Question about System Power Supplies

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Help me about compaq d330 st

Hello gud people here i plugged my pc into 220v outlet and i donot noticed that my pc is set to 110v as.booooom! sound i heard. about me i have a small knowledge in trouble shoooting.i replaced 3 metal oxide varistor on its power supply because i see that it has burned then i test the power supply itself and it is now ok.then i put it again in my pc put the connector in their proper place.then i turned on it again the two indicator lights light up then the one remains light up and blinking.but it doesnt turn on my pc.the one indicator i mean has a bulb drawing on it.do yout think there are some components of my power supply should be replaced?and when i plug the psu it self the fan is not working.and it there is a possibility that my hdd and motherboard have been damage also?pls help me pls.

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Heloo yaoming.the best thing now is not doing a Rnt on your pc.get a spare powersupply and test on your pc if its working properly and about your current powersupply its still not in a working state as the fan is not working.if you are not a expert in powersupply leave it to a gud tecnical personell in your area.if it would have been a detail report about the powersupply i would have helped from my side.hope you get me.

Posted on May 11, 2008

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Do I have a negative battery system or positive battery system?


If you have a 12volt standard electrical system in your vehicle.
It is both positive and negative. The travel inverter converts this 12 volt DC current into 110v 60hz AC current so you can plug in your electronics that require standard household current to charge/operate.
There is a built in USB port if you device will accept this for 12 volt power. It also has the power oultet with ground for 110v 6hz power.
Link below has a good picture and description. Hope this helps!

http://www.sears.com/diehard-120-watt-ultra-slim-travel-inverter-with/p-02871520000P

Dec 30, 2013 | Sears DieHard 120Watt Ultraslim Travel...

1 Answer

If i put a 110v powersupply in a 220v electricty and burned it would it have effected what its giving electricty to?


While most modern power supplies can handle such a mistake with minimal damage to the motherboard and attached computer components, there is still a high probability that you damaged a component on your computer.

The only surefire way to know if you caused damage is by testing; so it is suggested that you obtain a new power supply, set it on the proper setting, plug it into the machine, and see if it all still works. I'd run some stress tests (there are utilities that can do this for you, or you can have a local repair guy do it), and see if the machine is having any issues.

The most common components that are damaged by a power surge are:

  • Memory
  • CPU (processor)
  • Motherboard
  • Hard Drives
Those are the most common to fail. If you use a new supply, and notice your machine does NOT turn on, chances are, one of those devices is burnt or damaged as well. It is suggested to test them in turn, to see where the issue lies.

Dec 23, 2013 | System Power Supplies

2 Answers

I CONACT THE POWER SUPPLAY AND HE WAS IN 110 V BAT THE VOLT IN MY HOUSE IS 220V WAHT CAN I DO


Hello,
Most, if not all power supplies have a little switch at the back near where you plug the power cord into. It will say 110V right now, you can slide it to the 220v position. If you have already plugged the unit to the wall and tried to power up when it was in the 110v position it may be damaged, in which case you may need to buy a new one.
Regards, Chris

May 19, 2011 | Dell L375P00 (KH624) 375Watt Power Supply

1 Answer

I bought an Acer netbook last week. Love it. Today, I am in Germany and it will not charge. I have an adaptor, but the charge light on the netbook does not come on at all. It boots up fine from the...


Most power adapters are able to run the Euro 220v @50/60hz but make sure. The "Input" side should say 110-240V and 50/60hz if it says only 110v and 60hz then you power supply will not work in Germany. Also check to see if the "output" on your power cord is the same as what is your laptop is. I have mixed up power adapters before and it will simply not work. If you try and plug it in it will fry it. If you have to grab a new power adapter the best store i can think of is a place called Saturn Electronik kinda like Germany's Best Buy. It has a hazard orange sign most times.

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2 Answers

How to power up a compaq 243890-001 power supply without the the motherboard? Its not green to ground


Remove Power Supply
1 . Shut down your computer and unplug the power cord and all cables connected to the system.

2 . Open the computer case and disconnect all power connectors from the motherboard, drives, cards and fans.

3 . Remove the four screws that secure the power supply to the case. These screws are located on the back of the computer case, at each corner of the power supply.

Wire and Start Power Supply
1 . Switch the power supply to the "Off" (sometimes "O") setting.

2 . Insert the end of one wire from a single pole, single throw (SPST) switch into the green wire of the ATX power connector (the largest power supply connector).

3 . Insert the end of the other wire from the SPST switch into the black wire of the ATX power connector. If your power supply has two black wires, connect the SPST to the black wire directly beside the green wire.

4 . Wrap electrical tape around the ATX power connector and wires from the SPST switch to hold them in place. Make sure there is no exposed copper or silver wire from the SPST switch wires.

5 . Turn the SPST switch to the "Off" position, if not already set. Plug the power supply into the wall outlet and switch it to the "On" (sometimes "I")setting.

6 . Connect any other computer components that you wish to operate without the motherboard, such as fans, drives or cards. Turn the SPST to the "On" setting to activate the power supply.


Hope the above information will be helpful to you.
Thanks.

Dec 01, 2010 | Compaq (243890-001) 250-Watt Power Supply

2 Answers

I have a question, why there are 2 voltage in American market? where uses 110v, and where uses 250v? We are a manufacturer of power cords , power supply cords, we really want to know the difference ....


110V is our common household current and 220v is used where heavier voltage is needed, like ovens, stoves, clothes dryers, air conditioners, electric water heaters, arch welders, etc.

Dec 18, 2009 | System Power Supplies

2 Answers

Old power supply no good. bought this dynex 400 watt atx cpu power supply and need to know how to connect wires as there are some plugs that can go in multiple spots.


as long as you have the 20 or 24 plug in and the 4pin square plug in plus the hard drive dvd floppy fans i donot no your motherboard or graphic card so i cannot say anymore only next time write down your conections before removing power supply or get manual for your pc

Jul 30, 2009 | Dynex 400-Watt ATX CPU Power Supply

1 Answer

Computer wont turn back on after power outage


Try unplugging the cord from the back of the computer for about 5 minutes and then try it again

Apr 14, 2009 | Compaq System Power Supplies

1 Answer

Hp 65w adapter compatibility


no it will burn the power supply if half wave rectifier is used in adapter then it may work if you are not technical person then purchase new adapter or convert it from any technician

Nov 19, 2008 | System Power Supplies

1 Answer

Burnt out


If you are technically savvy, you could check for poofed components in the power supply. Possible bad parts include fuse, switching transistor(s), small resistors, and other components. Sometimes when one component fails, it will take some others with it, depending on the circuit design, and exactly how & what blows up. Electrolytic capacitors often ooze a bit, or bulge when they fail. If you see one like that, it should be replaced as part of the repair.

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