Wow - you asked this very same question on three different forums - MyCE, Afterdawn and Doom9-eh!!
Anyway - it appears that your computer comes with only a 300 watt power supply - which is probably to little to power the addition of this video card to your computer. There is a great 500 watt power supply in the bargain basement for only $30 delivered to your front door. See it here:
Once you have enough power to run both your computer and the new 5770 card you need to connect it to the power supply via the six pin male connector from the power supply which goes into the six pin female connection on the right upper right corner of the video card as seen from the rear. Any further questions - just ask us - we’re full of answers-eh![/QUOTE]
Thanks Mike, ordered the power supply, great price!