overclocking a stock p4 640 ht

[idiotec]

I would bet that you have a very good chance of getting to 3.6Ghz on stock voltage. That would be 225x16 and put your RAM at DDR2-563, which should also be able to handle that speed at stock vdimm/timings. Of course this is just from my personal experience and every chip/RAM/mobo is different so you never know.

Just keep increasing the FSB in about 5Mhz increments testing stability after each and see how far it will go.

 

[neweyedeya18]

currently at 3.41ghz gonna stay there until swap out my heatsink

 

[vaderpro]

Nice. I put my prescott to 3.52 without raising voltages. I have upgraded the heatsink, cause these things run hot normally.

 

[cedjunior]

Currently running @ 3.6GHz now. I'm happy with that, I think I'll stay there.