The slots are:
2 x PCIe x16 (blue @ x16 mode, black @ x4 or x1 mode) supports CrossFire Technology
1 x PCIe x1
3 x PCI
I want to choose video cards for mining. Here are my questions:
1. Please advise which videocards I can use here. Are all modern videocards like recent Radeons 5XXX/6XXX supported by this motherboard?
2. I see there are 3 different PCIe slots, can I use all of them at a maximum GPU speed?
3. Which video card meets the best performance/price ratio?
4. Should I set up cross-fire between the cards or it does not make sense for mining?
5. I see that the same video card from different vendors has too different prices. For example, Radeon 5850 from XFX ATI costs $585 whereas from Sapphire costs just $160 (http://www.amazon.com/s/ref=nb_sb_ss_i_4_12?url=search-alias%3Daps&field-keywords=radeon+5850
). Is there any difference in mining speed between vendors? Should I pay more or not?
1) Any video pci-e compliant video card. Even the pcie 16x rev 2.0.
2) You can use them all at full speed for mining. I wouldn't suggest gaming with all 3.
3) 5770 is the best $/mhs. But go with the 58xx or 6950's (with or without bios mod to possibly unlock extra shaders). I keep picking up used 5870's for $200, and that is a $2 per mh/s. That's what you should shoot for, 2 to 1. Don't get 6850's. For the extra 30, pick up at 6950, it achieves nearly same performance as the pricier 5870.
4)Do not set up cross fire. Use dummy plugs, I see you are running linux, you might not have to use dummy plugs.
5) Same cards from different vendors WILL NOT matter. What will matter is if the card comes with a factory overclock and what style cooler. Try to pick up the reference centrifugal coolers, these exhaust the air out the back of the case, and makes it much better for keeping the heat from recycling in the case.
Anything else, PM me.