Lepa G1600 PSU Rails

[rwatki]

With all the Lepa power supplies, I have been looking at the rail configuration.
The ones I have been looking at have 6 12V rails, yet several of them have 8 PCIe connectors.
How do you know which connector is attached to which rails, so I don't overload any specific rail?
I can't seem to find a mapping between the rails and the connectors. At least 2 of the rails must have 2 connectors, while the other 4 rails have 1 each?

Im looking for a high power PSU with 100A @ 12V for a mining rig.

 

[Lutfij]

This review and it's subsequent page should explain how you end up with ten PCI-E connectors from 5 ports on the PSU side.

Might I ask the rest of your system's specs and the GPU's that warrant such a high powered unit off the +12v rails?

 

[rwatki]

Thanks, I did find the maping between the rails and the connectors. Turns out I don't need to go with these large PSUs though as I found a way to reuse the existing smaller PSUs without any difficulty by setting them up in pairs and tying the grounds together.

 

[Lutfij]

Ah that give much light on the matter! Can you provide an in depth post on how you achieved the paring of your PSU's? It would serve as food for thought to the community 😉

 

[rwatki]

Ah that give much light on the matter! Can you provide an in depth post on how you achieved the paring of your PSU's? It would serve as food for thought to the community 😉

I already had the green/black pairs tied together on each psu to get power on. The first psu powered the main PC and the 12V rails from the PCIe connectors power the blades. The blades are attached to the PC via USB cables.
All I did was to take the ground wire from the PCIe connectors on each PSU and stripped the wire back and connected them together with aligator clips.
The only thing I was trying to achieve was to make sure the ground wires had the same potential so that the +12v side on each PSU would be pretty similiar.
Im not an EE, so my main concern was that with 2 isolated 12V supplies, I didn't want to get any big current flow between the PSUs going back through the USB connector, so by tying the grounds together I made sure that the 12v signal was pretty similar between each blade.

 

[Lutfij]

^ So your'e dealing with Blade servers? ATX PSU's don't have mounting space within them :/