first off u'll need a board/chipset that can do 200FSB and also with enuff agp/pci divisions to keep your devices close or in spec when running at 200Mhz FSB! and mem that can do sdramPC200 or ddr400 or rdram1600...since ddr is the only mem i've seen do 200FSBx2 (ddr400) you'd have to go with a p4+DDR combo and ofcourse...
....the rarest find...
the luckiest p4 chip to come out of a fab..
i'm currnetly at 2820MHz with my p4 1.6a thats a 75%+ overclcock, i've gotten it to post at 3Ghz+ (188FSB) but will blue screen upon loading windows....need to burn it in a bit more cause i just want to get a screen shot at that speed and a new PSU would help too since i'm currently using a 300watt sparkle!
i had a celeron 566 that would do 1050, thats nearly 190% overclocked... but it just_wouldnt_do 1132 for a double clock speed... i think some of them did though, look at the cpu database at overclockers.com
it seems that low-speed chips of a new generation are always the champion overclockers (like my brand spanking new celeron 1.0A @ 1333)
My celeron 667 would do 1200 under normal load or 1121 with anything you could throw at it. I had it cooled with an 80 watt pelt, a dangerden cube radiator, a Danner 1.9 pump and a Maze2 block. I was using 2-2.1v so it would still create a lot of heat. If I had tried a bigger peltier 1200 or more would have worked fine. I also had a duron 600 with streight water cooling I got up to 1200 but it took 2.33v.
well i found out something a cell 700 is not capable of double.
it won't even boot up with a bus over 105 and it barely boots with 103 but is stable at 100 (factory 66) i am gona try a couple things and try and get it to boot at 105 or more but i don't think its gona happen
I had a P3 667 cCo-stepping not a P3 500.
But it's nearly the same besides the newer stepping of my chip. It has the the same multiplier so you need 200 MHz FSB on both chips to get them to 1 GHz.
I miss my P3 so much. Why did it have to die due to overvoltage. That damned Abit BE6-II that I wanted to test the chip on, had a bad voltage regulator. I could RMA the board, but unfortunately not my P III 667 MHz (Lucky as I am I could sell the chip on eBay for around 35$)
But now I have a great chip again. It won't hit 200 MHz FSB(2GHz ), but 1500 MHz at default isn't bad either.
Chips that can run at two times their default speed are very rare. Only the very best can stand such a high Overclock and you'll need at least watercooling to reach these OC's.