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Dell optiplex gx280 uncontrollable system fan speed

On booting the fan runs wild making a lot of noise and then the machine suddenly powers off.

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Dell optiplex GX280 PC when power on system no noise with fan after one hour making loud noise . I changed the CPU fan , also same noise, and applied heat sink paste to CPU and heat sink same noise....


There probably is another fan, located inside the power-supply, that is making all the noise.

Borrow a stethoscope from a nurse or doctor, and listen to the noise, to pinpoint "where" on the computer that is the origin of the noise.

Jul 16, 2011 | Dell OptiPlex GX280 PC Desktop

1 Answer

I have a dell gx280 model it does not boot and when switch on the fan makes a lot of noise.what can be the cause?


Sounds like a classic case of overheating. Check the thermal compound under the heatsinks and replace it with Arctic silver 5

Apr 01, 2011 | Dell OptiPlex GX280 PC Desktop

3 Answers

No Display in dell optiplex gx280 & Fan speed is veyy high


GM from pakistan fsd problem in motherboard chepset......you should repare u r gx 280 or heat the chepset with heat gun ........ 

Aug 16, 2009 | Dell OptiPlex GX280 PC Desktop

1 Answer

Optiplex gx280 won't boot and cpu fan goes faster


Sounds like a bad motherboard, I try resetting the bios , removing everything but the video , could be a bad power supply too (if you have one jump the wires in there as a test). you can buy those dell MBs cheap on fleabay.
Eric

Jul 30, 2009 | Dell Computers & Internet

2 Answers

Dell Optiplex GX280 - On power ON , no Fan movement no display


Confirm no leaking or bulging capacitors on your mothboard.
refer to here
http://en.wikipedia.org/wiki/Capacitor_plague

As this was a common problem with the GX280.
If found, you will need to replace the capacitors.

The other check is to make sure the heatsink is fitted correctly, perhaps reaply the thermal paste if you have any. I know that high temps would switch the GX280 off.

Jul 15, 2009 | Dell Optiplex GX280 (99301) Motherboard

1 Answer

Dell optiplex gx280 makes loud fan sound at startup and enters windows screen, but will not finish booting and freezes up.


You may have a problem with your power supply(the loud fan noise) and eventually it may get too hot and will cause problems like not fully booting.

Jun 12, 2009 | Dell OptiPlex GX280 PC Desktop

3 Answers

Dell GX280


Same problem... orange power light, fan starts slow and builds up to very high speed.
I removed my video card and SIMMs --> it beeped on boot and the fan did not speed up.
Put one SIMM back in --> booted fine, pressed F2 to view BIOS. Memory reported fine.
Put all SIMMs back in --> all fine now.

Dec 01, 2008 | Dell OptiPlex GX280 PC Desktop

4 Answers

Dell Optiplex GX280 boot problem


I just repaired two Gateway systems with similar behavior (turn on power, fan runs at full speed, no boot), and both needed replacement system boards. (These were a different model, but the symptoms are typical of a dead system board.) I got the boards from a company called Blue Raven Technology (www.blueraven.com).

Before deciding the main board is bad, try another power supply to make sure that's not the problem. Also you might try clearing the CMOS memory on the system board (either by moving a jumper usually found near the backup battery, or by removing the battery itself). Sometimes corrupted CMOS data will keep the system from booting.


Nov 16, 2008 | Dell OptiPlex GX280 PC Desktop

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