Quote from: acesun on June 21, 2011, 10:09:29 PM

Hi, these are the slots you should be interested in:

3x PCI-Express 2.0 x16, ignore the x8 and the othe PCI slots.

It basically means you can have up to 3 graphics cards connected to your Motherboard. Your new graphics card will be compatible with any motherboard as long as these PCI-Express 2.0 x16 slots are present.

Keep in mind you will also need a high quality power supply for your computer (750W or more), since these high-end cards require:
1. To be connected to motherboard
2. Have 2 "PCI-E Cables" connected from the Power Supply to your card.

Good luck!

Thanks for replying.

But are you sure the "Gigabyte Radeon HD 6990 4GB" Graphics Card slot is: PCI-Express 2.0 x16 ??
Because i've seen on ebay
( http://cgi.ebay.com/Gigabyte-Radeon-HD-6990-PCIE-4GB-DDR5-Bitcoin-Ready-/270767571412?pt=PCC_Video_TV_Cards&hash=item3f0b0141d4#ht_1392wt_1138 )
something about "Host Interface: PCI Express 2.1 x16"..... so? which is right?