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New PSU problem

post #1 of 35
Thread Starter 
Ever since I got my new x-connect 500 my pc has been acting strange. Random reboots and such. I check the bios voltages and they are fine but when I check in MBM my voltages drop to 8 on the 12v. Which should I trust? I am leaning toward MBM because of the crashes.
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550BE
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post #2 of 35
well you can't really 'trust' any software based monitoring program. They are all typically not accurate. the only way to tell for sure is to use a multitester and to physically test your voltages.

I would say that with the symptoms your system is showing and the fact that the program shows your voltages being so far out that you have a faulty psu. I would take it back and return it. Get a better psu as the ultra x-connects are known to blow up and take other components with them.

good brands are:
Antec
FSP
Seasonic
OCZ
Enermax
Sunbeam
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post #3 of 35
Yes, I was lucky when my old Ultra popped that it didn't take anything else with it.

Go with the Sunbeam Nuuo. Trust me, I had long experience with both.
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post #4 of 35
Unless you go with one of the brands suggested by soloz2 up there, you're really going with the luck of the draw. It is rare to get a good PSU from those budget PSUs. Ultra isn't known as a good PSU manufaturer in the first place.
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post #5 of 35
Thread Starter 
Quote:
Originally Posted by soloz2
well you can't really 'trust' any software based monitoring program. They are all typically not accurate. the only way to tell for sure is to use a multitester and to physically test your voltages.

I would say that with the symptoms your system is showing and the fact that the program shows your voltages being so far out that you have a faulty psu. I would take it back and return it. Get a better psu as the ultra x-connects are known to blow up and take other components with them.

good brands are:
Antec
FSP
Seasonic
OCZ
Enermax
Sunbeam
Well I doubt I can take it back. Can't test it with a voltmeter since the cables are sealed. I guess I will RMA it.
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post #6 of 35
Quote:
Originally Posted by cdub998
Well I doubt I can take it back. Can't test it with a voltmeter since the cables are sealed. I guess I will RMA it.
You test with a multimeter on the molex plug. There's the 5v and 12v rail to test here.
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post #7 of 35
Thread Starter 
How am I going to turn the PSU on to test the 12v if its plugged in to the mobo? Or am I just using a periferal to test 12v?
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post #8 of 35
Quote:
Originally Posted by cdub998
How am I going to turn the PSU on to test the 12v if its plugged in to the mobo? Or am I just using a periferal to test 12v?
Test with a spare molex, or if you don't have any, unplug a non-essential device and check this way
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post #9 of 35
Thread Starter 
Got it. I will do that tonight.
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post #10 of 35
Just remember:

Turn off your PC.
Insert DMM leads on the molex
Turn on PC.
repeat as necessary

12v: red lead on the orange lead of the molex, black lead on any black of the molex.
5v: red lead on the red lead of the molex, black lead on the black of the molex.
3.3v: For this you will need the AUX Connector Only, or a combination of the AUX and 4-pin Molex. Insert the red probe into either one of the two orange 3.3v connectors on the AUX connector. Insert the black probe into any of the black ground connectors on the AUX connector, or the 4-pin Molex connector.
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