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Old 08-31-2013
jack-o-bytes jack-o-bytes is offline
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Question Atrix 650w PSU (photo heavy)

Hey all. After uploading pictures of a terrible DRAGON power supply and getting such a good interesting response I was wondering what you all thought of this power supply? It is an Atrix 650w model but I took the sticker off as I needed to when I took it apart before. I then lost it haha.

It is currently powering a pentium 4 system with a 9400gt so nothing too tazing haha. Also a bonus picture is my TDA2050 amplifier that I made and school. I modified it a bit compared to school design upping the voltage from 9v to the 25v that the TDA2050 chip can handle haha

What do all you guys recon? Here are some photos.

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Old 08-31-2013
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Low-end half bridge with passive PFC and crappy caps. Next.
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Old 09-01-2013
rafal_iB_PL rafal_iB_PL is offline
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And it obviously can't do 650W. 300-350W on a good day would be my bet.
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Old 09-01-2013
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Looks like a Wintech or possibly Young Year OEM. The design looks capable of 400W or so, but it will depend on the silicon used. Assuming it's 12A switchers, with a 16A fast recovery rectifier on the 12V, then 350W is probably a more realistic limit. It would probably do OK as long as you keep it below that (until the caps go bad).
No wonder it doesn't work! You installed the coils backwards

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Old 09-01-2013
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Definitely a Young Year. They're built a bit better than most cheap half bridge units, but not much better. If recapped, I would trust it with a low end, older system.

6.3A fuse in a design this old and inefficient means it is probably a 300W unit at best.
Originally Posted by JFK
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650w, atrix, components, power supply

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