7870xt problems with boost

[MrXROK]

Anyone else having problems with boost? My card underclocks to 925mhz when gaming. I have the card clocked to 1200mhz. This happens in tomb raider.

Anyone know how to disable this feature?

 

[kirbyrj]

Is it only TR? When I had mine, I didn't notice it downclocking when I was running benchmarks or anything like that.

 

[MrXROK]

It only happened in TR far as I know. I play BF2 regularly and it clocks accordingly. Strange.

 

[MrXROK]

I just did some checkup and it does in many games. The card throttles to 925mhz every now and then. How do you disable this?

 

[quiktake]

Boost powertune. The clock throttles because of programmed heat constraints. Increasing powertune increases the thermal limit acceptable to the card. Also try working on your case ventilation. Make sure a fan is blowing on the card or pulling air away from the card directly.

 

[MrXROK]

My sapphire card has temp threshold of 75C limit where the card starts throttling to 500. This seems to be a die problem. Before buying this card I had a Powercolor Myst card and that had a threshold of 85C or so but it was too loud.

The sapphire XT with the dual fan keeps it much cooler and less heat in my room so I kept the Sapphire card..