Here are my specs and for my power supply consumption I would talk to the manufactuers of my computer, also could you list the parts I would need.  Ive never bridged before but I have installed a Nvidea GPU into my old Dell xps 400.Graphics Card Manufacturer:Built by AMDGraphics Chipset:AMD Radeon HD 6900 Graphics Bus CapabilityCI Express 2.0Maximum Bus SettingCI Express 2.0 x16BIOS Version:013.008.000.010Memory Size:2048 MBMemory Type:GDDR5Core Clock in Mhz: 800MHzMemory Clock in MHz: 1250MHzTotal Memory Bandwidth in GBytes: 160.0 GByte/sAnd I was reading online and people said you PCI Express 2.0 with 2.1 as long as its x16 is this correct?

for the p's some odd reason they put smileys? dont ask, lol...

Um look at the top of the graphics card. You put the bridge right on the top.. Those are the crossfire connectors. No need for a PDF it connects right on top.

https://www.google.com/search?q=crossfire&hl=en&source=lnms&tbm=isch&sa=X&ei=wOQ6UcyeFZTg8wTG4oDABQ&ved=0CAoQ_AUoAQ&biw=1920&bih=979#hl=en&tbm=isch&sa=1&q=Radeon+Crossfire&oq=Radeon+Crossfire&gs_l=img.3..0l2j0i5j0i24l7.5220.7309.0.7398.16.16.0.0.0.0.109.791.14j1.15.0...0.0...1c.1.5.img.LX5w8vV7nHY&bav=on.2,or.r_cp.r_qf.&bvm=bv.43287494,d.eWU&fp=cb95bfb63f71cf4c&biw=1920&bih=979&imgrc=2aiYMQ1PaEMllM%3A%3B9-CXv1FTcYpBhM%3Bhttp%253A%252F%252Fpcper.com%252Fimages%252Freviews%252F796%252Fsystem1.jpg%3Bhttp%253A%252F%252Fwww.pcper.com%252Freviews%252FGraphics-Cards%252FAMD-Radeon-HD-5870-Triple-CrossFireX-Performance-Testing%3B600%3B400

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I5 3570K@4~5.0ghz: Gigabyte GA-Z77X-UD3H:Corsair Hydro H70w/Delta 240CFM Fan: 16GB Corsair Vengeance DDR-3 1600: 2 XFX Radeon 7950 @ 1150/1575 : Corsair AX 860 PSU: x2 WD Black 1TB HDD's: 90GB OCZ Agility 3:CL X-FI:Corsair 500R Arctic White Edition:3 22inch Asus monitors Eyefinity @ 5294x 1050(bezel comp) : Alienware Tact-X Keyboard: Naga Razer gaming mouse:Corsair Vengance 1500 Headset .