My Intensity Pro HDMI Capture Card is PCIe 1x Spec, I had it in my 2nd PCIe 16x Slot on my old system as the First 1x Slot was under my 8800 GTS's heatsink, and the 2nd one had another Addon Card in it.
Most Mainboard's 2nd/3rd 16x Slot is really only 4x/8x anyway.
On the Asus P8Z68-V Gen3, the Black x16 Slot is really only 4 Lanes (4x). per the Asus Site/Manual, You should be able to use that slot with no problems.
http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z68VGEN3/#specifications
Edited by SkateZilla (04/17/12 10:16 AM)
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Skate Zilla
William B.
HAF922, 700W OCZ, ASRock Fata1ity 990FX Pro,
Corsair H100,AMD FX8350 @ 5.15GHz, 16GB G.SKILL Sniper@DDR2133,
Sapphire DualX HD7950-OC@1.1 GHz Core/6GHz Mem, Creative XFi Fata1ity Platinum Champ.,
ASUS VS248HP 24" LEDx3, 5760x1080(6048x), Turtle Beach Earforce, RCA 5.1 Surround
CH Fighterstick, Pro Throttle, Pro Pedals, Saitek EclipseII
IntensityPro 10-Bit, Kinect For Windows, TrackIR 4 Pro
WD 1.5TB Black SATA3, SG 1TB SATA2, 2x SG 500GB SATA2, 1x SG Ext. 1TB USB3