Hey everyone, just got an ASUS A8V motherboard with an AMD 64 3200+ on it, (for my secondary system). I have 2x 512 mb Kingston KVR ram + 1x 1024 mb Crucial Rendition ram for a total of 2gb of ram. However, i cannot get this motherboard to run in Dual Channel mode

. Everytime it boots up on the POST screen it says : Single-channel 64-bit mode. I put the 2 kingston DUAL-CHANNEL ENABLED sticks in the same colored slots(blue), and the crucial one in a black slot, and it still reads as single-channel. Does anyone have this motherboard with this issue? This pisses me off because as a result i get a poor performance in games. And BTW, i'm using the latest BIOS version for this board.
Any help would be appriciated, Thanks

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AMD Phenom 2 X4 940 BE - ASUS M3A78-CM -Kingston HyperX DDR2-1066Mhz 4096mb - Enermax 535w - Antec Three Hundred Case - WD Caviar 120gb SATA - WD Caviar 320gb SATA2 - Samsung 500gb SATA - AMD Radeon HD4850 PCIE - ASUS Xonar DX PCI-E Sound Card - 2x LG DVD 20x SATA Burners - SilverStone FM122 HighFlow Side Panel Fan, 2x Antec Tricool LED front fans - 1 top + 1 rear Antec Tricool Fans