Question about Dell OptiPlex GX270 PC Desktop

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Dell optiplex gx520 front panel connector

How to hook up switch/led/reset

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SOURCE: connecting front panel leads of generic case to 4600 motherboard

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-MrSlickShoes

Posted on Mar 20, 2009

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SOURCE: when I switch on the computer there is nothing on the screen

Do you hear anything during startup, beeps, fans or drives spinning, lights on the front or back of computer flashing or lit up? Do you hear the Windows starting sound?
Let us know more then we can troubleshoot better. It is starting to sound like 1 of 3 things, Power supply, Video card or motherboard.
Situation #1: If you get a blank screen and no sounds or movement it either indicates that the power supply unit (PSU) has failed or something on the motherboard has failed, preventing normal startup.
Situation #2: If you get sounds and lights but nothing on the screen then it indicates a failed or loose video card.
Always try a different power outlet that you know is working. (Eliminate the easy stuff first!)
If it is out of warranty, Try opening up the case, with the power off, of course. If you have Sit #2 and have a video card that you can reseat try that.
Also take the time to inspect the capacitors on the motherboard (they look like tiny soda cans) and check for tops that are bulging, swelling or leaking anything. Capacitors should be perfectly flat on top. If you find these then your motherboard is bad (well technically the capacitors on your motherboard are bad). The caps will need replacing to fix (not a job for an amatuer). If it passes the visual inspection then it may just be your power supply is bad. Notice that a bad PSU does not mean you are getting no power, just not enough to start and run the computer.

Posted on Mar 25, 2009

benwabnick
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SOURCE: dell optiplex gx520 keyboard

If your dell machine is recognizing the keyboard properly and installing its own built in drivers properly then the USB ports are working and it a problem with your keyboard

Posted on Jun 17, 2009

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SOURCE: SWAP DELL DIMENSION 4550 MOTHERBRD IN AFTER MARKET CHASSIS

If you look closely at the motherboard the pinouts are there. I have always had to play with the reset and power pins and by this I mean that if they don't work right then turn them around. I have also had to put the cable marked reset on the pins marked power. The others are marked (hdd led). I have found this to be true with all dell machines.

Posted on Aug 25, 2009

dwane4444
  • 219 Answers

SOURCE: Dell Optiplex GX520 PC won't boot - power light at

OK the first step is to remove the side of the case and check that all the leads are firmly inplace. - If this does not fix it post a comment.

Posted on Nov 02, 2009

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Sounds like you may have multiple problems. Suggest trying to eliminate possible causes by removing components. Remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged. Remove the components one at a time and see if the LED's change.

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I have a dell optiplex GX520 the computer comes on and shuts off in about ten seconds. Changed the power supply and checked all connections. Any Idea?


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Sep 21, 2010 | Dell OptiPlex GX520 PC Desktop

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Hi guys, just been given a dell optiplex gx520 to tinker with. when i plug it in, the power switch on the front flashes orange and the unit doesn't switch on. any ideas??


Did you open the case up and do a general inspection. Things to look for:

Is the CPU installed correctly and tight?
Is the RAM installed correctly? Are they the right type?
Is there another PCI cards? If so, make sure they are inserted tightly.
Are the power cables for the mother board attached correctly.
Look at all the unused power connectors for drives. Make sure the metal part are not touching anything conductive.

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Hi,
This should be the front panel header configuration of that particular motherboard.
41e73e6.jpg

6-8 (red) is your power sw
2-4 (green) is your power LED
1-3 (yellow) is your HDD LED
5-7 (purple) is your reset sw
black is not connected

The motherboard should go into a custom case no problem.

Regards.

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System not start


Check if the power card is working and your CPU is in correct state..you can call the service people for the help

Jul 07, 2009 | Dell OptiPlex GX520 PC Desktop

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TRYING TO HOOK UP MU POWER BUTTON NEED TO KNOW


Hi there
The front panel connectors are mainly,
  • harddisk activity connector
  • power switch connector
  • reset switch connector
  • power LED connector
  • speakers connector
  • USB connector
Harddisk activity connector
This normally comes red in colour and is labeled as HDD-LED
Power switch connector
This comes green in colour and is labeled as POWER-SW
Reset switch connector
This usually comes grey in colour and is labeled as RST-SW
Power LED connector
This is usually green in colour and is labled as PWR-LED
Speakers connector
This speaker will give different beep sounds during boot to tell the user if there is any errors. It occupies 4 pins, however only 2 is important for the function. Be sure to connect the red coloured cable to the positive polarity and the black to the negative.
front_panel_connectors.jpg Front panel connectors pins on the motherboard
front_panel.jpg Front panel connectors from the casing

Good luck and thanks for using FixYa!!

May 13, 2009 | eMachines T6420 PC Desktop

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