Madman
01-02-2007, 10:00 PM
Ok so I was always had a preference for large single-rail PSUs. But based on the expert opinions of JG and others I decided that a good multi-rail PSU would be ok as well. I probably could have gotten a pseudo-multi rail like the Corsair 620 or the Seasonics but this unit was close in price to the Corsair and less than the Seasonics, seemed like a good deal to me.
So, looking back at JGs review of this PSU I see he mentions only using half of the 8-pin EPS connector to power the CPU off rail 1, leaving rail 2 for the SATA connectors. This makes sense of course in terms of power draw, the CPU doesn't need more than 18A, so I have 2 questions:
1) Will using half the connector still provide solid power through the motherboard power circuitry? What I'm thinking is that it's possible the motherboard will work better with all 8 pins connected, not because of the total power draw but because of the way the mobo power circuitry is designed to take in power. But I have no idea about mobo power circuitry so I ask here ;) does all the power going in through 4 inputs instead of 8 make a difference? It's a P5B-deluxe wifi.
2) If I do only use half the 8-pin connector, how will I know which half is on which rail without having test equipment? The P5B-D comes with half the EPS connector blocked off anyway, so obviously I would use those 4 pins I just don't know how to be sure it's using rail 1.
So, looking back at JGs review of this PSU I see he mentions only using half of the 8-pin EPS connector to power the CPU off rail 1, leaving rail 2 for the SATA connectors. This makes sense of course in terms of power draw, the CPU doesn't need more than 18A, so I have 2 questions:
1) Will using half the connector still provide solid power through the motherboard power circuitry? What I'm thinking is that it's possible the motherboard will work better with all 8 pins connected, not because of the total power draw but because of the way the mobo power circuitry is designed to take in power. But I have no idea about mobo power circuitry so I ask here ;) does all the power going in through 4 inputs instead of 8 make a difference? It's a P5B-deluxe wifi.
2) If I do only use half the 8-pin connector, how will I know which half is on which rail without having test equipment? The P5B-D comes with half the EPS connector blocked off anyway, so obviously I would use those 4 pins I just don't know how to be sure it's using rail 1.