I had the same problem. I have a Dell 8250 and the power supply is 300 watts too. I went ahead and connected the same video card the 6600gt to it and works fine. I have it setup like this for like 8 months now.
I have an emachine t6522, and it comes with a pci express slot. i would like to put in the 6600gt but the power supply calls for a minimum of 350w and my emachine only has 300w. i am wondering if putting one in would really drag my system, or if it would be fine. i dont really want to upgrade my power supply right now so if its not possibel for the 6600gt what graphic cards would be the next best one that will be in the 300w power supply range.
thanx for you help,
clay
windows xp
amd athlon64 3500+
200gb hd
1gb ram

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