Question about HP Pavilion A210N (DF210A#ABA) PC Desktop

1 Answer

Hard drive light is solid, nothing on screen and i hear the fans work and cd/dvd drives do not open green light is on pack of power supply can not here hard drive come on

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  • dialcat Feb 09, 2010

    new ps does not work( no change) if i unplug the 20 pin conecter from mother board and ground the green wire(po) cdrom drive works

  • dialcat Feb 09, 2010

    ps has same wire colors.unlplug cdrom and leave power conected and cdrom will open, but nothing on screen. not sure about history of pc its a friend of mine. use static strap and bench with card board bottom.it is full of dust so no it has not been cleaned.

  • joecoolvette
    joecoolvette May 11, 2010

    I need to ask some additional questions, and propose some tests. 1) Have you had problems with your computer prior to this? 2) Have you changed any hardware inside your computer, or cleaned the Processor, and Heatsink, and applied fresh thermal paste, or cleaned the inside of your computer? 3) If you did so, did you have the computer unplugged from power, And did you observe anti-Static precautions by relieving your body of Static? {Work on a table. Touch the metal frame of the open computer case, prior to reaching inside the computer. If you get up in the middle of working on your computer, walk away, then return, touch the metal frame again. If you have a carpeted floor underneath your table, refrain from swinging your feet back, and forth} 4) Is the 4-pin ATX power cable from the Power Supply, plugged into the motherboard? {Looking at the motherboard with the Processor to the top, Ram Memory to the right, there is an aluminum finned Heatsink below the Processor. To the Left of this Heatsink, is the square white connector on the motherboard, where the 4-pin ATX power cable plugs into} 5) Is the new Power Supply - compatible with the Asus P4G533-LA motherboard that you have, In That, the 20-pin ATX power cable connector from your power supply, has the color code of the wires the same as the old power supply? To clarify this last statement: For a period of time HP changed out where the wires go in their 20-pin ATX motherboard power cable connector. Their computer parts were made to fit that computer. Yellow is 12 volts, Red is 5 Volts, Orange is 3.3 Volts, and any Black wire is a Ground wire. {The Green wire is the Soft Power On wire. Connecting it to a ground with the power supply plugged into power, will turn the Power Supply on. Hence why your CDROM works. It uses 12 Volts, by the way} Look at the old power supply's 20-pin connector, color code of the wires. Compare where they go the socket holes of this old connector, compared to the new power supply's 20-pin connector. The color of the wires must be in the same socket holes, for the new power supply connector, as it is in the old power supply connector. Using a power supply from an aftermarket power supply manufacturer, that it's 20-pin connector color code of the wires, does not match up with the old HP power supply 20-pin connector, will result in frying out the Motherboard, and possibly the Processor, Ram Memory, and graphics. If this statement holds true, it may be that you had a bad power supply, and have now plugged in a power supply that it's 20-pin ATX motherboard cable connector, did not have the correct wire placement, and the computer could now be toast. Hopefully this statement does not hold true. Just something to check on. 6) Do you see any bad Capacitors on the motherboard? This is a link that shows you what Electrolytic Capacitors look like, and visual signs of capacitor failure,http://www.capacitorlab.com/visible-fail...

  • joecoolvette
    joecoolvette May 11, 2010

    Bad power supply. Has a weak voltage power rail. 1) ALL the lights use less than 1 Watt of power. 2) EACH fan uses 2 to 3 Watts. 3) A typical Processor uses 55 to 125 Watts, depending on what Processor it is. You don't even have enough power to open an optical drive. Replace the power supply. If you would like to do a test that requires a $12 power supply tester, let me know. Just state so in a comment.

  • joecoolvette
    joecoolvette May 11, 2010

    I would like you to remove that flat ribbon cable, (Interface cable), from the CD and DVD drives. (Power to DVD drive also) Use Q-tips to dislodge the heavy gunk inside the computer, then follow with a can of compressed air for computers. Take the ram stick/s out, clean the gold plated contacts with a pencil eraser. Clean the ram slot/s out with air, reinsert the ram stick/s. Use a jumper wire to bypass the Power On switch. There will be a spark, notifying you in advance. I use an insulated jumper wire that is the same gauge as one of the power supply wires, about three inches long. 1/2 inch of insulation stripped off of each end, ends twisted tight, wire bent into a U shape. One end is inserted way down into the socket of the Green wire, in the 20-pin ATX power cable connector. The 20-pin connector is plugged into the motherboard. Has to firmly touch the metal pin connector, that is way down in there. Then with the wire firmly stuck in position, I plug the power supply into power. Now the other end of the wire goes down into a socket hole that has a Black wire. There is a Black wire right next to the Green wire, but ANY Black wire will do. The Green wire is the Soft Power On wire. Any Black wire is a Ground wire. You are just completing a circuit, and bypassing the Power On switch. If the Power Supply is KNOWN to be good, (You can get a bad one, even if it's new), and you bypass the Power On switch, the Power Supply will come on. IF it Doesn't with the 20-pin ATX power cable plugged into the motherboard, and Does with the 20-pin ATX power cable unplugged, then I suggest the motherboard is toast. (This is with the inside of the computer cleaned out thoroughly)

  • joecoolvette
    joecoolvette May 11, 2010

    Tests: Computer unplugged from power, computer case open, de-static your body. Remove the interface cables from your optical drive/s, and power cables. Remove the interface cable from your harddrive, and it's power cable. Make sure the 20-pin ATX motherboard power cable is plugged in. If you still have that jumper wire to the green Soft Power On wire, remove it. Plug the computer into power, do not reach inside the computer while plugged into power. Not only is there a safety hazard for you, but also for the computers hardware components inside, should you reach inside, and touch anything. Press the Power On button. Do you get the BIOS POST screen? (Additional info about the wires that go into a 20-pin ATX power cable connector, and also you can scroll the page all the way to the top, and click on the - 4-pin ATX +12 volt power cable for more info on it,http://www.playtool.com/pages/psuconnect...

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  • 79 Answers

Check the power cables frm the smps connecting the motherboard and cd/dvd drive ..... also reseat the hard drive

Posted on Feb 08, 2010

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1 Answer

Aux power led light is amber on dimension E521


I think your problem is your memory or video card.

Below are some steps that I recommend.

When you plug in the power cord is there any lights whatsoever on the computer?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the laptop is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the computer and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoever when you press the power button.

Maybe you have a Static Charge Buildup. Remove the Power Cord, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in and hit the power button to see if it boots.

Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

Maybe your power supply is bad. Sometimes there is enough power to make the power light or some other lights come on but not enough power to make the fan turn on or hard drive spin.


Below are links and info I found from Dell's Website based on your model.


http://support.dell.com/support/edocs/systems/dime521/en/SM_EN/specs.htm

Controls and Lights Front of computer:

Power button - push button

Power light
green light - Blinking green in sleep state; solid green for power-on state.
amber light - Blinking amber indicates a problem with the power supply inside the computer. If the system cannot boot and there is a solid amber light, this indicates a problem with the system board (see "Power Problems" in your Owner's Manual).

Diagnostic lights
four lights on the front panel (see Diagnostic Lights.)

Standby power light
AUX_PWR_LED on the system board

Hard-drive activity light
green light - When the computer is reading data from or writing data to the hard drive.

LAN indicator light

green light - Solid green indicates that a LAN (local area network) connection is established.


http://support.dell.com/support/edocs/systems/dime521/en/SM_EN/adtshoot.htm#wp1056411

Jun 03, 2012 | Dell Dimension E521 (D10E16) PC Desktop

1 Answer

Black screen no cursor no keyboard use


When you powered on the machine did you hear any beeps, hear the fan running, the disk drive running, lights blinking, hear the cd drive click, see the light on the cd drive door for a second or two when it clicks? If these things are happening you are getting power. If not, your problem might be with your power supply, hard drive or motherboard. Remove the power cord, then press and hold the power button for 30 seconds, then plug it back in and press the power button. if it boots you had a static charge. If you get nothing at all but a silent system your power supply is bad. If it sounds like your computer is running but you can't see anything on the screen you might have a problem with your screen or video card. If you have another monitor try using it and see what happens. if it works so you can see things then your monitor was bad. If it does not work with another monitor but you still hear fans, and see lights and hear the disk drive spinning, then your video card is probably bad.

Mar 17, 2012 | Gateway Computers & Internet

1 Answer

I switched the Pc on after connecting all cables, the monitor didn't come on thats when i found that the power pack must have died as icould smell a bit of burning. the motherboard light is on ( green )...


most power supply units will fit you can get a larger wattage output eg: heavy duty if you have added any more devices to your computer more RAM,a larger hard drive,more cd/dvd drives these added will put a greater need for wattage output on the PSU
you should check all the electrical connections before you make a decision and make sure they are the same as as the ones that you will need to run your computer also
check the measurements inside the frame to make absolutely sure it will fit
you can get lots of PSU

Feb 24, 2011 | Alienware PC Systems Alienware True 480...

1 Answer

Solid green light until power button turned on the light goes out disconected power supply from mother board and everything else and plugged it in nothin happens is it dead Jim


Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive
Test the leads that attach to your ((hard drive from the motherboard)) or replace all the leads that attach to your hard drive including electrical extensions + IDE,SATA and 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 even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error
hope this helps
dont forget to vote

Feb 02, 2011 | HP ATX-300-12Z (ATX30012ZBD) 300-Watt...

2 Answers

Light in front comes on but nothing else



Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to boot

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your motherboard to your hard drive make sure they have a secure connection and are not faulty or just replace them there probably old and faulty

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 ?
hope this helps

Dec 18, 2010 | Dell Dimension E520 PC Desktop

1 Answer

When i plug in my power pack nothing happens, the green light on the pack is light at first then fades off.There is no power and i cant turn the comp on. Is this a problem with m battery, pc, or power...


Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to fail to detect a hard drive continue on a cycle or to shutdown

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA and

the leads from your motherboard to your hard drive make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
problems
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 ?
hope this helps

Dec 14, 2010 | Computers & Internet

1 Answer

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 ?
hope this helps

Oct 21, 2010 | HP ATX-300-12Z (ATX30012ZBD) 300-Watt...

2 Answers

Desktop shutdown. will not come back on. Green light flashing.


Clarify please:

can you hear the hard drive running ? see the cpu cooling fan spinning ? operate the cd/dvd drives, see nothing on screen though.... yellow standby light not the solid green light.

compdoctor2005@btinternet.com


Dec 30, 2008 | Compaq Computers & Internet

1 Answer

Compaq Presario 4400us


Either the new power supply you purchased is not functioning correctly. But, assuming it is now that you are getting some form of power to your PC, it is very likely the motherboard. Whatever fried your old power supply (or it could have just been the power supply itself) most likely fried your motherboard in the process. Probably not the CPU since the MB can't even post.

Jun 21, 2007 | Compaq (388746-001)...

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