Recapped Antec Truepower 430

[derkraken]

I have used this power supply since 2004 (got it new). Recently it refused to start on cold boot - this really got worse when room temperature dropped in winter (Australia). I would have to run memtest or let the computer sit on the dual boot selection screen for a couple of minutes, and it would boot if I then reset.

When I opened it up I found a lot of Fuhjyyus, mostly bulging top and/or bottom. The ESR was as follows:

4700uF 10V 0.8
3300uf 10V 1.2
" " 0.82
" " 0.96
3300uF 16V 0.17
3300uF 16V 0.06 (this one was not bulged).

I replaced them with the same spec Samxons (thanks Big Pope) except for the 4700uF which I used the same specification Panasonic FM for (managed to just fit it). I also replaced a 1000uF 10V near the rear exhaust fan with a Panasonic FM (I think it was a Teapo) although the ESR measured OK. The one next to it also measured OK - I would have replaced it also but it was 2200uF 10V and I didn't have a replacement as I thought it would be 1000uF, and I couldn't see the value until I took it out!

Since replacing the capacitors I have had no problems with the power supply.

Thanks for all the info here - made it much easier.

[Krankshaft]

Re: Recapped Antec Truepower 430

Maybe your ESR meter is stuck on the wrong scale.

When I measured the baked caps on mine (did 4 Antecs) I was getting 72 ohms 89 ohms, and over 99 ohms (out of meter range). Bad caps are usually in the whole number range and not the decimal range.

[ratdude747]

Re: Recapped Antec Truepower 430

teapos will do ok in power supplies, fyi. some brands are like that.

[PCBONEZ]

Re: Recapped Antec Truepower 430

Fuhjyyu aren't even worth the time to check with a meter. - Just replace them.