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Dell Optiplex GX280

Posted on 2011-03-04
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Last Modified: 2013-11-09
I have 2 Dell Optiplex GX 280, both having the identical problems. In that they don't boot, powers on but doesn't have any display. The cpu fan starts spinning low then gradually  increases it velocity I have to turn off , afraid  of damaging  fan.What can be causing this as memory  tested good in other  systems.
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Question by:TechGSC
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by:Lordy123
ID: 35037179
That series(gx240-gx280) was notorious for bad capacitors on the motherboards and bad power supplies. I would suspect those first, there will be a line of LED lights on the back near the I/O ports, what are they displaying? Is the power LED green or orange? Is the PC emitting a beep code?


Let me know and we can narrow it down.

Regards,

Lordy123
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by:edbedb
ID: 35037198
The first thing to check is the power supply. Test it or try replacing it.
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by:sjklein42
ID: 35037389
I agree with Lordy123.  It sounds like Capacitor Plague:

http://en.wikipedia.org/wiki/Capacitor_plague
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by:TechGSC
ID: 35039258
Tried other PSU  & capacitors look good , no swelling  of indication thereof or even sign of a burnt cap
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by:Lordy123
ID: 35039376
Whats the status of the LEDs by the I/O ports? What about the front LED?
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by:nobus
ID: 35042092
try resetting the bios
how : remove AC cord -  then remove bios battery for a minitue.
reconnect all and test
you can use this guide also  : http://www.experts-exchange.com/articles/Hardware/Components/Motherboards/Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post.htm
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by:Dr. Klahn
ID: 35042106
I have seen this in a couple of GX280s and, judging from postings here over the past year or so, this model was apparently notorious for this specific problem.  Troubleshooting with a POST 4 card produced both no, and inconsistent, results.  I was never able to find a satisfactory solution, and ended up recommending that the customer replace them with a more reliable platform.
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nobus earned 500 total points
ID: 35043329
also note that bad caps are not blown up, or leaking in all cases..
you can also try with a minimum setup : http://www.experts-exchange.com/articles/Hardware/Components/Motherboards/Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post.htm
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