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The three wires to my power supply have come disconnected from the mother board and I need to know where to plug them back in ..

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Check out this vid on u tube http://www.youtube.com/watch?v=o_L2JSneh0w you will learn all about the power supply and were everything plugs in. I f you don't have a anti-static wristband be sure to have another part of your body touching the comp case

Posted on Jan 23, 2009

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Posted on Jan 02, 2017

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POWER SUPPLY LIGHT BLINKING WHEN UNPLUGGED


It's ok just when u plug it back in u have to unplug the big white mother board plug two three seconds then plug back in it will come back on something is wrong with ur power supply might want to replace mother board batterie

Sep 07, 2010 | Sony VAIO VGC-RB42G PC Desktop

1 Answer

Emachine W2646--lights blinking on keyboard,pwr lamp on speaker on,power button on tower YELLOW,NO response! unplugged several hours,now dead,as if unplugged! This happened overnight while shut off...


If you have a Yellow light on power supply, chances are you have blown the power supply.
Even with a PC unplugged in a Bad Storm, I have seen many PC's and Laptops with Supplies shoot.
If you have a little computer savvy, the best thing to do is,
1. Disconnect power.
2. Open unit.
3. Disconnect all Devices from supply.
4. Disconnect 20 04 24 pin power supply connector to mother board.
5. If you have other connectors such as 4-pin 24 Volt acc. you can disconnect that as well.
6. Now plug in the supply. Note... Some supply's have a reset located in the rear of the supply, where it makes its input ( A/C connection. ) If so try the reset. Some supply's also light up or have a service light when sensing input power, some do not.
7. If all looks good and no sparks or flames, re-connect the mother board connection, (only)
Try to power on computer.
Note..... If you still have the Yellow light, Replace the supply.

In some cases, the power supply sees a fault and fold back to a protection mode.
The supply has several Capacitors in which hold a charge and when connected to the mother board retain that charge. Disconnecting the Mother Board 20- 24 pin connector will allow this charge to dissipate.
If all works after reconnecting supply, Your Good To Go.!!!
If not, you may need another Power supply.
Or may have done other damage.

Hope all works out for you.
Try it, it may work...
Readers, please rate your Technician
Thank you.
John Ray
john@johnrraycomputer.com

Jul 15, 2009 | E-Machines eMachines Desktop PC

1 Answer

My PC don't start,the power give a corect values to voltage


just take the ram out and put it back. sometime when the ram hangs which wont let the pc start. and another solution for it try disconnect the power supplly plugs and reconnect them to motherboard. and switch it on hopefully it will start.

Mar 30, 2009 | Computers & Internet

1 Answer

On and off connection to board


The wires from the on-off switch only go to the power supply. From the power supply there will either a 10 or 14 pin connector that is plugged into the motherboard.

Feb 25, 2009 | E-Machines eMachines Desktop PC

1 Answer

Computer Case ULT33180 Powers down about 4 seconds after started


Ive done something similar, I took the CMOS battery off the motherboard and put it back in after about a minute to reset the bios. Unplugged the power supply from the motherboard and flipped the power switch on the back of the power supply (on and off a few times) and plugged the power connector back onto the motherboard. I know it sounds like an odd way of fixing this problem but has worked for me.

Jan 03, 2009 | PSA E-Torque (ULT33180)

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...

34 Answers

Power Green Light Flashing HP Desk Top PC m7250n


During a power outage their is a surge when power come back on the grid (surge can be caused by lighting strikes akso). This surge trips the internal procters inside the power supply to protect the Mother Board, hard drive, processor and fans and any device that pulls wattage from the power supply. Since all these power using devices are trying to pull power at the same time to boot the computer back up one ends up with a loop of surge thrugh the power supply with a protective trip, reset, surge again and trip again. This will continue in this loop as the computer is trying to boot all the devices at one time (Mobo, Hd, processor, cooling fans and other devices). Simoly, more power wattage is being demanded than the protectors will allow at one time causing a protective shutdown followed by a restart followe by a protective shutdown in a continious loop.
The normall sequence for a boot is to boot the board, processor and fans followed by a boot of the hard drive, and other boot devices once the board is energised, NOT all devices at the same time, as this results in an overload and trips the protectors. This protective loop is indicated by the blinking light as the power is turned on and then shut down for protection as the wattage pull is over the demand that the protectors will allow.
Blinking light indictes you are in the protective loop.
SOLUTION: 1. Disconnect the Mother Board connector, with the computer unplugged, this will allow the power supply to reset at maximum wattage upon reboot.
2. Disconnect the Hard Drive power connector and ay boot device power supply cables, this will allow the Mother Board, processors and fans to boot without an overload of the protector inside the power supply.
3. Plug in the computer and the indicator light will be solid green indicating that it is reset and out of the loop.
4. With the computer pluged in and the Power Supply fully energised, plug in the Mother Board. The computer will now boot, and the processor fan will come on and the cooling fans.
5. After computer has rebooted, shut the computer back down and connect the Hard Drive power cable and any other power cablis that were unplugged.
6. Reboot with all cables connected and you are up and running again.

POWER SUPPLIES HAVE AN INDICATOR LIGHT FOR A REASON.
REMBER - BLINKING LIGHT IS AN OVERLOAD OF THE PROTECTORS AND ELLIMINATING THE OVERLOAD SOLVES THE PROBLEM AND THAT THE POWER SUPPLY IS WORKING AND CONVERTING POWER.
NO LIGHT MEANS NO POWER OUTPUT AND THAT INDICATES THE POWER SUPPLY IS NOT FUNCTIONING AND NEEDS REPLACED.

Hope this helps everone with power outages and lightining strikes. It is a rather common problem and can also occure when building a computer and one missmatches the power supply with the board wattage needs. If the board wattage needs are greater than the power supply output you will get stuck in a potective loop eventually. WHEN BUILDING A COMPUTER ALWAYS MAKE SURE THE POWER SUPPLY CAN PRODUCE MORE WATTAGE THAN YOU CAN CONSUME AT THE MAXAMUM LOAD.
Have a great computing experiense.

Jan 13, 2008 | HP Media Center m7250n (ED842AA) PC...

2 Answers

Atx12v1 cable


i think u have problem with ur power supply remove the pin from mother board check the power supply by shorting the green wire and the black wire in the connector if the smps work there is no problem with ur smps contact a chiplevel engineer immediatley ther is trouble in the power supply section in ur mother board

Nov 29, 2007 | ASUS P5S800-VM Motherboard

9 Answers

Psu blinking green light, no power


I read all the solutions, followed the manufacturers instructions exactly, replaced the cmos battery and nothing solved the problem (blinking light on PSU after a power failure and no startup at all). I had ascertained that the PSU was intact by disconnecting all the PSU connections to drives and motherboard at which time the PSU LED stopped blinking and was constantly on.
Just before throwing my computer away I decided to follow the instructions listed by "guest" to unplug the power to the motherboard and then with the power supply back on to plug the cables back into the motherboard. No only did sparks not fly, but it started up and ran perfectly! Many thanks to "guest."

Oct 31, 2007 | HP Compaq Presario SR1230NX (PJ518AA) PC...

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