Using 2 PSU on 1 computer ( Second PSU turns itself off when under load)

Fresh3 days ago

Mar 15, 2026571 views

Confidence Score0%

Problem

I have followed the guides on the internet, in short to start the second PSU short the green wire on P1 with a black ground wire and the PSU will start. This works, my second PSU does start. But if i attach any harddrives to it it turns itself off after 1-2 seconds. If i only connect fans or nothin…

Unverified for your environment

Select your OS to check compatibility.

Your OS

OS version

Product version

1 Fix

Canonical Fix

Unverified Fix

New Fix – Awaiting Verification

Fix for: Using 2 PSU on 1 computer ( Second PSU turns itself off when under load)

Low Risk

Instead of just jumping it out, you could try this adapter cable.

Awaiting Verification

Be the first to verify this fix

Using 2 PSU on 1 computer ( Second PSU turns itself off when under load)

Problem

1 Fix

Fix for: Using 2 PSU on 1 computer ( Second PSU turns itself off when under load)

Environment