I've just built my first PC and my (non-modular) power supply has only one 6-pin power connector. That's not an issue at the moment because I'm using a 5770, but I'm wondering about upgrading in the future to a card that needs two connectors. I'm pretty sure my system has enough juice to run most two-connector cards.
Will I need a new power supply if I ever want to use a double-connector graphics card? Or is there any kind of adapter? The PSU has a spare 4-pin connector and several spare molex connectors if that makes any difference.
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Usually graphics cards that require 2 6pin or even an 8pin connector come with molex to 6/8 pin PCI-e adapters. So you will be fine.
What power supply do you have? You might want to upgrade just becuase its old and or bad.
It's a Coolermaster eXtreme Power 460W. I'm not going to be using crossfire/sli (mobo doesn't support it) or heavily overclocking so it should do me fine.