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Is it the power supply?

derrickam
derrickam asked
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Medium Priority
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Last Modified: 2010-04-25
Hello,

I just put together a new system to upgrade my old computer.  it is a P4 3.0, dragon 2 board, 1g Viking Ram in a Diablo case 450ps.   The video cards, HD, Zip, CD, DVD came from the old system.

We put the new on together and it ran perfectly.  I uploaded all the software etc, and had it working fine.  Sometime in the nite is must have shut down. You can tell because the diablo case has an LED fan that glows brightly.    The Green light was on, the red was off.  The green light is on on the montherboard.

When I shut off the power and try to turn it on the fan lights & red power light blinks quicky and goes out.  The stand by (green light) and board light stay on.  Other than that nothing happens.  Since everything was working fine and now suddenly nothing my guess is that the new PS just died.  Do you think this seems like the problem?
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Commented:
Thanks,

It actually was the power supply.  We took an old smaller one and powered up the board by itself and everything was good.  We just needed a bigger power supply than the "450" which I think is junk by the way, that was supplied with the Diablo case.  

Thanks!
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Top Expert 2012

Commented:
If you want a recommendation, I would look for Enermax - they make reliable robust power supplies that meet demand.

Enermax 460W power supply $77
http://www.newegg.com/app/ViewProductDesc.asp?description=17-103-443&depa=0

There's also a 365W unit that is cheaper, but still puts out 26a on the 12v rail.
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Commented:
you don't need a bigger one just use two psu  i am going to do that soon

you can put like all extra stuff  like fans and some drives use the bigger one for the the rest       this way so you can maybe put it in stand by and turn off a power supply so it is less power consumption

Author

Commented:
cool. Thanks!  So far so good.  
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Top Expert 2012

Commented:
The problem with two power supplies is that ATX units only turn on via the connection to the motherboard.  You can't just turn them on and off at will; they are triggered by the motherboard 20-pin connector.
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Commented:
That is NOT true on some there is a switch on back of the PSU to turn it on or off
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Commented:
besides if you have an AT PSU you can have it to power up the optional stuff
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Top Expert 2012

Commented:
If you've tested ATX power supplies, they still won't provide current until the motherboard sends the ok signal - that's part of the ATX specification.  This does not apply to AT power supplies.
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