Astec AA22600

[370forlife]

I picked this up on ebay for $10.00, it looked nice, had good experiences with astec in the past, so i bought it.

Good thing I did, this thing is pretty nice. Feels heavy. Heres some pics

An overall picture of it undressed



The power ratings



Primary side, big o'l Rubycon right in the middle



Some of the secondary capacitors, the purple one I don't know what is, but the others are nichicon and rubycon



More of the secondaries, rubycons



Last of the secondaries, Nichicon and UCC



Overall, it is very nice. I like it, it feels much heavier and looks much more well built than the rosewill 500W it is replacing.

[Wizard]

Re: Astec AA22600

That 3.3V and 5V is not combined! Only the two on aux lines are. Means GOOD design.

Cheers, Wizard

[shadow]

Re: Astec AA22600

Looks like a great buy!! Damn that PSU looks packed with components!

[SuperDuty]

Re: Astec AA22600

Old thread I know, but I've just replaced my blown OCZ ModXStram Pro 500W with this same Astec AA22600. I have taken apart quite a few power supplies, and this one is probably the best built I've seen. I've changed the fan since it was very loud, but it works like a charm in my computer (Phenom II X4 965/Asus M4A89GTD PRO/2x2Gb HyperX/USB3/HD5770/Vertex2/WD Caviar Green 1Tb).
I'm not an expert in electronics, but is this an active PFC design ?

Oh and BTW, got if for free with the remains of an IBM x225 server in the dumpster. It was complete actually, but missing the outer sheet metal.

[PeteS in CA]

Re: Astec AA22600

That the label has two AC voltage ranges usually mean it's not active PFC. A AC voltage range switch would be a sign it doesn't have active PFC, but its presence or absence isn't shown in the pix. OTOH, if that big primary side cap is the only one, and it is rated 400V or higher, it has active PFC.

[SuperDuty]

Re: Astec AA22600

The big capacitor is single.

Well, I'm pissed, something must be wrong with the 220V plug I'm using in my student room. I moved my computer from my parents house to my apartment for the second time in two weeks, and it does the same thing with two different good quality PSUs !
I was watching a Youtube video, and the computer stopped suddenly, it restarted immediately but no post, and the fans were working at full speed. I had to unplug the computer since there's no switch on the back of the PSU, and pushing the power button of the motherboard wouldn't do anything.
The light on the motherboard is on, there is a slight hissing noise coming from the PSU, but the computer won't start...the fuse looks good. I tried to turn on the PSU with a wire between the green wire and a black ground wire, but nothing happens, which is generally a sign of a dead PSU, but the motherboard light wouldn't come on if it were dead I guess. The tensions were good according to OCCT and my voltmeter on friday night.

Does some kind of overheat protection exists in PSUs ? It would be strange since I wasn't doing anything special.

Or maybe the fan I've changed has failed and the power supply won't start without a fan ?

[RJARRRPCGP]

Re: Astec AA22600

Sounds like the power went out then came back real quick. That can cause the PC to just show a black screen or fail to turn on until you discharge the PSU.

[Rulycat]

Re: Astec AA22600

Maybe bigger primaries would help, but I don't know if you could fit them in.

[momaka]

Re: Astec AA22600

Try resetting the CMOS settings. If that doesn't work, try different RAM sticks as well.

Could be the ASUS motherboard, too. Some people here will argue that they aren't very reliable. Or it could also be a failing video card. What brand is it?

[SuperDuty]

Re: Astec AA22600

It's a Sapphire HD5770 1Gb(v2).

Thing is, the fan won't spin when I connect the green and black wire from the 24 pins connector. But there IS power : normal hissing noise, motherboard light on, I felt current when I accidently touched a radiator (horrible feeling, gotta be careful with that stuff).

Sucks I don't have my voltmeter with me :/

[momaka]

Re: Astec AA22600

I felt current when I accidently touched a radiator (horrible feeling, gotta be careful with that stuff).

That's most likely bad ground wiring on the plug in your room. I don't know if this is what's causing problems with your computer, but you should definitely worry about getting that plug fixed first.

[budm]

Re: Astec AA22600

That was the heatsink on the Hot (line) side of the circuit which will have 120 or 230v on it depends on where you are at, that is why I always recommend to plug what ever you are working on into GFI outlet or isolation transformer.

[SuperDuty]

Re: Astec AA22600

I'm not in my students rooms now, so I've done a few voltage tests. Seems like theres power only on a small part of the secondary side.
I've plugged the voltmeter prongs to on molex connector on the 12V, and when I turn on the power supply, I hear a slight "click" sound coming from the secondary side and the voltage goes up to around 3-4v and then goes back to zero progressively, as if the power supply would protect itself.

[SuperDuty]

Re: Astec AA22600

I'v plugged it to another mainboard without much change. Though after a moment, the CPU and GPU fan started to spin for a few seconds but stopped right after.

It seems like there is power but the PSU won't start or stay on. Could it be a problem with the PS_ON wire or something related ?

It's weird because when I take voltages on the little vertical board on the secondaries, I get normal voltages (well I can only guess that though, maybe they should be higher or not)

[b700029]

Re: Astec AA22600

For a second I thought someone had picked up the monsterous AA23920L I'd just mentioned in the other thread here: https://www.badcaps.net/forum/showpo...23&postcount=5

[momaka]

Re: Astec AA22600

I know Astecs are reliable, but at this point I would suggest to borrow a different PSU from someone else and try it out. If the computer still doesn't work, then it's likely not a PSU fault.

[SuperDuty]

Re: Astec AA22600

It's been replaced already by a 500W Fortron Blue Storm. I'm kinda upset to see such a good PSU fail after only two days of use while my crap PSUs have been working fine for years.

[SuperDuty]

Re: Astec AA22600

Okay, now that's weird. I've decided to give it a try today to see if by any chance it would start again...and well...it DID !

The thing is, it had a hard time starting, it shut down and on by itself several times before staying on permanently (the fan would start spinning, then stop, then start again, with a slight tick noise everytime). The voltages are just as they should be. I don't want to shut it down anymore :P

What could cause such an issue ? Seems like a component necessary to start the PSU is dying but not completely dead yet.

[SuperDuty]

Re: Astec AA22600

Now it will start up just fine...what the heck is that !