Wacky Radeon 8500 o/c problem

[mdcomp]

I just got a radeon 8500 and I am now trying to o/c. I have tried a coupl different programs and the same thing happens...if I change anything my screen goes crazy. Like 6 or 7 columns come up all varying in different colors. Whats going on???? Please help me...

 

[mdcomp]

please help me....I am desperate!!!

 

[Violator]

What kind of 8500 is it? Retail or LE? and what are you using to overclock?

 

[PigGuy]

Is that for a mHz or two or are you going from 275 to 310 or something?

 

[mdcomp]

like 1 or 2 mhz. It is retail....

 

[PigGuy]

Yeah, I am stumped.
What are the couple different progs you have used?

 

[mdcomp]

radeonator
r3d
radeon tweaker

Any ideas?

 

[GravY]

if you leave the core at stock speeds, can you overclock the ram without issues?

my vid card would not overclock the core at all.. I was stuck at 275.. but my ram would go to 290 just fine.. I ended up doing a hardware volt mod (no pencil) to my card also changing out the stock fan for a custom fan and ramsinks.. I now can get 297/300 stable with no artifacts.. However some people can go higher with a stock set up.. I just got a bummer card..

I use Powerstrip to do my overclocking..