May I know that if I have P4 506 2.66GHz, can I overclock it?

If yes, how?

My Computer spec :
P4 506 2.66GHz
512 DDR PC3200 Ram
no graphic card and audio card ( graphic already sharing 64MB from Ram)

Thanks.

I am new in overclock, never test before, so I need some detail instruction.

This is my father computer, I do not hope to break in, thanks.

If you can, tell me which combination is the best, which mean overclock to which speed, I am using default Intel Headsink.

This post has been edited by monky91: Oct 26 2006, 10:35 PM

probably u should look for the pin forum...if not ask ur fren to teach u at house more easy...cos u going to deal with bios...

Ok Guys, I need some help now, yesterday, I try to overclock my computer.

I am using Foxconn motherboard, so I use the Bios SuperSpeed setting

I set it to
[manual]
[140 MHz] - [deafult : 133MHz]
[1.55v] - [default : 1.5v]
[Ram : 266MHz ] - [default : 133MHz, if not wrong ]

And Now it is down, so can anyone tell me how to set it back to default setting?

The Bios won't even boot, the screen is black, and the Fan, CPU, HD all running, just that it show red light. How?

Thanks

You can look for motherboard reset bios pin to reset your bios settings. You have to refer to your motherboard's manual for it.

I am using Foxconn P4M800P7MA motherboard,



Can anyone select it out? I mean the reset pin

edit : is it like this ? http://www.teamplayinc.com/Tech/BIOS%20Reset.pdf
Thanks

This post has been edited by monky91: Oct 27 2006, 09:33 AM

it's too small, look in the manual for the CMOS reset jumper....

when I turn it off, change the pin from 1-2 to 2-3, then turn on, or wait a while change back to 1-02 pin then just turn on?

Which one is correct, or neither? Just pull off teh battery?

Yes!!! Thanks, Guys, I have successfully overclocked.

Here is the screenshot

Hey, Guys, if I just overclock till 2.84GHz, it will not shorten too much on the life span of processor right?

Besides, what is the highest but still safe clock for P4 506 2.66GHz

It depends, the 2 main killers in overclocking are heat and voltage. Heat death is not so common these days anymore as processors from Pentium III and Athlon64 onwards have thermal sensors built in which slow down/shut off the processor as it exceeds safe temperatures. However running a processor at above its rated clock AND hotter will shorten its lifespan to some extent, but it will not die overnight as long as the heatsink is properly attached and thermal compound properly applied. Processors are designed to last at very worst 5 years, and possibly 10 years, so chances are overclocking will only reduce it to maybe 3-6years if it runs hot-computer will be obsolete by then.

Voltage on the other hand, will drastically reduce the lifespan of a processor as it is increased. A slight increase will probably drop lifespan a few years, a substantial increase will result in rapid deteoriation of the processor no matter how good your cooling is, many overclockers learned the hard way. Voltage in overclocking is not for the weak hearted-your cooling and power supply must be up to the task and even then unforseen accidents may happen.

Basically, overclocking (regardless of system or component) is consisted of the following steps

Before starting, stabilise system settings like locking PCIE/AGP/PCI clock and setting fsb:RAM clock ratios so that only 1 thing is overclocked at a time.

1. Increase the clock, initially in increments of 10fsb.
2. Quick test (1-3mins) for stability (take your pick of programs to use)
3a. If stable, repeat from step 1.
3b. If not stable, you can either conclude to step 4 or (do at your own risk)increase the voltage by a step and repeat from step 1 but with each time with smaller fsb increments.
4. Revert to the highest stable settings and proceed to step 5 if you're happy with it. Otherwise, revert to the highest stable settings and repeat from step 1 again in 1fsb increments. Either you can leave at the highest stable settings you find from this or reduce the overclock slightly for greater stability and processor lifespan.
5. Test the stability of your overclock by leaving it to stress test overnight

The whole idea is to increase the clock bit by bit until you hit the limit, then (if you dare) increase voltage to increase the limit by a bit and continue increasing the clock. Once you hit the limit of the highest voltage you're willing to use or achieve your overclock target, fine-tune the overclock by reducing it for stability or continue searching for the maximum more precisely in smaller increments. If you need an example, PM me and I'll give you my overclocking account of my P4. The overclocking thinking method I've outlined above applies also to video cards and RAM, although for RAM you also have the option of loosening the RAM timings to increase the overclock. FYI, for your processor many have achieved well above 3GHz with minimal voltage increase, but you will need good cooling and power supply to progress-some have reached almost 4GHz depending on equipment. Btw if you're using a generic power supply you might want to stop now-this processor is power hungry and will likely kill your power supply, other things may be damaged in the process.