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Thread OP
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Question
ATX power supply
Hello, I bought an ATX PSU 500w to replace the psu of my anet a8.
Rather than cutting all useless wires I have remove them from the main board and sold only 2 wires (awg 12) for the 12v and 2 for the 5v (for a rpi). I also chunted PS_ON with ground but when I connect to 220v, there is 12v only for a few seconds (same for 5v). The fan of the PSU is also turning for a few seconds... I don't think I have made a short-circuit but there is something wrong... Any idea where it can comes from? Thank. |
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Many ATX power supplies require a load on the 5V and 3.3V rails to be able to provide full power on the 12V rail(s).
For that reason, even though I had a spare ATX power supply around when I upgraded the PS on my A8 I decided to spend the $20 on an HP DPS-600PB server power supply, It doesn't require any load on any of the rails and provides 47A of clean power on the 12V rail - plenty for an A8. I even designed a mounting bracket for it: DPS-600PB Power Supply Mount for Anet A8. |
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