Question about HP PAVILION M8200N PC Desktop

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When I plug in power supply, green light comes on. Fans turn just a little. Computer won't come on. Unplug psu, wait till green light goes out, plug back in, light comes on, fans turn a little, but computer won't come on. It's a HP Pavilion m8200n. Maybe power supply?

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  • 7 Answers

Check the fan and see if it is busted or any of the cables

Posted on Oct 12, 2013

  • Greg Buck
    Greg Buck Oct 12, 2013

    Thanks, but nothing's busted.

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4 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

jtuckerj
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SOURCE: HP computer doesn't turn on

Your power supply is bad--you will need to replace. I suggest looking at tigerdiect for a replacement.

Posted on Dec 12, 2008

MAD ICE
  • 52 Answers

SOURCE: HP Compaq Presario SR1820NX will not turn on

i worked for hp and compaq it is well known issue to reslove this issue

1#turn off the computer and uplug the power cable from the computer and then hold the power button for 20 second then turn on the computer and the momment you back to desktop screen
go to download driver from hp site and here is the web site http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=pv-43507-1&lc=en&dlc=en&cc=ca&lang=en&os=228&product=1841849 and restart the computer .

Posted on Apr 15, 2009

  • 169 Answers

SOURCE: Power Issue on my HP m7470n

try this link.....it has the steps you need to follow
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01732674&cc=us&lc=en&dlc=en

Posted on Jun 24, 2009

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you bringing a marginal part or connection back up a working state. when it cools or voltage drops it goes to the non working state. hp power supplies are not good to begin with. replacing it will fix it till that one also fails

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what tower? model, the monitor has nothing to do with power and dead fans in the tower.
'Sounds, (and silent to) means the PLUS in the PC is dead.
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here is the chain of events, ! to get noise (fans)
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I plug it in, and the fans spin briefly, but the computer doesn't seem to get power. When I unplug the power supply, however, the green light in the back of the power supply turns on, as well as a green...


Because the capacitors in the PSU retain a charge, the LED lights will glow after the power is switched off, these will fade out after a few seconds.

It would appear that at first glance, the PSU is indeed bad and the only way to eliminate this is to replace it with a known working one (I'm also assuming that the 4 pin yellow and black CPU plug that comes off the PSU is plugged into the motherboard?)

If this works than it was your PSU

If it does not work, there are several other possible reasons why this is happening:
Before doing the tests below, physically inspact the motherboard. Look for blown or buldging capacitors (the small cylinder objects), brownish residue, bulging sides etc are symptoms of a dying mobo. Check there are no objects causing a short on the board (you may need to remove the board to check) also, check the brass standoffs are not contacting the uninsulated parts of the board
  1. Faulty hardware: remove all the power rails to the drives and optical drives and test
  2. Bad Ram: remove all ram modules reboot and see if it beeps several times, replace each ram module in turn and retest
  3. Bad CPU (common fault), replace CPU with a known good one, retest.
  4. Bad Motherboard power regulator: No solution for this other than to replace the board

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the PSU has Problem . It is not supplying enough voltage to boot the PC, capacitors inside the PSU are weak or damaged. Its dangerus to open the PSU coz, Capacitors have high voltage currents. If you have the Knowledge of electronics, then open the PSU and detect the Weak or Leeky Capacitors and replace them with new one( this method is for experiment and thrill) . But the replacement new PSU is better , perfect and cheaper then repairing the psu from outside. best of luck

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Green light on power supply flashes rapidly when I plug the computer in. Computer will not power up at all (no cooling fans start, no lights illuminate and no beeps come from the unit). When the power...


if the cooling fan on your PSU power supply unit does'nt spin when you start your PSU is faulty if it does then
replace all the leads that attach to your hard drive including electrical extensions + IDE,SATA the ones that attach from your motherboard to hard drive
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty or just replace them they are probably old and faulty ?
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It could be.

When you switch on after it has been turned off for a while look at the fan on the PSU as you switch on.

If it spins or tries to spin for a very short time then I would indeed suspect the psu.

If however the psu fan does spin for longer and you can hear any beeps then that would be an indication of a different problem.

Should that be the case then check here.

http://www.computerhope.com/beep.htm

or here

http://www.pchell.com/hardware/beepcodes.shtml


  • If you found this information useful please click

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This is an easy fix so here you go nice and simple:

Problem: Your motherboard circuit has been cut.

Causes: Power disconnected during operation. Power outage or short in the surge protector.

Symptoms: Flashing green light on both motherboard and power supply. System will not power on.

Solution:

Step 1: Ensure that both the power supply and the motherboard lights are flashing green, not solid or off.
Step 2: While the power is on, disconnect the power supply from the motherboard. This connection is the largest of the connections and should be listed as the 'P1' or 'Primary' power connection.

Step 3: Wait until the green light on the motherboard stops flashing and check to ensure that the green light on the power supply is now solid. If it is not solid, disconnect the power to the power supply and wait until the light turns off completely. Then reconnect, it should be solid now.

Step 4: While the power is on, reconnect the P1 connection to the motherboard and you should now see that the light on the motherboard is solid.

Step 5: Power on your PC. The problem should not persist.

Warnings: If the power supply light remains flashing after you have restored power to it while it is disconnected from the motherboard, it may be a system failure in the power supply itself requiring replacement. Always be careful when working with an active or live power machine.

I hope this helped! Good luck!

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press the num lock key light .....

if the light doesn't blink Ram is the fault...

Remove the Ram and Take white Eraser and clean Ram pins and

fix the ram .. Mostly it will work....

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