The HP Proliant DL180 G6 has a power distribution board/backplane
P/N 515766-001 with limits specified in the picture.
+12 V has 62.5 A MAX
Backplane has connectors for 2 common slot PSUs. I use two 1200 W PSUs.
I need to increase amperage in my system. I believe this backplane uses some form of redundancy logic. I want to sacrifice this redundancy towards current sharing between 2 PSUs connected in parallel.
Theoretically 2 PSUs connected in parallel can privide twice their amperage; it would be great to add at least 50%. This article's advice is to use Schottky diodes to reduce losses.
How to modify this power backplane for current sharing of 2 PSUs? It would be great if the second PSU could be turned on/off automatically with the first PSU.
Unfortunately I have no schematic of this backplane. Maybe they are similar to others.
Updated I tried to avoid too many pictures but after I read first answer I think it makes sense to show that this is only partially HP server: it has HP chassis and HP Power backplane and HP PSU. Motherboard is Supermicro and wires are solid and custom. The cables are several times thicker then necessary - 10 mm^2 per 10 A (except original wires from backplane to blue distribution board depicted on picture - this original wires are 16 awg - 12 cables) Likely these original cables need to be replaced to increase power. I believe that HP power backplane and its cables is the only bottleneck and dangerous component in this server. I use it for deep learning. I need to replace some videocards with more tensor cores and they require more power.