I see the power connectors on the back of the cards. One looks like the manuals and specs, the other is a square instead of rectangular, but they both are plugged into the PSU as they should be. (Good photos tho!) The next thought is how much wattage is your PSU! I dont know what it should be for 2, I know what the recomendation is for one, 480. I would guess 560 for two. (P4/Athlon require min 300 just to power processor and MB, 400 to add HDD and other peripherals)

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