Shouldn't a GBU606 be able to handle around 400W? Although I don't know the kind of efficiency it gets. I think it's scary though that this thing comes with a 6 pin and 6+2 pin PCI-E connectors...
Oh okay. There are two KSH13009AL's. On the secondary there is a STPS304SCT and the other one is completely covered in glue....I'll try and scrape it off and list it here.
This is a very old CWT design, they do ok up to about 300W, but thats around their limit. This looks like it will do just that, looks like E13009L primary switchers and decently sized secondary rectifiers.
If I recapped it, would it still only be able to do around 300W? I'm not sure, there is another one hiding behind glue and a coil, can't really read anything about it. Is this a half bridge unit?
It would do 300W regardless of the caps. It is indeed a half-bridge.
EDIT: If you were going to mod it, I'd also bend the fins on the heat sinks outwards.
I wonder if I could replace the schottky's with the ones I just took off of my Bestec, or would that not work cause it was a Single Transistor Forward design?
You would have to increase the capacity of a lot of things:
- The switching transistors
- The secondary rectifiers
- Possibly the heat sinks
- The drive transistors
- The Primary caps
- The Transformer
- The Coils
I love putting bad caps and flat batteries in fire and watching them explode!!
No wonder it doesn't work! You installed the jumper wires backwards
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Well I guess transistors usually have enough capacity (we talk about like +0,3 A on 315 V, right), about rectifiers we already talked (that also affects heatsinks), primary caps affect mainly micro-blackouts of the power net and the transformer does not look SO bad to me I mean 400 W combined ofc
Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
Transformer looks like it'd do 400. Depends on the secondary diodes.
Originally posted by PeteS in CA
Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
It's got a bridge rectifier, but it's pathetically small. The main caps are 330uF, but they look the same as the fake 330uF's, so they probably are fake. (=220uF) I'll test them when I get some time. Oh, and of course, no line filter. Wonder who made this one...?
Claims 3.3V at 14A, 5V at 35A(!), 12V at 17A and 5VSb at 2A.
Output caps are two 330uF 16V on 12V. (I kid you not! - one each side of pi coil.) Two 470uF 10V on 5V and also two 470uF 10V on 3.3V. The -12V gets 470uF 16V and -5V gets 470uF 10V. 5VSb gets 470uF. Pathetically small! Output caps are Fujhhyjyuu, first time I have seen these in any equipment.
Attached Files
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Bridge rectifier is 2 A, that equals 650 W with 325 V, thats not so bad, no? Its even big enough to work under higher load cause it will stay cooler. I have seen one joke rectifier with quarter the thickness and rubber electrodes which also begun to drop output current at just 75 °C
Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts
Seventeam ST-230WHF AT power supply (w43/96). Still works perfectly along with the Pentium 150 system it was powering.
One good thing about this PSU is that both the AC mains voltage and fan have clips instead of being soldered directly to the board. Nothing more annoying than something that requires desoldering or wire cutters just to take it out of its enclosure.
One thing I noticed about the V-Spec PSU is that it is "thermally controlled" - presumably that refers to the fan. Indeed, there is a place for an NTC thermistor, but it is replaced with a piece of wire, so the fan runs full speed all the time.
Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
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