I have a dell 4550 and I want to upgrade the power supply. I read that some dell motherboards require proprietary dell power supplies. I was wondering if I can install a standard 600-watt ATX power supply or do I need an adapter? Has anyone upgraded his or her dell 4550 power supply?
All right, it seems, you have a Micro-ATX or small form factor board and so your challenge is not just getting a bigger power supply, your second challenge is getting a bigger power supply to fit into your case.
Right now you have a 250 Watt, which is pretty tiny, and it is nearly impossible to get one over 350 watts.
Looking at the diagram of the FRONT PANEL INSERTS on the above reference link, I DOUBT VERY MUCH you have ANY room in that tiny little box to put a 500 Watt PSU inthere, even if it has the right connectors.
I would call DELL and ask them if your psu is proprietary.
Even if it is not, I doubt you have the room to put a larger PSU in that box.
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