I recently borrowed a friends extra power supply to see if it could work with the above video card. However, I only see 1 PCI-E connector and the card recommends using two 75W PCI-E 2x3 connectors. My question is can I still use the power supply with only one PCI-E connector? If I can, will it work optimally? Power supply is a 550W LED Acrylic. Thanks in advance for the replies!
The card comes with adapters that change the normal sata power supply (used for HDDs and dvd-roms) to 6 pin molex for the video card. Just use that. A good 500w supply is enough for the 4870. I don't know about this Acrylic.