7870 Vcore adjust and monitoring

[fishboyuk]

I'm using Sapphire Trixx to adjust Vcore to get a 1200 1400 OC
and I need to set the Vcore to 1256 to get it stable.

The Vcore monitoring in HWmonitor and speedfan never seems to go above the default 1.225 (actual readout 1.219)

Is this a bug or what? It's weird because adjusting the voltage slider increases stability with core clock increases but the monitoring readout never shows above 1.219

 

[CinderzFTW]

use msi afterburner to overclock your gpu... its more reliable

 

[AlfBaxter]

I'm using Sapphire Trixx to adjust Vcore to get a 1200 1400 OC
and I need to set the Vcore to 1256 to get it stable.

The Vcore monitoring in HWmonitor and speedfan never seems to go above the default 1.225 (actual readout 1.219)

Is this a bug or what? It's weird because adjusting the voltage slider increases stability with core clock increases but the monitoring readout never shows above 1.219

I've noticed exactly the same thing with my MSI 7850. Trixx and GPU tweak never report voltages above 1210, but I know it must be higher because raising to 1250 in AB helps stability. So far only AB reports correct VCore for me.

 

[fishboyuk]

I tried installing MSI AB initially but there was no voltage slider even after unlocking overclocking. Maybe I did something wrong. Guess ill give it another go. I prefer it really, it always worked great with my 4890.

 

[8 Pack]

You have to unlock voltage control in AB's settings. First Tab.

 

[fishboyuk]

You have to unlock voltage control in AB's settings. First Tab.

Thanks, i'm aware of that but maybe i missed it last time around

 

[LateX'Dog]

use msi afterburner to overclock your gpu... its more reliable

This.

I've set my 7970 MSI lightning to 1.2ghz core and 1.5ghz Memory at 1.25v and it runs perfectly.