So when I acquired this, the original Nanotek bearing fan had almost all of its blades missing. So I pulled a c_hegge and mounted a 120mm fan in there because I couldn't find any 140mm ones in my scrap pile. I was load testing it (Pentium 4 Prescott and overclocked GTX 285) and about an hour in it shut down and would not power back up. Even though it was getting really hot I figured that still wasn't enough load to blow it up. So when I took it apart I discovered this:
It looked like that on both FET's on the primary. And overall the soldering was bad in places. The thing only had 2 and a half years of use before I got my hands on it. After fixing those joints, it powered back up and I proceeded to recap it, redo a lot of the soldering, and add an MOV.
The thing actually has two 12V rails, each with a 30A schottky rectifier. Uses Viper22A for 5VSB. I'm going to put it in one of my builds with a Core 2 Quad Yorkfield and two HD 7770's in Crossfire. I think it'll be perfect for that. I know it isn't capable of 650W, but it looks good for about 400W at least.
Edit: Forgot to mention. Fhy on the primary, Asia X on 5V, 3.3V, and all the little caps. kingcon on the 5VSB and 12V. Apparently even kingcon is better than Asia X/Fuhjyyu/Jun Fu. Those 4 filtering caps on the secondary that are Asia X failed high capacitance, and one failed with 2.4Ω ESR. All the little Asia X caps read over 3Ω as well (I know that's not a completely unacceptable reading but I'm guessing they're failing). The kingcon caps on the 5VSB were high capacitance, good on ESR, and the ones on the 12V tested perfectly in spec.
It looked like that on both FET's on the primary. And overall the soldering was bad in places. The thing only had 2 and a half years of use before I got my hands on it. After fixing those joints, it powered back up and I proceeded to recap it, redo a lot of the soldering, and add an MOV.
The thing actually has two 12V rails, each with a 30A schottky rectifier. Uses Viper22A for 5VSB. I'm going to put it in one of my builds with a Core 2 Quad Yorkfield and two HD 7770's in Crossfire. I think it'll be perfect for that. I know it isn't capable of 650W, but it looks good for about 400W at least.
Edit: Forgot to mention. Fhy on the primary, Asia X on 5V, 3.3V, and all the little caps. kingcon on the 5VSB and 12V. Apparently even kingcon is better than Asia X/Fuhjyyu/Jun Fu. Those 4 filtering caps on the secondary that are Asia X failed high capacitance, and one failed with 2.4Ω ESR. All the little Asia X caps read over 3Ω as well (I know that's not a completely unacceptable reading but I'm guessing they're failing). The kingcon caps on the 5VSB were high capacitance, good on ESR, and the ones on the 12V tested perfectly in spec.
Attached Files
Comment