Author

Topic: second GPU not dedected should i cross fire (Read 541 times)

newbie
Activity: 44
Merit: 0
January 19, 2014, 12:28:56 AM
#7
Try removing the 270 and putting the 290 in its place, is it detected then? If so, then its either the riser or the PCIe slot.
legendary
Activity: 3836
Merit: 4969
Doomed to see the future and unable to prevent it
January 18, 2014, 11:31:23 PM
#6
try a dummy plug.
hero member
Activity: 490
Merit: 500
January 18, 2014, 04:25:08 PM
#5
No crossfire required for mining. Only gaming.

Could be low power. If your graphics card has multiple rails you might have overloaded a rail.



Gator-hex means PSU rather than graphics card but it could well be the problem.

oops. lol yeah. I meant "If PSU has multiple rails"  Embarrassed

Try spreading the load over as many cables as possible.
sr. member
Activity: 252
Merit: 250
January 18, 2014, 01:57:47 PM
#4
No crossfire required for mining. Only gaming.

Could be low power. If your graphics card has multiple rails you might have overloaded a rail.



Gator-hex means PSU rather than graphics card but it could well be the problem.
hero member
Activity: 490
Merit: 500
January 18, 2014, 01:50:31 PM
#3
No crossfire required for mining. Only gaming.

Could be low power. If your graphics card has multiple rails you might have overloaded a rail.

sr. member
Activity: 252
Merit: 250
January 18, 2014, 12:06:34 PM
#2
I have one radeon 270 X and just bought radeon r9 290 but it2s not dedected what could be the reason?

Loads of possible reasons but cross is not the answer

What does cgminer -n return?
sr. member
Activity: 266
Merit: 250
January 18, 2014, 10:33:42 AM
#1
I have one radeon 270 X and just bought radeon r9 290 but it2s not dedected what could be the reason?
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