Question about Dell Optiplex GX280 (99301) Motherboard

6 Answers

Resetting admin password on setup.

One of our 280s we got in is setup-locked by admin password. We don't know password, nor can we get ahold to supplier to see why it was locked. Dell Optiplex GX280 tower. BIOS version A03. Will reloading/updating BIOS reset the password? I can put in another HDD with windows loaded and try that. Resetting CMOS didn't fix it. Thanks.
-Mike.

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  • heero6x6x6 Jan 18, 2009

    The admin password locked the BIOS, and the settings are as follows:

    Boot priority is: 1) HDD 2) N/A 3) N/A

    the SATA 0 is on, SATA 1 is off, both PATAs are off....seems someone did this for meanness, they turned off the floppy, network, optical, everything except HDD, and they wiped the HDD.



    I did the battery/power switch deal and no-go, I will try the jumper part next. How do I do the jumpers? just pull and put back in? or do i hold power button while doing that?

    -Mike.

  • wyzard Feb 20, 2009

    I have the same problem i am using a dell optiflex 280... the thing the only jumpers i can find on the board are two prong not three... the board is a intel fw8201fb,fs171c69, SL7AG. the rom is a SMsC PC47M584-NC, BO49-A02014,8D119426B

  • charafox Jun 08, 2013

    i have problem with my pc dell gx280 i need an admin code plz i neeeeeeeeeeeeeeeeeeeeed it help me

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In the model 280 Optiplex, remove the jumper, they have two pins only, turn on the computer, wait for 1 minute. The jumper is located close to the power plug, in the right side, you read PWD, theres is it, i did it and working fine...

Posted on Mar 03, 2009

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First, all the info you need is available from Dell at their website. I had the same problem and simply looked up the docs on the dell site. They have diagrams of the mommy board and instructions for about all you need. In this case, password reset: you remove the jumper (power down first) and then power up.

The jumper's location varies depending on the type of case: the gx280 mini-tower that I have has the jumper in the corner next to a rectangular connector; the wiring or which obscures the jumper, but it is there and disconnecting it (and power up) will fix the problem: it did for me.

Mike The K

Posted on Feb 20, 2009

  • moise_kossi Mar 21, 2011

    Just try right now and it is working Thanks for such a great help.

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U must turn off ur PC and take out the jumper (there is only one jumper near to ports) and turn on the PC after this the password will remove

Posted on Mar 15, 2009

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Remove the CMOS battery and hold down the power button for thirty seconds. This will reset the CMOS/BIOS. If it doesn't the is a jumper on the motherboard that will do the same thing. Replace the battery and start the machine after that
http://www.ksu.edu.sa/sites/Colleges/CCES/default.aspx

Posted on Apr 15, 2009

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Hi, had same problem, to remove password and get into bios and boot selecter, just remove the jumper near the power supple, only one jumper so cant get confused, and fairly big jumper to!

Posted on Mar 31, 2009

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Remove the CMOS battery and hold down the power button for thirty seconds. This will reset the CMOS/BIOS. If it doesn't the is a jumper on the motherboard that will do the same thing. Replace the battery and start the machine after that.

Posted on Jan 18, 2009

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  • David
    David Jan 18, 2009

    The admin password is in the Operating System?

  • David
    David Jan 19, 2009

    The jumper is next to the CMOS battery on most boards. The Jumper is three pins with a 'plug' that covers two of them. Move the 'plug' to the pin that is not covered and the center pin. Do this with the computer unplugged. Leave it there for one minute then put it back on the original two pins. Then plug it back in and the BOIS should be reset.



    If you are not sure which jumper is the CMOS jumper, give me the model number of the motherboard and I will look of the schematics.

  • keanna2005 May 02, 2011

    I tried this and the battery fix, neither of which worked. please help me

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