Question about Dell Optiplex 755 Minitower Desktop Computer

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I have Dell Optiplex 755 dekstop i have power on problem. Orange colour light is blinking

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Hi,
The problem of blinking amaber light is usually caused due to a bad power supply on the computer. Open the system tower and reseat the biggest bunch pf cable connected to the motherboard. its titled P1 and it the biggest white connector. If the same doesnot resolve the problem you would have to replace the power supply on the motherboard.

Thanks for using Fixya
Proton

Posted on Aug 30, 2010

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Orange light


IF THAT'S ALL,NO FANS ELECTRIC LIGHT ON THE MOTHERBOARD.YOUR PSU ARE BROOKEN.

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Optiplex 755 blinking amber light, simple solution, I'm no IT professional.


If the power light is blinking amber, the computer is receiving electrical power, but an internal power problem might exist.A power supply or system board failure has occurred. Try to isolate the problem by removing or disconnecting all cards, i.e. video, sound cards and disconnecting CD/DVD and hard drives.

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Optiplex 755 flashing orange power button light only


Sounds demanding. I would like this solution sounds better. Capish?

http://support.dell.com/support/edocs/systems/op755/en/UG/HTML/trouble.htm#wp1303994

Bad Power Supply -> Replace

(Also FOLLOW Anti-Static Precautions, and to include clean out the inside of the computer)

Regards,
joecoolvette

Aug 27, 2012 | Dell Optiplex 755 Minitower Desktop...

1 Answer

Optiplex 755 showing orange colour light on power button.. how can i fix this problem


A Blinking Amber or Yellow power button means that the power supply is receiving power from the source but is unable to properly distribute it to the components. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, 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.

Jun 24, 2012 | Dell Optiplex 755 Minitower Desktop...

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I got dell optiplex 755 desktop computer in the power supply unit at the back there is a small button and a green light what are these for??


It help diagnose problems with your computer

A solid green light means the computer is operating normally.

A solid yellow:- the power is operating fine but your computer not processing data. This could mean there is a problem with the CPU or another component on the motherboard.

A blinking yellow light: power supply is receiving power from the wall, but not functioning properly. This generally means the power supply itself is bad and should be tested or replaced.

A blinking green light means the computer is in standby mode

Jan 29, 2012 | Dell Optiplex 755 Desktop Desktop Computer...

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Please my dell optiplex 755 does not power but the on-board light is on. it only has a yellow light always blinking on the power button. how do i solve this problem?


Replace the power supply.

Generally this is a dell diagnostic light feature tellign you the power supply is failing. Have the unit tested and get a replacement.

Jan 24, 2011 | Dell Optiplex 755 Minitower Desktop...

1 Answer

I have a dell optiplex 755 there is a blinking orange or amber light when i press the power button can you help me please...


kcvictory

If you are getting a blinking amber light this is normally related to a power problem. So the first thing I would try resetting the flee power. You do this by unplugging the AC power and holding the power button in for 30 to 45 seconds. After you do this plug back in the AC power to see if the system will boot. If it will not the next thing I would look for is the diag lights to see if any are lite up. They are normally near the front USB unless you have a small form factor case then they are on the back. Then will point to a hard ware problem if any. If they are not lite up then most likely the problem is with the powersupply.

Note if you are still in warranty I would pass this info over to Dell and they should be able to get your system fixed.

Let me know if you have any more problems or questions.

Issken
http://www.fixya.com/users/issken

Aug 24, 2010 | Dell Optiplex 755 Desktop Desktop Computer...

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My computer is blinking orange light


In addition to the power supply, motherboard issues can cause the blinking power light and no boot problems. The Optiplex 270, 520, 620, 745 and 755 units are all known to have issues with capacitors on the motherboard. Here is a link to an article about this issue and what to do about it:

http://www.ccl-la.com/blog/index.php/dell-optiplex-745-repair/

I hope this helps, if sol please rate my solution.

BuddyMc

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Optiplex 755 flashing orange power button light only


Sounds like you only have power going to your motherboard.

The power supply might be bad on it, that or maybe the power cord is going bad and is only letting a small amount go through. I don't see why there should be a problem if you have even a little bit of power going though.

Jul 11, 2009 | Dell Optiplex 755 Minitower Desktop...

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