Re: only 4V on standby - EVGA 850 B2 SuperNova
FAIL.
ended up scrapping it for copper. too many surface mount parts and tight areas and it looks like a waste of time to order parts when used ones are $50. this is truly a garbage power supply and I don't recommend it to anyone.
Thanks for everyone's help
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Re: only 4V on standby - EVGA 850 B2 SuperNova
Thanks for the help. I'm starting to think more and more that it isn't the mosfet either because it still doesn't explain the loud pop and how I still have 5v. Because I have the second one I will desolder the related parts tonight while drinking and see what I find.
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Re: only 4V on standby - EVGA 850 B2 SuperNova
The "1" is on there with no leads touching anything so I don't think that can be overload, and when I tested a resistor it will go up to 4.7 or 100 or whatever so I think the meter is OK. Just holding the probes in the air causes a "1" ..
Basically there is no change from the "1" when I'm on the 200ohm setting no matter which sequence of pins I probe using any polarity yet under the same setting as soon as I touch something else the numbers move
It has no diode function ,...
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Re: only 4V on standby - EVGA 850 B2 SuperNova
it actually shows 1 on the meter but thats just the default of the 200ohm setting. It basically doesn't move no matter which combination of pins I touch and I tried both ways. the meter works because when I test a resistor its pretty close to perfect.
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Re: only 4V on standby - EVGA 850 B2 SuperNova
What do you guys think of this ? Its got 0 ohms on every pin in every direction. I think that means its blown right. I just want to make sure its bad and not sure if that is melting on it or a secret sauce compound the mfct puts on to hold on the pin sleeve in place. I'm just stumped because the other one looks the same so they are either both blown or both have compound and the problem is elsewhere.
It was a pain to get to and I had to remove the copper coil because they hide the screw behind it.
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Re: only 4V on standby - EVGA 850 B2 SuperNova
Yes of course, nothing out of the ordinary. No burn signs and the fuse tests ok. I can't actually see it as its covered in shrink wrap but there is continuity
By standby I mean the poweron wires, I'm thinking TV where its usually called standby but this is a ATX power supply so it S PB or something....
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only 4V on standby - EVGA 850 B2 SuperNova
Hey guys I'm looking for a quick tip from a pro to get this fixed as soon as possible. With the info I have it should be a fairly easy diagnose.
I overloaded a 850 EVGA and it got real hot and made a loud pop. I'm wondering what component I blew. It shut down and now it only has 4v on standby and not enough to start it up. So running ok - to getting hot when I added 2 400w video cards, then pop about 45 mins later and now no power on and only 4v on stby.
Good news is I have a second one for parts. Just looking for a head start to get up as soon as possible. Fuse...
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Re: Power Mac G4 MDD "Mirror-Door" won't power up
These are a fun fix. I haven't read this thread but used to work for a company doing these. The ACBEL was always caps, the 1000uf was the main prob not allowing it to start up, but good to do the others while you're in there, and the samsung ones were a little more difficult. it was always a diode or two and the mosfets. you have to remove the heatsinks.
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