Question about Computers & Internet

1 Answer

Need to find a short

My desktop died, again. It died a couple of days ago, I traced it to the power supply. I picked up a new one with my fingers crossed and Threw it in. The pc powered up (wasn't before obviously) but would not boot from HDD. I put in my xp cd and was going to try to do a repair. I still had the side of the case open and I moved some wires just a little and it died again. Lost the PSU. I obviously have a short somewhere but I have no idea how to locate it. I would rather rebuild using the components I have, Graphics card, tuner, DVD roms, etc.. but I am worried that When I put it together, there may be an issue with one of those and take out the new system. Does anyone know how to locate the exact location of the short. Remember I am losing PSU's and do not want to do any trial and error type troubleshooting. Thanks.

Posted by on

  • 3 more comments 
  • seth veloso Jul 18, 2009

    I belive we got it fixed. The first psu fried, could hear it whining, the second one is still good, worked after unplugging it from the mobo for a bit

  • seth veloso Jul 18, 2009

    Hey man, thanks for your response but we got it fixed, the mobo is bad. The second psu is still good, the mobo was locking it up. It would work again after unplugging it from the mobo then back in again.

  • seth veloso Jul 18, 2009

    my bios setting? not sure how my bios settings would keep my pc from powering on lol

  • brownleopard
    brownleopard May 11, 2010

    It could be the molex connector on the motherboard is loose and/or faulty. If you hold the wires stable and move just the connector does it still shut off? Also, is the wattage from the p/s high enough to run your system? I've seen people swap out p/s for a 300 watt when their video card and CPU take almost that much at full load. Toss in the HDD and DVD/ROM and the system goes silly.

  • Dick
    Dick May 11, 2010

    When you say, "lost the psu" that means it is broken and no longer usable to me. How have you tested this? Your description of the problem makes me suspect the motherboard may be mounted improperly, shorting out on one or more metal spacers installed underneath the motherboard for mounting a different board.


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 76 Answers

Sounds like you may have lost your BIOS setup. Go inand setup for default and see what happens

Posted on Jul 18, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a Dell 4550 that went completely dead last year. I replaced the PS and it returned to normal. A few days ago, it died again. Thinking it was the same PS problem, I replaced the PS again with a new...

I'm getting off your point but did the power supplys you purchased after the first have increased Watts. Obviously one reason the first went out was the you needed an upgrade on the PS. If something was added to the machine that would take up more resources thus the need for a bigger power supply.

Aug 14, 2011 | Dell Dimension 8400 PC Desktop

1 Answer

Couple of days ago my van mitsubishi l300 1990 did not start.battery ws old so thought it had died, jump start didnt help. put a new battery on today, started for 2sec and then died out, pushing accel did...

do you have a diesel or gas engine? if its gas most likely you have a grounded ignition wiring. the short may be intermittent thus it starts then stalls when the voltage supply to the ignition coil is disrupted when the wire gets in contact with earth

Jun 25, 2011 | 1990 Mitsubishi Minivan

1 Answer

Hi, there sems to be no power to the set .shortly befo the set died, the standby failed to show ,but after a short while came on and worked normally for a couple of days then just packed in.

it seams to be a dry contact in Powere supply section pls re solder all the component in power supply section and power code as well

Aug 26, 2010 | LG Televison & Video

1 Answer

I bought an xps 210 2 years ago. The power supply is dead

It is possible that you picked up a faulty power supply, slim, but possible. Chances are pretty good that you have one of your components drawing too much current on your power supply. The largest power drain comes from your processor and the graphics accelerator cards, however it could be a faulted motherboard or hard drive. You can replace your power supply with a larger capacity unit from a known good manufacturer. If you increase the wattage capability and look with the side off to see if any component is generating a lot more heat than usual. A larger capacity power supply should be able to handle the unusual current draw.

Apr 18, 2010 | Dell XPS 210 PC Desktop

1 Answer

No power cpu will not turn on or off

Either the power-supply has died, or the ON/OFF switch has died.
Trace the two wires from the ON/OFF switch to the two pins on the motherboard.
Touch a metal screwdriver to "short" the two pins, to simulate pressing the ON/OFF button. If your computer starts, then the ON/OFF button is defective.

Or, replace the power-supply.

Apr 02, 2010 | Dell Dimension 2400 PC Desktop

1 Answer

Subwoofer Emits a Buzzing Tone

The 2200 uF capacitor in the power supply has gone bad and the humming is a 60 Hz from the rectification of AC to 18 vDC.  Either get a new power supply or take apart the power supply and replace the bad cap.

Mar 16, 2009 | Altec Lansing AVS 500 Computer Speakers

1 Answer

Unknown error

Re-seat Video card, replace memory.

Feb 17, 2009 | E-Machines eMachines Desktop PC

4 Answers

Dimension 5150 won't boot

check your hard drive I think press f2 or f12 for hard drive test or reboot. If it is the hard drive and its out of warranty check w/new egg just bought one for my 510 dont forget to check hrd drive connection type ata or sata good luck

Nov 09, 2007 | Dell Dimension 5150 (DIM515MIN) PC Desktop

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers


Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides