i dont know if your able to upgrade the psu due to dell product mobo and psu. might want to ask dell about that
You can certainly upgrade if you feel the need to, it's a standard ATX power supply, but it should be able to handle dual 260's without a problem ( other than needing to use the power adapters )
dell has got a lot better about their special little connections on their boards they used to have. a standard ATX power supply should work no problem. i highly recommend shopping for a power supply with the proper plugs. the adapters are supposed to be for temporary use only as most card manufacturers state. i wouldn't risk my cards to a 10 cent piece of plastic with loose connectors floating around in it.
oh ok... thanks a lot everyone :]
the adapters are supposed to be for temporary use only as most card manufacturers state.
I know far to many people who use them on a constant basis to buy into that.
what kind of power adapters
Molex to 6 pin adapters
but i only have 3 molex
Assuming your PSU is of high quality (Corsair, PC P&C), yes then 750W is more than enough.