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CONFUSED ABOUT CROSSFIRE, PLEASE HELP!!!

Last response: in Graphics & Displays
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April 4, 2010 4:33:54 PM

so, I finally got all my components this week and put them together. Everything works great and I am very impressed with the level of quality and performance I am getting with this rig. I have dual Sapphire 4850's one in the PCI 16x slot & one in the PCI 8x slot with 2 Crossfire bridges connecting both GPU's. When I open CCC (Catalyst Control Center), it does not give me the option to enable Crossfire. When I go into device manager it shows as if I have 1 ATI 4800+. However, when I right click on CCC in the system tray, it shows I have 2 ATI 4850 cards. My question is, what am I doing wrong that I am not able to enable Crossfire. The option does not even show up in CCC. I have downloaded all the most recent drivers & updates from ATI & Gigabyte but still don't see the option for Crossfire. I'd greatly appreciate some insight or help from someone. Thank you in advanced! PS, below you will find a list of the components in my PC.

Antec Three Hundred Illusion Black Steel ATX Mid Tower Computer Case - Retail
-AMD Phenom II X3 720 Black Edition Heka 2.8GHz Socket AM3 95W Triple-Core Processor Model
-G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL - Retail
-GIGABYTE GA-MA790GPT-UD3H AM3 AMD 790GX HDMI ATX AMD Motherboard - Retail
-Antec EarthWatts EA650 650W
-HP 24X Multiformat DVD Burner Black SATA Model 1270i LightScribe Support - Retail
-XIGMATEK HDT-SD964 92mm Rifle CPU Cooler - Retail
-2 (TWO) SAPPHIRE 100245HDMI Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready
-1 Western Digital Caviar Black WD6402AAEX 640GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard

More about : confused crossfire

a b U Graphics card
April 5, 2010 12:26:27 AM

Just as confused with you after reading the Gigabyte manual, but in my opinion wour 650W is a little small for 2 4850s as they are more power hungry than a 4870x2, which requires your 650 as a bare minimum. On your PSu under 4850, it says that it could only hol one card.
http://game.amd.com/us-en/crossfirex_components.aspx?p=...
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