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My external hard drive is not registering on my laptop! It used to have a constant green light when i turned on the power button but now when i turn it on there is a flashing light!

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Try to change the casing
check for ur usb driver

Posted on Nov 18, 2008

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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

2 Answers

Toshiba Equium


This could be a hard drive crash, however, I just repaired a machine that had a similar issue. A loose connection an the board was prompting the machine to blue screen, and then shutdown all together. I had to tear the machine completely down to find it.

Jul 02, 2008 | Toshiba Equium 7300S PC Desktop

1 Answer

Flashing green lightbulb


Do you hear the fans running? Do you hear the hard drive spinning? Did anything ever appear on the monitor?

Remove the Power Cord, Open the Case and remove one of thememory 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 onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.

Apr 09, 2012 | Acer Veriton PC Desktops

1 Answer

Fan just work for seconds


Replace the fan or your computer will run hot and keep turning off.

Or are you saying this is what happens when you power on the computer? if so: When you press the power button do you hear fansrunning, hard drive spinning, lights on the computer, hear any beeps or lightsconstantly blinking, hear the DvD/CD drive click and the light on the drawer ofthe DvD/CD turn on for a second or two? If so the laptop is trying toboot 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 thelaptop and why it is not booting. Most times it's a motherboard issuewhen you hear beeps or blinking lights continuous.

Mar 28, 2012 | PC Desktops

1 Answer

Have a HP m7470n. The green power light in the back is constantly on. The power button flashes blue and orange (~3 seconds each). The computer wont turn on. When I unplug the cord and plug it back in, the...


In my case it turned out to be a weak power supply. It would work sometimes and not others. If stone cold, it would not boot. If I unplugged 1 thing, like the hard drive or the CD Roms, it would boot. Tested the old power suppy and it seemed to pass. But once I connected a new power supply, the computer has worked fine ever since.

Jan 08, 2011 | HP Pavilion m7470n (ER883AA) PC Desktop

1 Answer

If I unplug the hard drive and plug back in the green light comes on in the back, when I push button to turn hard drive on the light goes out and the hard drive will not turn on.


reverse the plug when you install a hd and turn on the computer and the light stays in constant that's a sign if a reversed plug i have don't it myself hope this helps

Aug 30, 2010 | PC Desktops

1 Answer

ACER Aspire L100 Desktop is dead?


If the hard drive is OK then you can remove the hard drive from the desktop case, and insert the hard drive into a USB 3 1/2" hard drive adapter case, this should come with a power adapter. These are available at your friendly computer shop.
Boot up the laptop then plug this USB hard drive adapter into the laptop's USB port. The laptop will see this as an external USB hard drive. You can open the various folders and files on this external drive and copy the folders and files to the laptop.
You can delete the Windows folder and Program Folders on this external drive to free up disk space and use this as a back up drive etc.
If you are not sure how to remove the hard drive and install it into an USB hard disk case, then I suggest you get a computer savy friend to help you.

Dec 08, 2009 | Acer Aspire L100 PC Desktop

1 Answer

My Maxtor one touch external hard drive will not switch on


HI,
The maxtor one touch hardrives generally have a 3 year warranty on them. If you have the orginal invoice for the same, I would suggest you to call maxtor and they can help you out on the same. The support information is available on the site below
http://www.maxtor.com/en/main/support.html


Best of luck
Proton

Apr 22, 2009 | E-Machines eMachines Desktop PC

1 Answer

My computer does not boot


No bios no post and no power lights on disk drives means hardware problem.

Either call a technician or try the following if you feel you can do it yourself, beware , there is always risk of damaging your PC on DIY.

unplug the computer, open PC and remove all plugs and internal and external devices, leaving only a minimal set of devices.

Start the motherboard with only Power adapter , one RAM module, and video card and screen connected. Unplug all disks and external devices, remove all pci cards.

If it still does not start take it to a repair shop, you may need to replace power supply, motherboard or ram.

Sep 17, 2008 | PC Desktops

2 Answers

System won't boot


Better you try with a bootable CD, if that works then check for your Hard Disk it might got faulty or crashed.

Feb 04, 2008 | Dell Dimension 4600 PC Desktop

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