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Computer wont switch on

I already checked power supply and fans,they are working perfect

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

map9966
  • 2351 Answers

SOURCE: Intel D865PERLL Motherboard will not power up

Hi nkda2000, this is as close as I could find for power schematics. Intel D865PERL
http://support.intel.com/support/motherboards/desktop/D865PERL/sb/CS-027143.htm

(There is no Intel D865PERLL board). Sure it's a typo. Have done searches for D865PERLL & found it (Not on Intle's web site) but when looking at the specs it's listed as D865PERL. (One L ) not two.

I hope the Technical Product Specification pdf can help you check the power on the motherboard.

Luck!

Mike

Posted on May 08, 2008

  • 25 Answers

SOURCE: Power supply Ok.But CPU fans started with seconds It's stop.

sounds to me like your mainboard is bad, i bet if you closely inspect the capacitors around the cpu one or more is bulged out or leaking

Posted on Feb 15, 2009

  • 628 Answers

SOURCE: When is the Hipro HP-A2007AE power supply cooling fan to be on?

The fan should run constantly. It needs to be replaced. Otherwise the power supply will shut down when it gets hot. It can usually be replaced, but if the supply is cheap, just go out and get a new one.

Posted on Mar 17, 2009

  • 125 Answers

SOURCE: intel d945gnt board will not turn on

Yes, 95% percent of the time, when a power supply dies, it takes out other components in the computer, such as the motherboard, memory and drives. CPU usually doesn't te hit but the motherboard and maybe memory. I would try a new motherboard first, then memory...

Posted on May 30, 2009

  • 2 Answers

SOURCE: switch on problem no processor running

845gvsr no display given ram beep but ram ;ram ic and bios is ok what can i do sir

Posted on Jul 27, 2009

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1 Answer

Computer won't turn on.


There must be a problem with your power switch on your computer casing, or motherboard or power supply.

Detach your power supply and try this, to check if your power supply really works. If the auxiliary fan will turn, your power supply is good
25627818-lfqggqo5gl3n2v4xynrvsb5u-5-0.jpg Testing your power supply and motherboard as seen on photo
25627818-lfqggqo5gl3n2v4xynrvsb5u-5-2.jpg If the cpu cooling fan and power supply did not turn the fan, but you have checked already the power supply that is working then you can conclude that your motherboard is need to be replace. But the power supply and motherboard and working, meaning to say your computer casing need to be replace or try fixing the contact of the switches attach to your casing.

Have a good day.

Apr 04, 2015 | Dell Studio Xps 9100 Desktop Computer

1 Answer

Wont power up


My wont turn on too, There is a orange light on the tower, Green on the left, Battery ovel, If I push the restart button, also switch the power supply switch in the back, also unplug from it, Sometimes does it, Do ou know whats causing this to happen, Please let me know Thanks

Jan 26, 2013 | Asrock K10N78M Motherboard

2 Answers

COMPUTER SWITCHES IT'S SELF OFF AND WONT SWITCH BACK ON UNTILL YOU UN PLUG POWER SUPPLY AND RE PLUG POWER SUPPLY BACK IN?


Try new heat sync paste on top of the CPU and clean the areas of dust if any. Mine does the same thing I did this will all of my computers as well as all my clients computers as a preventive measure for overheating. Also it may be your power supply unit as well. So check out those two things and do necessary repair if needed that should solve the issue. It worked for me.
John

Apr 12, 2012 | Computers & Internet

1 Answer

Computer wont start after pressing the power switch.. the processor fan stops together with the power supply...what will i do...i already check the power supply, memory and the different cables inside the...


check *********** board if there are some capacitors that are deformed, busted parts may do the problem , try first to pull out socket,connections then place it back again 2-3 time to avoid corrosion.

Jul 07, 2011 | DFI NF3 250-AL NVIDIA Socket 754 ATX...

1 Answer

Having trouble w/ on / off switch ... have already replaced power supply ... computer turns on and off at will ... but not necessarily when you want it to ... replacement part number for...


"computer turns on and off at will"
May be a wattage issue considering that you replaced the power supply. The power supply may no be providing enough power to the Compaq Presario 6370US, you must have at least a 400 Watt Power Supply to help the computer run. Also, check to see if all your internal fans are working, i can also an overheating issue.

Feb 27, 2011 | Compaq Presario 6370US (OBDA219A#ABA_1) PC...

1 Answer

Power supply works but pc doesn't power up no lights and fans dont work


Have you checked the power supply in different system? If yes then first replace CMOS battery and switch the CMOS battery jumper. And while doing this please unplug the hard disk or optical drive data cables and power. If it does not work then check the power switch is working or not or it is perfectly connected with the front panel PINS on the motherboard. If it is not connected perfectly computer will not start after pressing power button.
Second Level Test : Remove the CPU Fan - replace the CPU perfectly - again place the Fan.

Third Level (motherboard test): Just take the motherboard removing CPU,RAM, SMPS - use another same type CPU, RAM and SMPS - if it does not work so it is motherboard problem. If it works may be CPU problem.

Jun 12, 2010 | Gigabyte GA-8LD533 Motherboard

1 Answer

8200 inspiron wont start up


Hi

Assuming the fuse in the plug hasnt blown...do the fan(s) in the power supply go round? If not then the power supply needs replacing.

Sep 25, 2009 | Dell Inspiron 8200 Latitude C840 Laptop...

1 Answer

Just Plain stopped working


I'll assume you've already checked the obvious possibility that the outlet the computer is plugged into is not working.

Here's a diagram of the main power plug from the supply:
b66d358.jpg
With a short wire (like a bent paperclip), short the green wire PS_ON to the ground pin on either side of it (in the same row, not directly across in the plug!!). The power supply should start up if it's working properly. If the supply doesn't come on, replace it. If it does, then you'll need to replace the main board.

That's the way electronic components usually fail. The initial surge when you turn something on causes a part that was ready to fail to go bad, the same way a light bulb usually burns out when you turn the light on, and not while it's already lit. So the computer was working fine, then the next time you turn it on....pffft!

Mar 30, 2009 | Ultra 500Watt ATX Power Supply with 2-80mm...

1 Answer

With destop wont turn on


Robert was right make sure your computer is unplug from the power strip. now check the power supply cable to the mother board, then check the power cable to the harddrive, and then the DVD.once you put the power cable back into the computer you should get the power supply fan should come on, and the cpu fan should come on.

Next once you hit the on/off switch and green light should come on.

Jan 23, 2009 | Dell (9228C) 200-Watt Power Supply

2 Answers

Foxconn 760GX K8MC-S


Hi...

You already have done your best and yet it still does not work... Same problem I have last week... but I have changed the motherboard with anew one and it worked perfectly again... That is I had to break my piggy bank.

Sorry my friend...

Jun 17, 2008 | Foxconn 760GXK8MC-S Motherboard

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