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HP DL580 G3 PSU 1300W Conversion to 13.8v PSU
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oPossum:
The pinout is documented.

smartshah:
Hi Tim, there was a guy who converted it to 13.8v DC but he never wrote how he did it with this particular PSU. I opened this up earlier today and everything is packed tightly.. there are about 4 extra PCBs and it has monstrous FETS. These are very powerful and stable PSU. Hence why i grabbed this particular one. I cant find the the company who actually designed or made the PSU so I can take peak at the schematics. Like i said i am willing to pay someone who can assist me to achieve my goal with this PSU. The caps are in an awkward location.. not easy to reach them to drain them
smartshah:
Hi epossum thank you for your input. I have seen this diagram before. I think i have added the thumbnail of how to get the PSU on. So i am after 2 things.

1. Output voltage increase to 13.8 volts stable under load
2. To prevent the PSU from cutting out due to over voltage.

If you believe i can do this from the pins in the diagram, then that is perfect. But i have to be precise as there is very limited space to attach or solder a wire or a resistor on these pins.

Thank you in advance.

If you can list the parts or components i will need, i will get them from a component store tomorrow and start hacking this.
NiHaoMike:
Having hacked a 1200W HP to output up to 16V for charging a large 4S pack, there appears to be two OVP mechanisms to defeat. I looked for resistors connected to the output and then tried to figure out what they did. There will be quite a few so be prepared to do a lot of reverse engineering. If there are any comparators in that area, try monitoring the outputs with a scope while turning up the output voltage.
smartshah:
HI NihaoMike,

Dont these PSU usually have OVP IC? I have seen a few vids where the IC pin is shorted to ground with a resistor. This PSU is small and light for the power it packs. Everything is pretty tight inside. This may be simpler than it sounds
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