Question about Hi-Pro (HPP303W) 300-Watt Power Supply

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Can you turn on an ATX power supply when not connected to a mother board?

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Yes, especially if you are testing the PSU connections with a tester. Just plug the PSU into a wall socket, it does not have to have its connections connected on the motherboard for it to be running.

Posted on Jul 03, 2010

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1 Answer

Connect power supply to mother board


It helps to remove the motherboard to go on power supply connector, and then turns it back on the system board

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1 Answer

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Take the power supply to a retailer or computer shop in your local area. Pretty standard from what I have found out.
Bestec ATX 300 12Z Rev DDR Replacement Power Supply HP 5188 2625 Have a great day.

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1 Answer

The fuse in my BR 300 ATX power supply has blown, what is its replacement part


You need to replace the fuse and dis connect the power supply to the mother board and turn nit back on and if the fuse blowns again then it is the power supply, that is bad, bou if it blowns only when connected to the mother board, the mother has a bad component on it.

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1 Answer

Not powering on my mother board


1st You check the power supply of computer. If the power supply is alright then check the connector.
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  • Check the motherboard LED light on.

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1 Answer

EMachine T6420 will only turn on to start the fans and then immediately turns back off - has Bestec ATX-300-12E power supply - do you think that's the problem


These computers have had problems with the mother board. I had one the same problem, and I did research on the INternet. Best advice.... find a replacement board which will fit this box. Then you will have to re-install the operating system with the cdrom. You may be able to repair the system.
More than likely the power supply is not the problem, but the board is suspect more than anything.

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1 Answer

Missing -5VDC and -12VDC


Could be.Some do some don't.Some have a circuit breaker. Take the cover off and check. Be careful though as some parts in the power supply can hold a pretty significant charge for quite a while even after the power supply is turned off.If there is no fuse or if you change the fuse and it blows again I would say a new power supply is in order. Good luck.

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1 Answer

POWER SUPPLY FOR E-MACHINE


disconnect CDROM,DVDROM or any player for that matter and of course any other peripheral attached so as you remain with only monitor ,mother-board,hard disk connected to the power supply.if it doesn't work repair the faulty supply.

Aug 10, 2008 | E-Machines Bestec ATX-300-12E Rev. D 300w...

1 Answer

PSU problem


The total connection is two part if you disconnect 20*pin one part then four part is other part. when you connect 20 pin in mother board .the four pin connect anther port. then the power supply is on.

Jan 24, 2008 | Computers & Internet

1 Answer

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your connector is of two part.it has total of 24 pin, can be divided into 20 and 4 pins.connect  20 pin  in your mother board .switch on ur psu and connect 4 pins to another port.

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