Question about HP Bestec ATX-1956D 200w HP Part No 0950-4106 (ATX1956D) Power Supply

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My part not turn on wt' can i do

I connect it b't not turn on wt' can be the problem?

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Not worth wasting time diagnosing/repairing a bestec...

afraid to say purchase a new part...

Matt

Posted on Jan 22, 2009

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Psu wont turn on


Test the PSU. Unplug it from the motherboard and then with nothing connected, short the green wire to any ground (usually a black) using a paperclip and it should come on and stay on if the problem was with the motherboard/computer but if it shuts down, then you know the problem is the PSU itself.

If the PSU stays on under no load, then one possibility is you had too much connected to it and it shut down as a protective feature. The Bios would not beep if the PSU is shutting itself down. Also make sure you have the internal speaker connected. It's possible you just can't hear the beep because there is no speaker connected or it may be connected to the wrong place.

Don't throw away a defective power supply. It is worth a couple bucks as parts for an electronics enthusiast. Keep it out of the landfill.

Jan 16, 2013 | RaidMax System Power Supplies

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Replaced smoked RaidmaxKY-520ATX power supply. Replacement power supply does not turn on. Which wires are remote power up from mother board ?


You can actually test the power supply before connecting it to the motherboard. Take a look at the power supply pinout by CLICKING HERE. Jump pin 14 with 13, 15, 16, or 17 to turn it on. You will have to get a manual for your motherboard to see how the front panel connector is configured with your case power switch. If you have that manual you can jump the 2 connector pins for the power switch to test the p/s from the motherboard.

Jun 03, 2011 | RaidMax (KY-520ATX) 420-Watt Power Supply

1 Answer

I took this laptop apart to try and fix the sound jack and speakers, in the process of doing this I think I damaged a couple of pins on the flat ribbon cable with 12 pins that goes from the power button to...


the smoke means that you have a short circuit somewhere on your laptop double check the connections that you have made you might have to replace the flat ribbon make sure there is no dust at these connections you have to keep a computer free of dust/causes static electricity otherwise it can cause it to overheat and many other problems
hope this helps

May 12, 2011 | Acer System Power Supplies

2 Answers

My old power supply had 4 wires going to the front panel on\off switch. The Dynex power supply does not support the switch. what do I use to turn the unit on or off. Will the unit function with out the...


Normally the front panel on/off power button and the front panel reset button plug into connector pins on your motherboard.

If you can find a User Manual for your motherboard it will show you exactly where the switch leads plug in on the motherboard. The motherboard's manufacturer and model number will be printed on the board somewhere.


Good luck.

Feb 05, 2011 | Dynex DX-400WPS 400-Watt Power Supply

1 Answer

I think my power supply is dead. Computer unresponsive, no cooling fan, etc. Is there a way to test the output with a voltmeter? Thank you.


You can use a paper clip and jump the connection from the green wire to a black wire next to it, this will force the power supply to turn on. If the PSU turns on, the means your issue probably lies elsewhere in the system, like a bad power switch or connection.
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Can you turn on an ATX power supply when not connected to a mother board?


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.

Jul 03, 2010 | Hi-Pro (HPP303W) 300-Watt Power Supply

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Codegen 300 wt supply


You can do this doing shortcircuit between the green and a black wire in atx cable

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Ultra X3 800 watt power supply


yes PWR SPLY must be connected to MB and MB must be grounded when bench testing. thats the quickest easiest way to check..

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