Question about Dell NPS-110AB (NPS110AB) 110-Watt Power Supply

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Powersupply No voltage from the power supply the fuse is okay.

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First you switch on the supply by shorting (green and black )wire in output socket of smps.then check output voltages.If there is no voltage then check switching transistors or protection transistos that is placed on first hit sink.check primary bridge and capacitors for open.

Posted on May 24, 2008

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Manuel for tenma powersupply model 72 2085 voltage not showing


Get help from this electronics repair book that is useful for repairing any power supply problems and also television repair guide.

Sep 17, 2011 | Tenma Power Supply

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unplug the power supply from the wall, hold the power button down for about 10 seconds to discharge the powersupply and motherboard. plug the power supply back into the wall and try to start the computer again..
Post here again if that doesn't help..Regards..

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Flashing orange light on front of my dell 5150 desktop, will not turn on, even after unplugging for one hour. when plugged back in, flashes orange, no fan, no power. JK


So basically you cannot get the pc to POST. Meaning you have just a black screen when you power on the pc, right?

First off, did you attempt to update BIOS before this happened. 90% of the time this is caused by a corrupt bios.

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button.
Try to boot the pc.

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker, put the powersupply in a different pc, or try a different powersupply in the problem computer.

Could be bad ram, motherboard, cpu, powersupply, videocard.

Jul 05, 2009 | Dell System Power Supplies

1 Answer

Dell 4400 won't power up Flea light works


For non-BIOS issues:

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button (this discharges any residual power in the capacitors).

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker (20-25 dollars at local PC shop), get the supply tested at a PC shop (usually a free service), put the powersupply in a different pc, or try a different powersupply in the problem computer.

If the Powersupply checks out ok, then you will have to do a process of elimination to find out what part or parts are the culprit of the No-Boot.

Start by pulling all the ram sticks if you have not already. This is the easiest components to check and usually a culprit.

Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

If it is not the RAM, you have to continue removing items such as sound cards, un-plugging hard drives and optical drives, other PCI cards. Do this one at a time until you find the culprit. If a POST screen, meaning you can see Anything from the PC brand name to Motherboard brand name appearing on the screen. The PC may not boot to windows, but it Does post at this point, and with that the problem is resolved. If windows does not load, then you have a new problem. Best dealt with asking a new question.

Good luck!
Brian

Jun 28, 2009 | Dell Dimension 4400 Power Supply ** FREE...

1 Answer

I have a HP M 7160 that will not turn on. There


For non-BIOS issues:

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button (this discharges any residual power in the capacitors).

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker (20-25 dollars at local PC shop), get the supply tested at a PC shop (usually a free service), put the powersupply in a different pc, or try a different powersupply in the problem computer.

If the Powersupply checks out ok, then you will have to do a process of elimination to find out what part or parts are the culprit of the No-Boot.

Start by pulling all the ram sticks if you have not already. This is the easiest components to check and usually a culprit.

Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

If it is not the RAM, you have to continue removing items such as sound cards, un-plugging hard drives and optical drives, other PCI cards. Do this one at a time until you find the culprit. If a POST screen, meaning you can see Anything from the PC brand name to Motherboard brand name appearing on the screen. The PC may not boot to windows, but it Does post at this point, and with that the problem is resolved. If windows does not load, then you have a new problem. Best dealt with asking a new question.

Good luck!
Brian

Jun 20, 2009 | Bestec (ATX100-5) (ATX1005B) Power Supply

1 Answer

Schematic / wireing diagram


Easiest thing to do would be to meter out your power connectors, and locate the various voltages that way. Use a multimeter that can read up to 20v DC, and go round the connectors. On most PSU's the black is negative, and the various colours represent the other voltages.

Jan 11, 2009 | IBM Open Box 49P2166 X345 514W REDUNDANT...

2 Answers

E-Machine Computer


you need to test the large connector from the powersupply to the circuit board inside the computer. You should be reading small single volt numbers. More than likely its a bad powersupply though.

Oct 19, 2007 | System Power Supplies

1 Answer

My FSP145-50N power supply won't come on, I think it is the fuse, but wher is the fuse located anyway?


Hi, remove the power supply from the case, [easy job] examine it and yuo will see about 4 or 5 screws holding the cover together.

Seperate the 2 parts of the cover and study the printed circut board. The fuse will be a glass tube type fitted to this board. Some PSU's have the fuse soldered in place and you may need to solder a new one in, otherwise it will just unplug and replace.

MAKE SURE YOU REPLACE THIS FUSE WITH THE SAME VALUE FUSE, available from computer repair or electronics store. regards mistyman

Oct 11, 2007 | NEC FORTRON/SOURCE 145W POWERSUPPLY...

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