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I have a computer that stopped working and I think the problem is the power source but I'm not sure.

I have other power source from another computer that I would like to use to test but first I would like to be sure if there is no harm to use it, if it is compatible.

The power source that I think is not working has these specs

INPUT 100V-127V/6A 60Hz 200V-240V/3A 50Hz ------OUTPUT +3.3V+5V+12V-12V-5V+5V Sb ------MAX(A) 14A 22A 8A 0.8A 0.5A 0.1A +5V &+3.3V MAX-120W

The power source that I could use to test has these specs

INPUT(50Hz-60Hz) 100V-127V~/6A 200V-240V~/3A -----OUTPUT +5V/22A +3.3V/18A +5Vfp/2A +12V/14A -12V/1A +5V AND +3.3V SHALL NOT EXCEED 150W -----MAX OUTPUT POWER: 250W

Any harm on trying that power source to test?

And just another question. What are the specs of the fuse these power supplies has inside? Are they standard?

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I don't think they generally have a real fuse inside, but if there is one the specs are usually printed on one of the metal parts at the ends. – Phil Apr 2 '12 at 1:35

closed as off topic by Brian Carlton, Nick Alexeev, rawbrawb, Camil Staps, Olin Lathrop May 8 at 12:17

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2 Answers

up vote 2 down vote

Check,for each voltage, that the replacement can deliver at least the current that the coriginal can deliver. That seems to be the case. If the connectors are the same, I see no harm in trying (unless of course the replacement is bad).

The specs of a fuse are hwat the designer intended them to be. In most cases it will be mentioned somewhere on the case or the PCB.

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up vote 1 down vote

ASsuming same connectors, looks like your replacement exceeds the original in every voltage and total power rating of 250W vs 120W. Keep in mind most switchers need at least 10% rated power to be applied on main supply (3.3V) to achieve good regulation, sometimes get high Vdc otherwise. Easy to check. SHould be ok.

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