Question about Dell OptiPlex GX280 PC Desktop
My Dell Optiplex gx280 will start up fine and run for about 30 mins to 1 hour at times. It then completely just shuts off and im left with a blinking orang power light. I then have to hold in the power button to shut it off completely. i can start it right back up but then it will only run for a few minutes and the do the same. I need to let it sit off for awhile then i can run it for another 30 mins
It happens because the power supply is overheats and computer goes to standby. The power supply is 160w or lower. Specially it will happen if you put more devices in such as video card or sound card. So the only solution you have is to place a small 1or2 fans toward the power supply to make it cooler. And 1 more thing the power for the fans should come from other sources.
Posted on Dec 29, 2008
Check the capacitors on the motherboard, they tend to bulge on some of the GX280 motherboards!
Posted on Feb 03, 2009
At the business where I'm IT director we have over 50 dell pc's and I've had this issue probably a dozen times. The problem is that Dell used cheap fans in their power supplies. When the computer is cold it boots fine but as it heats up eventually the temp sensors shut the system off. Once you've let it cool again it will boot up and run until it heats up again and you are back where you started. I've written how to repair this in detail on my website: John Fixes Stuff How to Replace the Power Supply Fan in Dell Optiplex GX520
Posted on Feb 19, 2015
I have dell Gx-280, problem is when i stat its work good no sound after almost 15 minutes start to give high sound. i am in too tention, pls tell me if have any solution.
Posted on Mar 19, 2013
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Posted on Aug 22, 2009
I've heard that unplugging USB devices and booting up may solve the problem.
Another solution is checking the pins on the USB connections on the computer. Sometimes a bent pin will give you this error.
Lastly you can try changing the CMOS battery. This is the little battery on the Motherboard that looks like a watch battery.
Posted on Jan 06, 2009
I have a similar issue, however i wouldnt reccommned removeing any cables near the Cpu, quite often with pentiums this is for voltage regulation, in other words you run the serious risk of fragging your cpu or shortening its life.
Posted on Nov 19, 2008
I have had this happen to several systems and Dell usually sends me a replacement power supply - the power down to a flashing amber power light is regularly related to a PS fail. It can occasionally be a motherboard, but usually is not.
I would look at your power supply fan - is it running? When the power downs get closer and closer throughout the day, it shows signs of overheating (even though it does not show thermal events in the BIOS or logs).
Posted on Oct 06, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
For the Optiplex 320, a flashing amber light with no sound indication can mean 3 things.
1) Your power supply has failed
2) Your motherboard failed, most likely from a bad capacitor.
3) The front panel board (where the power button is located) is faulty or not connected properly.
I've worked with 10's of 1000's of Dell Optiplex's over the past 8 years and the flashing amber light is well known as a tell-tail sign of one of those three failure. Always start your trouble shoot with a PSU tester, then inspect the motherboard for domed or split/leaking capacitors...then on to the front panel which would require another panel and ribbon from the same model.
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