PSU: Antec Neo 480W Issue

[Overboardkiller]

Hey Guys / Girls,

I have a big issue with my power supply.

About a 2 years ago my power supply was getting very hot so i desided to open it up and change the Fan inside to use the 12v which made it spin faster. Which was heeps good..... Untill it slowly started to die.

when i turn off my computer (Shut down not restart) then try and restart it nothing would happen i thought it was a power issue untill about 2 mins of playing around it turned back on...i thought this was a loss cable till the next time it happened this time i just waited 2 mins and pressed the power again and turned back on.

This issue got worst and worst after a while, i was waiting like 30 mins for the damn thing to be able to turn back on. Seeing that i opened it up and stuffed my waranty i couldn't really take it back, and i thought it might have been a issue when i opened it up.

I desided to buy another Power Suppy because i got really pissed off with it. I brought the same make an Antec Neo 480W as i really liked the look and the connections it has.

About a month ago this issue started up again with the new PSU.... i'm having the same issue i turn off my computer and i have to wait like 10 mins before i can even turn it back on.

does anyone know what is going on or even be able to help me (i still have the old Antec Neo as well)

As long as the computer stays on it is not a issue it and the PSU works really good.

[linuxguru]

Re: PSU: Antec Neo 480W Issue

Post a picture of the innards of the PSU if possible. This is probably an issue with the caps on the +5Vsb or internal controller Vcc rail.

[Overboardkiller]

Re: PSU: Antec Neo 480W Issue

Yeah well i'll post it of my old PSU because i don't know if i can return this one yet.....
This will have to be done tomorrow (i'm in Australia)

[willawake]

Re: PSU: Antec Neo 480W Issue

About a month ago this issue started up again with the new PSU

how long have you being using the new psu for?

[Overboardkiller]

Re: PSU: Antec Neo 480W Issue

Images here

http://members.iinet.net.au/~hexagon/PSU/

if u need some closer or better ones i need to know where....

i've had this PSU for about a year now

[Per Hansson]

Re: PSU: Antec Neo 480W Issue

Antec uses Fuhjyyu capacitors, they are crap and have most likley failed

Look for replacement capacitors, one of the 5 major Japanese brands... It must be LOW ESR and rated for 105°C, and as long life as possible, 5000 hours at 105°C is good...

[willawake]

Re: PSU: Antec Neo 480W Issue

what does it say on the blue caps. they look like fuhjyuu brand as said above. they might be bulging a little. difficult to say for sure.

what motherboard do you have and what caps are on it, how do they look?

[linuxguru]

Re: PSU: Antec Neo 480W Issue

This is a Channel-Well OEM unit, and they love Fuhjyyus for some reason. If you can, replace all the Fuhjyyus for a start. You may have difficulty finding 10mm caps that can fit in the same space as the Fuhjyyus and provide the same capacitance.

[kc8adu]

Re: PSU: Antec Neo 480W Issue

3rd pic has a bulging fuhjjyu against the center coil.
time for a total recap.fuhjjyu=

[UraBahn]

Re: PSU: Antec Neo 480W Issue

I don't see any bulging on any of the pics, but get rid of _all_ those fuhjyyus (at least the ones that are 220uf and above) anyway. Just because they look fine doesn't mean they haven't failed: My 250W Hipro that was running hot enough to fry eggs had G-Luxons and Teapos that looked fine but were definitely quite bad.

[Tom41]

Re: PSU: Antec Neo 480W Issue

I had a Suntek PSU that was full of Fuhjyyu caps. One of the caps on the output side bulged, and the PC immedately failed - just kept on rebooting and never getting past the POST. I decided to buy a new PSU rather than attempt a full recap, since I assume the non-bulged Fuhjyyus were already failed and out of tolerance.

Sadly, I often see Fuhjyyus in many PSUs these days - there are some in an FSP PSU I have (FSP is usually a good make).

[PeteS in CA]

Re: PSU: Antec Neo 480W Issue

3rd pic has a bulging fuhjjyu against the center coil.

Concur. The 400V I/P cap looks to be a Rubycon, and is indicative of active PFC.

[trodas]

Re: PSU: Antec Neo 480W Issue

Hey, guys, no disrespect, but all the caps was already properly identified by me there:
https://www.badcaps.net/forum/showthread.php?t=2022

So no point of repeating what we all know:

1x Rubycon 330uF 400V 85°C x25 x 45
4x Fuhjyyu 3300uF 10V TMR 105°C r10 x 30
2x Fuhjyyu 2200uF 16V TMR 105°C r10 x 30
2x Fuhjyyu 1000uF r8 x 17
C4 - 1uF 50V r4 x 8
C12 - 10uF 50V r5 x 8
C56 - 10uF 16V r5 x 8
C23 - 220uF 16V r6.5 x 11
C22 - 470uF 25V r8 x 16
C58 - OST RLG cap 22uF 50V r5 x 11
C17 - 22uF 16V r5 x 11
C - unknown, but very close to the C58 - 47uF 25V r5 x 11
(all caps is Fuhjyyu, except the two mentioned - one Ruby, one OST)

As for the caps, Samxons GD 2200uF 16V and 3300uF 6.3V (for the 10V ones, they are onl 5 and 3.3V raild = 6.3V is enought) ones are both D10, so not a problem. I will recap the PSU myself soon. VERY soon

Overboardkiller - could you please check the R117 resistor? We believe the stips should be brown (1) white (9) and then red (2) and gold (5%) - but a confirmation is need, please! Mine is burned out beyond recognition
19 + 2 zeroes whould make 1900 oihms in 5% tolerance.
So, can you please check? Thanks!

[miztahsparklez]

Re: PSU: Antec Neo 480W Issue

hmm my antec 480 true blue is having a somewhat similar problem.. wouldnt allow my system to boot sometimes.. me thinks my radeon killed the powersupply. ive been using a 500w psu from antec.. with the controller board for the individual rails. seems like its working okay.

[trodas]

Re: PSU: Antec Neo 480W Issue

Dude, you Radeon is not killed your PSU. Your PSU use bad caps from well-known inferior brand and it can and it will kill your mainboard and/or your radeon if you did not recap it.

But if you recap it, I promise you, you get one HELL GOOD PSU!