9800 mod problem

[vhco]

When I did the Vgpu mod, I could not even get GPU core speed up to 480 (a lot of artifacts), I even increased the Vgpu to 1.9v.

I have the core overclocked to 470 without vmods.

Cooling is stock but I have one slot fan to draw the air out, one 80mm fan blowing from the side and card cooler(2 x 92mm fans) push the air down from the top.

I have a TweakMonstor's heatsink on the back of the GPU as well.

3DMark2003 6876 3DMarks
http://service.futuremark.com/compare?2k3=897316

3DMark2001 20097 3DMarks
http://service.futuremark.com/compare?2k1=6602766


Here is my system:
AMD AthlonXP 2400+ @ 219FSB x 11 = 2415 Mhz
2 x 256MB PC3200 CosairrXMS DDR (2-2-2-5-1T)
Abit NF7-S nForce2 v1.2
Emermax 465W PSU
ATi Radeon 9800 PRO 128MB @ 470/390
Toshiba 8x DVD ROM
Yamaha 4x4x16 CD-RW
Seagate Cheetah 15K RPM 36GB Ultra160 SCSI
Quantum 10K RPM 18GB Ultra160 SCSI
Adeptec 29160
Windows 2000 SP2

[vic256]

That happens, some cores overclock easily others dont..

I've got a 9800 Pro that I was able to overclock to 440MHz with stock setup.. After the vmod (@1.8V) I couldn't go higher than 470 without artifacts and even with a 500gr cooler with extra fans it got hot as hell...

Soo, my vmod didn't pay off either, I've actually removed the vmod now as it was kinda useless... I think the heat is more a limiting factor with my gpu than voltage is as I'm still able to approach the 470MHz with the additional cooling I installed when I vmodded.