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Topic: Dual GPU mining without corssfire bridge - howishot? (2x5770) (Read 3360 times)

sr. member
Activity: 371
Merit: 250
Oh, oops, could a mod move this to technical support please? Thanks! :p
sr. member
Activity: 371
Merit: 250
In addition, it does have an effect - second display seen by windows.

Just CCC doesn't see the card, and phoenix sees no new devices and has the same hashrate. ;S

edit: And even more strangely, I see only one 5770 in device manager, and my BIOS does not see the card. So I've no idea how it knows it has a second card.

Is my second PCIE slot broken?

RMA time? D;
sr. member
Activity: 371
Merit: 250
Dummy plug constructed and connected - no effecty... ;s?
sr. member
Activity: 303
Merit: 250
I have just tried again, connected a DVI to VGA adapter to it, does that make it believe a monitor is connected?

I have tested both cards in slot 1, alone, and they work when there.

If both cards show up when another monitor is connected to the second GPU, then it's working.  You can work around this by using a dummy plug.  More info can be found here.
sr. member
Activity: 371
Merit: 250
I have just tried again, connected a DVI to VGA adapter to it, does that make it believe a monitor is connected?

I have tested both cards in slot 1, alone, and they work when there.
newbie
Activity: 50
Merit: 0
Uninstall anything AMD related and run driver sweeper. More often than not, it fixes any graphics card related issues I have. Did the card even show in device manager? If you want to get as much as possible out of the card, you're going to want to get a dummy plug or a 2nd display.
legendary
Activity: 1526
Merit: 1002
Waves | 3PHMaGNeTJfqFfD4xuctgKdoxLX188QM8na
I tried just installing the second card, no luck, shall I need to wait for my bridge cable to arrive? Sad

Do you have a monitor attached to the second GPU?
sr. member
Activity: 371
Merit: 250
Yes, unfortunately. I've been playing starcraf 2 again recently, and doing less coding, so my multiboot seems rahter useless just now! Tongue

I guess I should just try again?
newbie
Activity: 50
Merit: 0
Shouldn't need a bridge to run both cards independently, I think you only need it if you're going to actually be using CrossfireX. Are you using Windows?
sr. member
Activity: 371
Merit: 250
I tried just installing the second card, no luck, shall I need to wait for my bridge cable to arrive? Sad
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