Orange power light dell optiplex 740 - Dell OptiPlex 740 AMD ATHLON X2 3600+ 80GB/512MB PC Desktop

SOURCE: Dell optiplex won't Boot-up.. Orange light on motherboard

its going to rather your power supply or your motherboard has died, id try a different power supply first

SOURCE: Orange light on Dell GX270 power button

I agree, the Optiplex GX270 is infamous for MoBos going bad. The capacitors have a manufacturing flaw, and up until February of 2008, Dell was replacing those boards for customers for free if it was found that the capacitors were the culprit. I just found a board yesterday with this problem. A sign that the capacitors are bad is either a buldge or they will be leaking an orange-rusted looking substance (primarily capacitors near the CPU). Symptoms of this problem include the PC rebooting itself randomly, and/or getting a BIOS error saying there was a thermal event.

SOURCE: Dell (ie optiplex 330) would not boot with the orange light on

Do you have a lot of accessories plugged in? They may have overloaded the power supply and if this is the case you will need to buy new power supplies. If this is not the problem, check to make sure that the computers have plenty of ventilation in the back. If they don't, they may have overheated and melted quite a few different components.

SOURCE: my dell optiplex 330 can not switch on, whan I put

If you are getting an amber light flashing, your power supply is faulty.

If it is a solid amber light, you motherboard is faulty or one of the componants are faulty.

I would suggest giving Dell a call. They would beable to pin point the problem and give you a quote. Some of their componants are non standard and can only be purchased from them.

You could try reseating all your componants on the last resort but it is unlikly to help.

Achalesh Prem P

• 135 Answers
• Posted on May 31, 2010

SOURCE: Dell optiplex 330 flashing orange on the power botton

Try to clean the RAM and place it again in the motherboard.