Question about Dell Optiplex GX280 (99301) Motherboard

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DELL GX 280 CPU PROBLEMS

I HAVE A GX 280 AND WHEN YOU POWER IT ON IT HAS NO VIDEO AND THE CPU FAN RUNS WIDE OPEN AND IS VERY LOUD. IS IT A PROCESSOR PROBLEM?

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  • sman260 Oct 29, 2008

    I'm having this same issue with one of our GX280's. I have attempted swapping all the drives / fans / power supply to another computer and was unable to duplicate the issue. Due to fear of damaging anything else I havn't attempted the CPU yet. Has anyone come up w/ a fix for this issue ?

  • pan_waldek Nov 08, 2008

    Dell GX 280 small desktop factor. The same problem two days ago. First the CPU fan gets more and more actvie. Processor bussy 100% even when only mouse cursor moved. Than it freezes and does not boot any more. On restart the CPU fan runs crazy and nothing else happens..

  • Anonymous Dec 03, 2008

    my pc dell gx 280 have the same problem, please give a solution.

  • Anonymous Dec 24, 2008

    I've found the reason for this issue. I'm having the same problem and I think it lies with the 2nd memory stick slot. The memory stick does not seat securely in this slot, causing the computer to freeze. When I reboot, the power light is amber and the fan runs like crazy. I noticed that it would work fine when the desktop case was open, but as soon as I closed it, it wouldn't power up. I began to check my connectors and wires to see if there was a short anywhere. As soon as I wiggled the memory stick, it froze and the video became distorted. This is my 2nd motherboard from Dell where this has happened. I believe the 2nd memory slot is faulty.

  • naymx5 Jan 21, 2009

    i have the same problem but may have caused it my self. ive just acquired a gx280 desktop with no ram, i put 2 1gig sticks in and nothing would come up on the screen but there were beeps a couple of times i tried it. after closer inspection of the ram it turns out that its pc2-3200R. would this have now damaged the motherboard?


  • pretzworld Jan 29, 2009

    yes i've the same problem, my cpu fan sounds like a steam engine.. i d'nt know the reason..?? anybody help me ?

  • Anonymous Jan 30, 2009

    As mentioned my unit would turn on but no video, no beeps, no ABCD ligths on and the processor cooling fan would rev up to max and just sit there. Did get a replacement Intel motherboard to replace the Foxcom motherboard that was in the unit and it did fix the problem. Did not harm any other devices.

  • Anonymous Feb 07, 2009

    bought new 3.0 cpu, new ddr2 memory, all caps are good, turn on, cpu fan runs full speed, nothing on monitor, tried different vidio card (PCI) known to be good. Same results. Dell tects should know anwer-solution.

  • beverling Feb 10, 2009

    same thing for the 280. fan was running real loud and machine would freeze. i replaced the fan and now poweer lite is solid amber and nothing happens. any suggestions. when i swaped a fan from a working 280 and then put it back in the original machine that had been working, that one stopped working. same thing...amber powerlite and willnot boot.

  • TTCASIKES Feb 18, 2009

    I FOUND OUT I HAVE BAD CAPS,THANKS FOR YOUR HELP...

  • Anonymous Mar 05, 2009

    you cant install the new bios when the pc wont power on.

  • Anonymous Mar 13, 2009

    how do you download the A07 BIOS to a machine that will not boot? Just the aircraft sound. Monitor knows it is hooked to a machine, but couldn't use PC for more than a leaf blower at this point.

  • Anonymous Apr 03, 2009

    you cant install new biso on pc that wont power on

  • Anonymous Apr 04, 2009

    I HAVE A GX 280 AND WHEN YOU POWER IT ON IT HAS NO VIDEO AND THE CPU FAN RUNS WIDE OPEN AND IS VERY LOUD. IS IT A PROCESSOR PROBLEM?

  • Anonymous Apr 15, 2009

    same problem for us for 4 PC's!! thanks dell

  • Ken D. Mann Dec 30, 2012

    Had the same issue with a Dell Dimension C521. I removed the single stick of ram and put it in a different slot and it solved the problem. This may or may not work for you but it's easy to try.

  • Michael Fisherrman NY Apr 11, 2013

    i had this problem one time before and it just happened to me again. Found the computer rebooting. pressed F1 and fan went wild high RPM. I replaced the power supply and the computer went back to working normally. I hate to do this again and i will have to replace the power supply "AGAIN" Hmmmm Home this works for you..

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100% motherboard issue guys. The dude above that said flash the new bios should realize that when you CANNOT post a machine you CANNOT flash the bios unless the bios chip is removable and you have another machine to flash it with. The only fix for this is a new motherboard.

Posted on Apr 08, 2009

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This problem is normally due to some bad capacitors in your motherboard. Dell is aware of it and as a computer tech for 18 years, it's one of my biggest problem were I work.

Please check the capacitors that are closest to the fan. If you see capacitor are blow-up or bad that is your problem, and they most be replaced. Here is website that would help you in how to change it http://www.thecapking.com/. Good luck

Posted on Dec 13, 2008

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After flashing a GX280 from A04 to A08, the system would not reboot iknto XP. Had to unplug it to shut down. When powered back on, it then sounded buzzer like beeps and the green light in front flashed. The fan went into afterburner mode. Unplugged the machine and took out the CMOS battery and powered it on without a battery, and it tried to post up. But unable to enter setup via F2. I then shut it down and replaced the battery. Then let it do its thing. Finally able to enter Setup. I could see it was now A04 again. Tried to flash with A07 successfully. Reset date and time and check other settings. It appears to be okay now! No removable CMOS chip that I could see, no fried capacitors apparent, otherwise it would not boot!

Posted on Jun 11, 2010

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I replaced the the HSF and the CPU. After doing this, all was well.

Posted on Nov 20, 2008

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Guys guys guys wat r u all talking about i have four of these and the problem cause when u do hardware tempering wid ur pc He's right The Capicator's but they r not only cause it can be ur processor mother board power supply always when u r upto upgrade ur dell gx280 visit dells support site they have the manual to how to ground urself pc and then u go on due to this cause dell selected a new front led opition by which the pc tells u which thing has problem if u find any of ur capicators nt in path irregular hit it slightly with the back grip of screwdrive on capicators top the it come in position

Posted on Feb 06, 2009

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Since no CAPs were bad on mine, I replaced my power supply, running fine again

Posted on Jan 21, 2013

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Download the A07 BIOS, and everything will be fine! A08 is causing CPU FAN issues.

Posted on Dec 21, 2008

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Dell Optiplex S280. Alert! Chipset heat sink not detected.


There is no S280 in the Optipex model line, just GX 280 and SX 280.
The problem you are describing is common to the GX 280 model.
Here is a link to the manual:
ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-gx280_user%27s%20guide_en-us.pdf
Select "Small Form-Factor Computer" and then select "About Your Computer". Scroll down to "System Board Components".
To the right of the processor is a smaller heat-sink attached to the motherboard via a wire similar to the size of a paper clip bent open. That wire is soldered to the motherboard which may have loosened it's connection and the circuit is open. This heat-sink on the chipset of the motherboard. The wire needs to be re-soldered to the motherboard.

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Please i need your help dell optiplex gx 280 there is a very loud noise when i press the power button and the power button colour is red instead of green nothing appears on the screen


check the boards compasstors if they have a round top on them or not if they do you need new board check also the power supply as well jim look at fan on cpu if it turns or not

Apr 04, 2011 | Dell Optiplex GX280 (99301) Motherboard

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I have DELL Optiplex GX 280 .. when i plug the computer on power .. that turn on automatically then have very loud fan noise , no blinking lights and the processor work good on another motherboard and ram...


Hi, Thanks for using fixya.

I have the same computer with the same problem. I changed the power supply that cured it for me, I hope it does the same for you.

Terry

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A message says "previous fan


my dell gx 280 fan failure how i solve it'

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PC wont boot cpu fan runs extreemly loud and fast.


You may have a failed motherboard or bad/weak poswer supply unit (PSU) then. Failure of motherboards is usually due to breaking capacitors. A few years ago a capacitor company stole the "recipe" for making capacitors from another company and tried to make their own, unfortunately they did not get the ingredients right and the capacitors started breaking after 2-3 years of use. They sold these capacitors at very cheap prices and a lot of computer companies and power supply makers bought them. The DELL GX270 and GX 280 were the main DELL models affected by this situation. This is easy to diagnose. Look for capacitors (caps) (they look like little tiny soda cans) on your motherboard (mobo). They should be perfectly flat on top and not bulged or swelling or leaking anything. Make sure you look under the fan shroud. Most of the bad ones had either a plus + or X on the top - depending on your interpretation. There are a few companies that will repair broken capacitor issues. If it has recently gone out of warranty you could try to contact DELL to see if they will ship you another one. I was able to get them to fix a couple of mobos out of warranty, but that was two years ago. To eliminate some other stuff you could remove the memory and disconnect all the power plugs from the drives and then try to start it up. If it does not change the behavior at all (no beeps, no change in flashing lights) then you probably have motherboard or power supply issues. Make sure when disconnecting the memory chips (sticks) that you touch the metal on the inside of the case first to discharge static electricity. If it does change the behavior add 1 component or item back at a time to see what you can find out. Post back with what you find. And remember a bad PSU does not mean no power, just not enough to run the computer. If you change out the PSU, the one that you replace has to have the same or greater output watts?

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1 Answer

I need to know the pins layout on the CPU fan connector. It is a DELL desktop serial number 7BP5H1J model DHS computor. ( Intel P4 processor ) Thanks for helping, Marc.


Hi
The GX 280, that you have come in various chassis design. You can select from the follwing link wich chassis you have

http://support.dell.com/support/edocs/systems/opgx280/en/ug/index.htm
The corresponding link for the pinout can be found at
http://support.dell.com/support/edocs/systems/opgx280/en/ug/replbrd0.htm


Thanks
Proton


Kindly rate the solution, if it helped you to solve the problem

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Dell gx 280


check your motherboard manual for the compatibility of processors

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