Question about Dell Optiplex GX280 (99301) Motherboard

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No video, beep code 1-3-2, light code G-Y-G-Y, mobo replaced.

Hey guys, I had had a problem with the GX280 Dell Optiplex, tower model. The fan was running full tilt and the video wasn't showing, but it did have beep codes and so forth. I was told the resistors on motherboard had gone out causing capacitors to discharge their full power into the fan. I replaced the motherboard, and put a 1GB stick of RAM in the DIMM1 slot. The fan now runs okay, but still no video. I need to get past this series of happenings so I can enter BIOS and turn off the chassis-intrusion, which has been a headache on my other 280s. The beep code sounds like 1-3-2 or maybe 1-3-1-1, can't exactly tell....the light error codes out at G-Y-G-Y(A-B-C-D). Thanks for looking into this.

-Mike.

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  • heero6x6x6 Jan 12, 2009

    Found the problem, I checked and the RAM card I had put in it was a PC3200 stick. It has the exact same plug-in, i always thought that everytime they changed RAM designs, they changed the notch by atleast a tooth or more to act as a physical blocker from accidentally using wrong RAM....this seems to be an exception. A co-worker spotted it about 30min after posting my problem.



    Another question i have is this; i have seen people say the fans run too fast when the capacitors are blown, but support told me it was actually the resistors that hold the capacitors at bay, so they don't discharge except when needed, and that what happens is the resistors get weak and start letting the capacitors discharge more than they are suppose to....anyone else ever been told that?

    -Mike.

  • 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?

  • habte Mar 08, 2013

    my pc is dell optiplex 780 1, 2 is light bliking but the pc is not show anything that means not starting what is the case please help me soon.

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Posted on Jan 12, 2009

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Dell GX280 orange light on MOBO


Dell Support > Optiplex GX280 Desktop PC > User Manual,

http://support.dell.com/support/edocs/systems/opgx280/en/ug/tindex.htm


I chose the Mini-Tower model because the following information applies to all models;
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http://support.dell.com/support/edocs/systems/opgx280/en/ug/tools02.htm#wp1114432

Now scroll down. What do the Diagnostic Lights indicate?
Post back in a Comment.

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This is a motherboard problem, if the video Graphics Card is a plug in remove it and test as you go, unplug hard drive, and any other hardware, if at the end of it no change, motherboard will more than likely need to be replaced.

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Beeps 6x


POST ("power on self test") codes for the Dell GX280 are in a format of n-n-n as in 3-1-2. This would sound like 3 beeps, followed by 1 beep and finally 2 beeps. If you're not paying attention, that 3-1-2 beep code could sound like 6 simple beeps.

Dell has a page for the GX280 dedicated to Troubleshooting Tools and Utilities. There's a great deal of information on it - but the POST codes you're looking for are explained in detail about mid-way down under "Beep Codes" This document and associated links should go a long way to help you properly diagnose the problem with your GX280.

Please take a minute to rate this reply if it was helpful to you. Good luck!

Aug 02, 2010 | Dell Optiplex GX280 (99301) Motherboard

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I have dell optiplex GX280 System in unbranded casing, Kindly suggestion about Processor Fan Voice, he is so shouting


The fan(which runs on a bearing) has aged, it must be replaced. Luckily this is an easy and cheap fix. Pick one
http://bit.ly/9qzXBz

May 30, 2010 | Dell Optiplex GX280 (99301) Motherboard

1 Answer

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The exact meaning of the beeps for Dell depends on their... rhythm.

http://www.nullamatix.com/dell-diagnostic-beep-code-troublshooting-chart/

Six beeps might indicate a simple CMOS failure caused by a bad battery, which is easy to replace.

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4 Answers

Black screen.High noise from cpu.fan


Addboat,
I have wasted enough time in Dell community for exactly the same problem. Even a link mentioned by Move_n_man above, on 8 Oct. 09 refers to my posting in Dell community. Its nothing but a crashed bios and unfortunately theres none who could tell how to flush the bios and reload fresh bios in the bios chip when computer does not boot.
Dell is in no mood to help! So do the so called experts of the Dell community.
Sqn. Ldr. Raman K Jhanjee (Retd)

Sep 23, 2009 | Dell Optiplex GX280 (99301) Motherboard

5 Answers

6 long beeps Dell GX280 -- unsolved Please help auntie! I have four PCs model RB-DT-OL-Dell GX280 ? they are fairly thin and light, you can open them like a suitcase. They worked just fine, then all of a...


I had 1 long beep, 3 faster beeps, then 2 beeps *I think*, and also my fan was going crazy fast - like someone else said "a vacuum cleaner"...
Well, I reseated the memory and problem was gone - it did seem like the memory was kind of "loose" - perhaps from shipping (bought this used).
The link to Dell's website was good for the beeps AND the "ABCD" codes reading on the back. Thanks very much! God Bless.

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