Help with 6870 CF

[sl4y3r]

Hi,

So over the weekend I added a 2nd 6870 to my system. It was my first CF attempt.

But the results were simply horrible in all games ( Crysis 2, DiRT 3, Max Payne 3, F1 2011) EXCEPT DiRT Showdown.

1)Dirt Showdown
Singe card 36 Avg
CFX 59

2)Crysis 2
Single card 50
CFX Avg 35-40

3)F1 2011
Single - 50
CFX 47~

4)Dirt 3
Single - 47
CFX 44

AMD x6 1055T @ 3.7
8gb Vengeance
MSI - 890GX - GM65
CARD 1- 1GB HIS 6870(Stock Clock)@8x
CARD -2 1GB Sapphire 6870(Stock Clock) @8x
CM GX650 PSU

Top video card to Yamaha 467 AVR Via HMDI >> AVR to 55" TV(1080p) via HDMI

I've tried 12.2 / 12.7

Fresh OS install on different HDD.

Vsync On / Off still no scaling.

Strange thing is when I Run my 22" LG (1650 x 1050) to Top Video card via DVI, No other output in use, all games scale(Except F1, but that seems to be a game issue)

Any help would be greaty appreciated

 

[faxfan]

Have you monitored the cards to see if the GPU is being utilised? GPU-Z and enable logging on the "Sensors" tab (make sure you select different cards on the first tab).

 

[sl4y3r]

The GPU is being used some game 99% on Each GPU , some 100 on 1 and 50~60 on the other.

But why does it scale only over DVI and not when I have it on HDMI to My AVR ?(AVR to TV)