I got some older miners I want to overclock a little since miners are more profitable now then before. Just wondering what is the safest wattage per PCIe connector? I am using them on older KNC Jupiters.
I know that with an SP20, which uses 1200Watts you can pull 400Watts each and not have the connectors melt. But with some KNC Neptunes running 400Watts melts the connectors.
I know that 150Watts is save due to GPU standards so with efficiency about 175Watts from the wall is safe. What about 250Watts from the wall? 300 Watts ?
I know that with an SP20, which uses 1200Watts you can pull 400Watts each and not have the connectors melt. But with some KNC Neptunes running 400Watts melts the connectors.
I know that 150Watts is save due to GPU standards so with efficiency about 175Watts from the wall is safe. What about 250Watts from the wall? 300 Watts ?
The SP20 has internal limits at 288 watts/PCI-E connector, which is the CONNECTOR max spec (the contacts are rated higher but only as a free-air max rating).
That works out to a bit over 300 watts per connector at the wall with a Platinum or Gold PS.
*4* connectors on an SP20, 1200 watts = 300 watts/connector NOT 400. Your math was wrong.
The PCI-E spec says 75 watts for a 6-pin, 150watts for an 8-pin on the connectors, but that's very very conservative especially when the only thing the 8-pin connector adds is 2 more ground wires (IMO they should have added 1 each ground and +12, 5 grounds 3 +12 makes ZERO sense).
"at the wall" watts depends quite a bit on the efficiency of your power supply.
