Overclocking memory on a 5770

[SubScape]

I used Auto-Tune in CCC and it overclocked my 5770 to 950Mhz core but left the memory clock the same (1200), I wondered why it didn't overclock the memory so I overclocked it manually by 5Mhz, which instantly caused the screen to go black and my speakers to buzz really loud, so did a hard shutdown, when windows booted up again and I'd logged on it said it'd blue screened an everything went to high contrast, just wondered why such a small overclock did that (everything's fine now btw)

 

[Cleeecooo]

Its probably because the card is unstabke. Try givib it some more voltage

 

[SubScape]

The thing is when I tried to overclock the memory, the card was at stock, so there was no core clock overclock to cause instability

 

[SubScape]

Also how would I go about upping voltage? No option in CCC or Afterburner

 

[tummelv]

Yeah, I wondered this myself. In MSI afterburner I have no value for the voltage so I cannot change it.

 

[timciren]

What version of Afterburner do you have ?
In mine you have to tick the safety properties in settings before volts can be modified

 

[Avathar77]

You can unlock the voltage control in settings

 

[SubScape]

Even after unlocking in settings (Afterburner) it still won't let me

 

[SubScape]

Small thread revival, would still be interested if anyone had any knowledge on this.

 

[MoodyB]

Afterburner won't allow voltage control on all cards. It depends what type of voltage control chip is being used on the card. Some allow software control. Some don't.

If it's not working with Afterburner, then try Sapphire Trixxx 3.02 public beta ( google it ).

If that doesn't work then I think you're out of luck.

And afaik, the voltage tweak only applies to the gpu vcore. You can't increase the voltage applied to the memory.

I think the only exceptions to that are some of the MSI gfx cards, but I'm not 100% sure about that