I'm hardware-refreshing my old HTPC to an i5-3570K on a MSI Z77A-G41 which has an 8-pin 12V CPU power connector, and the PSU I have is an Antec Earthwatts EA-380 PSU, which has a 4-pin ATX 12V ...
My motherboard has a 2x12V, 8-pin power connector on it (in addition to the 24-pin main power connector. The power supply I have only has one 1x12V, 4-pin connector; do I need both of those power ...