5v rail to high

[Longbow]

Re: 5v rail to high

I'm still not buying it. I think it is time to name this supply and put up a schematic. These things are generally complex and well regulated supplies. True, they might need a simple load plug to actually draw a minimum current, but beyond that the 12v and 5v outputs should be right on.

It applied to picture tube tv's and it applies to switching power supplies: these flyback things are like a balloon. If you grab one part and squeeze it (tweak it), another bubble appears in a different place. The whole group of secondary outputs work together, even if they aren't on the same secondary winding. If looking carefully at the schematic doesn't get results, I would scrap this one for parts. That's my personal opinion.

[Drack]

Re: 5v rail to high

Sadly this is the only PSU I have, well I have others but they are worst than this , you can't buy anything better here without being rich and I don't think you could get an schematic, it's an Agiler AGI-ps1000

[Drack]

Re: 5v rail to high

Hi guys, did someone find anything about the psu?

[Drack]

Re: 5v rail to high

Update: the PSU is working fine, one of the DMM that I use to measure the voltages was bad and the other one had some dirty tracks on the PCB which affected measurements and a bad negative lead, 12 volts it's actually 12.33 at idle and 12.16 at full load with prime 95 and furmark running and 5v is at 5.19 at idle and 5.27 at load everything stable, the capacitors are doing fine (at least visually) the PSU exhaust air is just warm so I think it'll be fine, also I only use this pic like 3 to 4 times a month. Again thanks for everything guys.

[stj]

Re: 5v rail to high

lol
you can never have too many meters.
i have 5.

[momaka]

Re: 5v rail to high

Update: the PSU is working fine, one of the DMM that I use to measure the voltages was bad and the other one had some dirty tracks on the PCB which affected measurements and a bad negative lead

Yup, most of my cheap multimeter do that. I just have to rotate the dial several times to clean the oxidized contacts. After that, they read voltage okay... provided that their batteries are also good, of course (low battery = high voltage measurement.)

you can never have too many meters.
i have 5.

You can say that again.

I have only 4, but two are Harbor Freight Tools freebies, so not great quality. Another one is a cheapie as well, but a little better than the HFT meters (and I put good probes on it, so that makes it considerably better ). So my only good meter is a Radio Shack one - the more expensive models (though I got it for cheap on eBay.) It's no Fluke, but it's a major step-up from any cheap or even entry-level decent meter.

[goontron]

Re: 5v rail to high

lol
you can never have too many meters.
i have 5.

I second that motion.

Ive got a digital Uni-T, an older analog RadioShack, and the good 'ol' Fluke digital.

[Drack]

Re: 5v rail to high

We had 3 meters in my house, I had an analog that never worked like it should, and 2 digitals, one died after 10+ years of abuse(my dad dropped it a lot and the case was all broken) and the yaxun that is still working but it came missing one of the Ball bearings that make pressure on the dial and some black gunk that affected measurements.