Overclocking HD7950 + Problems

[Kyzer]

Since I could, I went over the official OC limits and I've been having some problems (driver crashing, random blue lines filling screen when playing back video)

 

Is it the voltage or the extended OC?

1120/1520mhz

[Starelementpoke]

1 minute ago, Kyzer said:

Since I could, I went over the official OC limits and I've been having some problems (driver crashing, random blue lines filling screen when playing back video)

 

Is it the voltage or the extended OC?

1120/1520mhz

Did you oc the memory?

[Kyzer]

2 minutes ago, Starelementpoke said:

Did you oc the memory?

That's what the second number meant

 

[Kyzer]

5 minutes ago, Starelementpoke said:

Did you oc the memory?

1120 core / 1520 memory (+20mhz over the official limits) it was at 1.2v and 1.7v

[867Yukon]

Sapphire HD7950 3GB Dual X was my old card, i ran it at 1190/1475 with 20% power and voltage was at 1.23 I think. Ran awesome in games but i did get some artifacts in heaven and firestrike. Was paired with athlon x4 860k. When mine would crash it would almost always be a pure red screen needing a reboot or the whole screen would fill with different color squares. Once i lowered my voltage to around 1.20 it seemed to work alot better. So IMO its voltage, but Im not 100% sure.

[Starelementpoke]

4 minutes ago, Kyzer said:

That's what the second number meant

 

Try setting the memory clock back to stock and tell me what happens.

[Kyzer]

Just now, Starelementpoke said:

Try setting the memory clock back to stock and tell me what happens.

I set it back to 1500 at 1.68v (which I know was stable) and is stable

[Starelementpoke]

1 minute ago, Kyzer said:

I set it back to 1500 at 1.68v (which I know was stable) and is stable

Hm, and core clock is still the same?

[Kyzer]

12 minutes ago, Starelementpoke said:

Hm, and core clock is still the same?

I don't think it likes it's memory above 1500MHz.

I got the core up to 1160, I could go farther if I went above 1.31v

 

I'm gonna stop there though, it keeps freezing the system if I go to high without voltage (reset button doesn't even respond).

[Starelementpoke]

27 minutes ago, Kyzer said:

I don't think it likes it's memory above 1500MHz.

I got the core up to 1160, I could go farther if I went above 1.31v

 

I'm gonna stop there though, it keeps freezing the system if I go to high without voltage (reset button doesn't even respond).

Yeah, my 7950 didn´t have any memory oc.

[xAcid9]

1.3v+ and only 1120mhz? Not worth the extra voltage imo and your mem volt is pretty high as well. Unless you're on full block WC i wouldn't recommend to use it 24/7.