Refurbishing an old nice ATNG

[Pentium4]

By looking at the label I thought that this thing was going to be junk. But it turned out to be a really well designed ATNG, made in March, 2004. The pictures pretty much speak for themselves. 10A bridge rectifier. Besides the primary, all Fuhjyyu caps. But here's the crazy thing, the only ones that tested bad were the ones on the 5VSB, 3.3V, and -5V rail filtering. Even the ones that look like they got toasted by that 5V minimum load resistor were okay (btw, 7.5Ω is way too low to be on the 5V rail) I will change that resistor out while working on it, to at least 50Ω. Switching out that 16A ultra fast on the 12V for that 30A schottky. Removing a lot of flux on the soldering side. Oiled the fan, it was really dry. Very silent though even at full speed! It only has a max speed of 1500RPM. For a 2004 power supply, this thing was very well built. Perfect input filter, good sized heatsinks, good silicon, nice transformers, the 5VSB one looks above average. Large output toroids, big PI filters. This somewhat looks like a Macron design. I'm almost done recapping it. What do you guys think?

[stj]

Re: Refurbishing an old nice ATNG

WOW - i think that's the first ATX supply i'v ever seen that actually used a fuseholder!!

heatsinks remind me of powerman btw.

[CapSwapper]

Re: Refurbishing an old nice ATNG

Teapos on the primary and Fuh(k)you caps on the secondary. I'm surprised it never caught on fire. IMO 10 years is the maximum service life I give a psu then I toss it. Those junk caps were probably way out of spec for years which stresses other components

[goodpsusearch]

Re: Refurbishing an old nice ATNG

wow, that's a very nice looking power supply.

I bet it can do 400 watt continuous in spec.

what primary switching transistors it uses?

edit, just saw it in the pics, 13009. 400 watt would be the limit then.

[Behemot]

Re: Refurbishing an old nice ATNG

OFC +5 V heavy design, not sure if dropping the minimum load from 3,33 W to 0,5 W is good idea. In modern +12 V heavy system the +5 V rail will barely be loaded at all, leaving it heavily crossloaded with +5 V skyrocketing and +12 V dropping down the tube.

[everell]

Re: Refurbishing an old nice ATNG

OFC +5 V heavy design, not sure if dropping the minimum load from 3,33 W to 0,5 W is good idea. In modern +12 V heavy system the +5 V rail will barely be loaded at all, leaving it heavily crossloaded with +5 V skyrocketing and +12 V dropping down the tube.

Just find an old Pentium three mother board, use this power supply, load it with Linux, and it will do fine! Still lots of Pentium three mother boards on Ebay....cheap!

[Behemot]

Re: Refurbishing an old nice ATNG

[Pentium4]

Re: Refurbishing an old nice ATNG

WOW - i think that's the first ATX supply i'v ever seen that actually used a fuseholder!!

Really? They're pretty rare, but I've even seen one in a Deer made in 2002/3 (Allied model)

heatsinks remind me of powerman btw.

Those old ones made by FSP? Definitely.

Teapos on the primary and Fuh(k)you caps on the secondary. I'm surprised it never caught on fire. IMO 10 years is the maximum service life I give a psu then I toss it. Those junk caps were probably way out of spec for years which stresses other components

Yeah no kidding, I never leave either of those cap brands anywhere (except on the voltage doubler after testing.)

If an old PSU is good enough, it is worth recapping, even if it's over 10 years old. Plus, I have a soft spot for older stuff

wow, that's a very nice looking power supply.

I bet it can do 400 watt continuous in spec.

what primary switching transistors it uses?

edit, just saw it in the pics, 13009. 400 watt would be the limit then.

Yeah I think it could too. The fan moves a good amount of air.

OFC +5 V heavy design, not sure if dropping the minimum load from 3,33 W to 0,5 W is good idea. In modern +12 V heavy system the +5 V rail will barely be loaded at all, leaving it heavily crossloaded with +5 V skyrocketing and +12 V dropping down the tube.

I changed out the 5V with 100Ω, changed the stock 10Ω on the 3.3V with 50Ω, and left the 275Ω on the 12V. And, after changing out that ultra fast on the 12V with the schottky, and the combination of changing the load resistors, it doesn't act that way. I loaded it up with one of my systems which is an Athlon 64 x2 3800+, x4 DDR2 modules, 9800GT, and single 7200RPM hdd, and the 12V and 5V were really high under idle, the 12V read 12.86V, 5V read 5.30V, 3.3V read 3.33V, 5VSB read 5.19V.

Just find an old Pentium three mother board, use this power supply, load it with Linux, and it will do fine! Still lots of Pentium three mother boards on Ebay....cheap!

I do have an old dual P3 system that could use a PSU. But it could go into a 12V system as well, if I change the load resistors. I might even try just adding some 5V to this one to see what it does to the voltages.

[Behemot]

Re: Refurbishing an old nice ATNG

The voltages are out of spec, I would not use that thing. On +5 V heavy system the +12 V rail will go high over 13 V, making the compensation go crazy. It may even cease to work.