would suggest that you get some ram that has headroom also. Overclocking non 1:1 on a pentium Processor will kill the performance of the overclock.

 

[jb20thae]

You mean when the memory can't keep up with the bus speed? I'm using Corsair VS in dual-channel, fbow. Stable but not good for oc'ing?

 

[n7]

Those 2.4Cs often hit over 3.0 GHz

Good RAM = important for P4s though.

 

[secretanchitman]

yup, im using a P4P800 with my 2.4C. i hit 3.4Ghz using the 5:4 ratio. also running 2x256 of geil dual-channel (PC4000 though) ram at 283FSB. usually, intels run best at 1:1, but if you want the most out of yours, i'd go either 5:4 250fsb+ or 1:1 250FSB.

if you want to get a higher OC, apparently a new heatsink makes a world of a difference, as well as "higher rated" ram. P4P800 boards have a major drooping problem though. check out ocforums.com and their motherboard section, as there are a lot of P4P800 owners there, including me.

 

[Geomagick]

When I had my P4 2.4C I used PC4400 with it. This enables you to run at 1:1 at just about any FSB the chip can handle. Later I used a Vapochill and a 2.8E which ran at a 275FSB 1:1.

Ahh memories......

 

[jb20thae]

I bumped the machine 5% using mobo presets and things seemed fine. When I go beyond that I get blue screens or the machine won't boot. If I manually adjust frequency, I can't get beyond about 5%. Also, it looks like the agp speed defaults to auto. Is it the other components on the board that can't take the speed bump (memory or expansion slots)? I'll look around a little more.

 

[Shenkoa]

Originally posted by: jb20thae
Ok, cool. I'm using an asus p4p800se... anyone know if i can lock agp and pci independently (i'm away from my comp)? How do I go about pushing the processor, just start increassing the freq (prob real general question)?

I used to own that board, its a killer board for overclocking.

 

[x2plasma]

My server has a P4 2.4C in it, currently at 3.2Ghz, 1:1 ratio on the RAM (good low latency Corsair 2x512 that isn't all that low anymore with such a high overclock ). Definately a good overclocking chip. P4P800 Deluxe board btw.

 

[fliguy84]

mine runs @ 275MHz 1:1 with pqi pc4000 ram (with cpu voltage in Auto ). running it on p4p800 standard though. some tips for oc: make sure agp/pci clock is locked at 66MHz/33MHz and DDR voltage set to max if you want to bring out your ram potential