2 7590s and 1 loud and hot

[Igotcha]

Hi,

at the moment I have 2 Sapphire 7950 in my rig, third card is on the way.

Both cards run in PCI-E 3.0 x 16 @x1 2.0 slots with non powered riser cables.

The card on the first slot was from the start louder and hotter than the second card and the air exhaust is extreme related to the other card.

I use cgminer with these settings

-I 13 --auto-gpu --auto-fan --temp-target 80 --gpu-fan 40-90 --gpu-engine 1100 --gpu-memdiff -150

In cgminer both cards run at around 580Mh/s and with 78-80°.

Should I resend and exchange the one card?

[1715190449]

1715190449

[1715190449]

1715190449

[greaterninja]

for 2 x 7950 sapphire 580mh/s seems good enough at 78-80c

my 2 x powercolor 7950 run 540+mh each ~78-85c

[redtwitz]

How are the cards mounted? How big is the distance between them? Did you try interchanging the cards' locations?

[Igotcha]

How are the cards mounted? How big is the distance between them? Did you try interchanging the cards' locations?

The cards are mounted sideways with a 10cm space. That should be enough I think.