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Re-use old PSU for new build, good idea or not?

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February 25, 2013 2:37:30 PM

I've really caught the bug since I started using these forums and built my first computer. I want to build another htpc for the bedroom that will exclusively be used to play dvd's and stream Netflix and things like that.

I have a 460w psu sitting around from when I upgraded my dell xps 8300, that was working fine, just changed because I needed wore wattage for a new gpu on that machine (It's less than a year and a half old). I want to know if it would be advisable to re-use that psu, or if that's a risky idea, and I should just get a new one.

Planned build: FM2 mobo, A-10 (5700? the low power version), 8 GB ram, SSD, maybe HDD, and DVD and/or Blu-ay drive. And maaaybe i'll put in a 6670 I have lying around, but I honestly didn't see ay benefit on the apu/gpu crossfire on my other htpc.

As you can see, it's a low power demanding build, so I'm not concerned about 460w, it's probably way more than this build would need. I am concerned whether or not re-using a Dell psu is a bad idea or not.

Appreciate any insight!

More about : psu build good idea

a b ) Power supply
February 25, 2013 2:45:51 PM

460w should be more than enough for your needs. The old XPS rigs actually had decent (by Dell standards) PSUs in them. Just keep in mind that (if a Dell PSU), that your cable lengths (for the 24-pin main and 4-pin(or 8) aux power connections) might be a problem. Look closely at how all will be mounted in your case.

If it were me, I would just buy a new PSU at the same time I purchased the other components. I strongly recommend Seasonic and Corsair PSUs.

Good luck!
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March 5, 2013 1:28:55 PM

Good point, and since I might switch to a m-itx or micro-atx build, I guess I'm better off spending a few more bucks and starting with all new stuff. I just hate to waste perfectly good components. Thanks!
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a c 281 ) Power supply
March 5, 2013 3:27:48 PM

jcharger said:
Good point, and since I might switch to a m-itx or micro-atx build, I guess I'm better off spending a few more bucks and starting with all new stuff. I just hate to waste perfectly good components. Thanks!


Hi - just a cautionary note, if you switch to a small min-itx, etc., just
insure that it'll house a std ATX PSU. There are specific mini itx and
micro atx psu's, but if your new case can support std ATX, you
will have more choices and better price/perf options.
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