Question about HP Compaq Presario Media Center SR1750NX (EL445AA) PC Desktop

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Tower won't turn on. There is a green light on the back near the power cord that's flashing green.

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Pull the power cord out and allow it to reset. If you still have issues you may need to replace your power supply.

Posted on Aug 05, 2010

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Pull the power cord out and allow it to reset. If you still have issues you may need to replace your power supply.

Posted on Aug 06, 2010

  • prerit  sharma
    prerit sharma Aug 06, 2010

    it will solve your probs

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thegoshem
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SOURCE: Green light flashing on back of unit near power cord also green light flashing on motherboard near power supply plug in.

I would suggest trying to replace the power supply. If that does not fix the issue, i would need to hear more about the computer.

Posted on May 06, 2009

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Related Questions:

1 Answer

My monitor no display and light is blinking


Hi,
if the monitor light is blinking this suggests that, there is no display signal coming from the tower. This could be because of the following .

1. Bad video card 2. Bad video software

To check,where the problem is , power of the system tower and remove the power cord from the back of the tower. Press and hold the power buttoon for 10 seconds and the reconnect the power cord and turn the tower on. Check if there is any display or the status of the light changes from amber to green for even a small instance.

If the light changes to green and back to amber the video port on the tower is bad

Alternatively you can connect the monitor to another desktop or laptop to check if the same is working correctly.

Thanks for using fixya
Proton

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reset the surge protector first!

then investigate the power supply

Mar 27, 2012 | Compaq Computers & Internet

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Computer was shut down and power turned off. When i restarted the system the printer and monitor came on but the tower is not getting any power. cords are all plugged in and checked outlet works. seems...


Hello,

If the outlet is good and the cord is good, you may have indeed blown the fuse in the power supply. That is the only fuse. The fuse in the power supply is usually "hard-wired". Not necessarily, but usually. You would need someone familiar with them to replace it if it is blown.

Some computers have a green LED on the back of the computer near the power cord. Do you have one? Is it on? You can also look to see if the small green LED is on on the motherboard.

If you get no indication of power, the power supply is probably gone. A new on is about $25 and pretty simple to replace.

Hope this helps.

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Sounds like a dumb question, but I was moving my comp to lean over and change a printer cord and the comp shut off. I have checked all the power cords etc, but when i press the on button the comp does not...


There is usually a reset and a ON button. the latter being larger was that one tried?
If you have a battery UPS you might have turned that off and it will only supply battery power might not be enough to turn unit back on.

Dec 22, 2010 | HP Compaq Presario SR1720NX (EL435AA) PC...

1 Answer

Screen will not come on hard drive light no light checked power supply is ok


Things to check:
  1. Power led on the front of the tower, it should be solid green when on. Flashing Amber is generally an indication of a bad power supply inside the tower
  2. Power LED Solid AMBER indicates system is not finishing the power on self test (POST) and you remove all connections from the tower except power and try turning on again. If no change, remove all PCI and PCI-E cards from system, try again, no change replace motherboard.
  3. On the back of the tower are 4 diagnostic LEDs near the ps2 ports marked ABCD, after the POST, during a normal boot the will flash in several sequences and with boot is finished all 4 should be green. If they stop an a different pattern, then that indicates a failure Yellow Yellow Green Green indicate bad RAM for example
  4. If the LEDs on front and back are Green then the system appears to be booting but the monitor display is not functional

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1 Answer

Wont post led 3 flashes


if its the red flashing light on the tower, its the hard drive activity light.

when the monitor goes on stand by, does the tower retain power? (green light on and flashing red light sometimes?) Does your keyboard's scroll lock/num lock/caps lock keys and keyboard lights work?

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Unplug the tower

Remove the ram and turn the tower on wait till it give you fast beeps. (telling you no RAM)

once that happens shut the system down by unplugging it again

Re-install your RAM and try to boot again

May 26, 2009 | Sony VAIO RB30C (VGCRB30) PC Desktop

1 Answer

Green light flashing on back of unit near power cord also green light flashing on motherboard near power supply plug in.


I would suggest trying to replace the power supply. If that does not fix the issue, i would need to hear more about the computer.

May 06, 2009 | Sony VAIO VGC-RB40 PC Desktop

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Computer wont turn back on after power outage


Try unplugging the cord from the back of the computer for about 5 minutes and then try it again

Apr 14, 2009 | Compaq Computers & Internet

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