Trying to up-grade my power supply from the 255w to a 400w +/- model, but this is a very confusing task. Has anyone up-graded their PSU, and if so, what is the correct model/type.
Which PSU I need on my Dell Optiplex 9020 MT upgrades?
https:// You need an adapter cable like this, and then you can use any off the shelf ATX PSU. This adapts the standard ATX 24-pin to the proprietary Dell 12V only power connector.
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