I was just reading CPU magazine. 460/800 on 9800 Pro!

[VIAN]

anyone have that kind of OC.

With a volt mod to the 9800 Pro and some extra cooling, an orb and some RAMsinks with AS adhesive did wonders. Where most OCs at stock voltage are at 420/360 or similar, you can attain insane clock speeds with the volt mod. Any of you want to try it?

 

[Ackmed]

I had 480/420 with a Powercolor, no voltmod. It was slower than at 480/380 though, because the memory was articating very badly.. it looked like Tempest. I took care of the memory problem, and got it stable at 420Mhz, with no artifacts. This was over a year ago. 7k at 480/380, 7.8k at 480/420.

edit, had my speeds wrong.

 

[Manzelle]

Originally posted by: VIAN
anyone have that kind of OC.

With a volt mod to the 9800 Pro and some extra cooling, an orb and some RAMsinks with AS adhesive did wonders. Where most OCs at stock voltage are at 420/360 or similar, you can attain insane clock speeds with the volt mod. Any of you want to try it?

441/792 is the best I can do with Doom3 - and I assume everything else...

 

[Gurck]

Not gonna bother, too much hassle for too little gain imo. Farthest I go is to OC my card very minorly. No aftermarket gpu / ram cooling for me.

 

[Lonyo]

I used to have 440, but now it's down to 400 :/
Non-pro though. RAM is Infineon, so not worth mentioning.

 

[Jeff7181]

My 9800 Pro won't overclock more than 5 MHz before I get little sparklies in Doom 3... and that's with Arctic Silver 5 and a VGA Silencer.

 

[Manzelle]

Originally posted by: Jeff7181
My 9800 Pro won't overclock more than 5 MHz before I get little sparklies in Doom 3... and that's with Arctic Silver 5 and a VGA Silencer.

That sucks...

 

[apoppin]

Originally posted by: Manzelle

Originally posted by: Jeff7181
My 9800 Pro won't overclock more than 5 MHz before I get little sparklies in Doom 3... and that's with Arctic Silver 5 and a VGA Silencer.

That sucks...

i had the same problem with my 9800256/256>XT . . . cooling the case further and dropping the Radeon's core below 60 C solved that.

You might also try using ATI tool to play with the O/C . . . sometimes the memory is more limited, sometimes the core . . .

 

[Jeff7181]

Originally posted by: apoppin

Originally posted by: Manzelle

Originally posted by: Jeff7181
My 9800 Pro won't overclock more than 5 MHz before I get little sparklies in Doom 3... and that's with Arctic Silver 5 and a VGA Silencer.

That sucks...

i had the same problem with my 9800256/256>XT . . . cooling the case further and dropping the Radeon's core below 60 C solved that.

You might also try using ATI tool to play with the O/C . . . sometimes the memory is more limited, sometimes the core . . .

My case temp is 21 degrees C...

My 9800 Pro is the 128 MB model, and is definately an R350 core (looked at the markings when I installed the VGA Silencer)

Using a temperature probe to measure the temp of the base of the VGA silencer, it reads 43 degrees C... so figure 5-10 degrees higher for the actual core at most...

I wonder if it has anything to do with me having fastwrites and sideband addressing enabled? That shouldn't cause the white sparklies when overclocking the GPU should it?

 

[apoppin]

Originally posted by: Jeff7181

Originally posted by: apoppin

Originally posted by: Manzelle

Originally posted by: Jeff7181
My 9800 Pro won't overclock more than 5 MHz before I get little sparklies in Doom 3... and that's with Arctic Silver 5 and a VGA Silencer.

That sucks...

i had the same problem with my 9800256/256>XT . . . cooling the case further and dropping the Radeon's core below 60 C solved that.

You might also try using ATI tool to play with the O/C . . . sometimes the memory is more limited, sometimes the core . . .

My case temp is 21 degrees C...

My 9800 Pro is the 128 MB model, and is definately an R350 core (looked at the markings when I installed the VGA Silencer)

Using a temperature probe to measure the temp of the base of the VGA silencer, it reads 43 degrees C... so figure 5-10 degrees higher for the actual core at most...

I wonder if it has anything to do with me having fastwrites and sideband addressing enabled? That shouldn't cause the white sparklies when overclocking the GPU should it?

some r350s are pretty limited (so are some 360s) in their ability to O/C . . . sometimes it's just a matter of bad luck.

You case is nice and chilly . . . mine is usually in ths 80s F and 90s F in Summer (warm room); i actually measure temps off the thermal diode and mine will NOT O/C unlesss the core is below 60 C (which is no big deal since it is fast enough for any game at 'my' resolutions - yet).

I DISable fast writes (just looked, it is "on"; oops) and V-synch (usually), anyway . . . but i don't think it has anything to do with artifacting.