If you insist on overclocking your rather expensive video card, keep this in mind:
The design of the RADEON 9800 XT board is an extreme departure from the RADEON 9800 PRO, as you no doubt can see in our pictures. A considerable amount of the boards circuitry has been replaced with higher quality components -- the most notable example being the voltage regulator modules. ATI has redesigned the board for operation at higher clock speeds; weve been told that the parts have been qualified for higher power and consequently to take more heat.
That was part of a review for the 9800 XT.
Ok, look. No matter how much you overclock your Radeon 9800 Pro, it is NOT an XT.
The components are not identical.
Besides that, have you ever looked at the benchmark scores for the XT?
The increase in performance is negligible.
The only time there is a significant increase in FPS, is where the frames per second are already in the hundreds, and therefore irrelevant.
You going to risk ruining your $250-300 card for 5 more frames per second?
I have a better idea. Don't.
NZXT Guardian Case with Thermaltake PurePower 420w
FIC AU13 motherboard
AMD Athlon XP 2600+ 333FSB (Barton) with Thermaltake Silent Boost HSF
WDC 80Gb 8Mb cache 7200rpm
512Mb Kingston Dual-channel PC3200
MCP-T SoundStorm audio (integrated)
ATi Radeon 9800 Pro (it owned, until x800 and 6800)
Logitech Z-680 5.1 speaker system (integrated Dolby Digital 5.1, DTS, Pro Logic II decoding)
Logitech Cordless Elite Duo keyboard & mouse
Saitek Cyborg Evo joystick
Windows XP Pro SP1 (dont. install. SP2.)