Yes, there is something 'special' about 200MHz. The KT600 chip-set used on
the board in question does not have locked AGP and PCI busses, therefore the
only way to keep the PCI and AGP in spec is to run at the 'official' FSB bus
speeds i.e. 100, 133, 166 or 200MHz. However, a +/- 10% variation around the
specified speed, with any luck, is unlikely to cause too many problems.

A good XP2600+ Barton will do 200MHz no problem. My old one did 220MHz on
air cooling.
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"Humja" wrote in message
...

"BigBadger" wrote in message
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Set the FSB to 200MHz... increase the Vcore to 1.75V... play about with
the
Vcore to find the minimum you need for stability, test stability with
Prime95. Keep an eye on core temp, about 60C is the max under load you
should be seeing.
You will need DDR400 (PC3200) memory to run 200MHz FSB with synchronised
memory clock.

Isn't jumping to 200MHz a bit too big?

Is there something special about 200MHz? Can it be 199MHz?