We have a number of GX280s and on boot up we get an error about the PCI bridge.  When I called Dell they had me go into the BIOS, under maintenance there is a reset to factory defaults select that and save the BIOS and reboot.  Which clears up the problem for me most of the time otherwise it is a bad motherboard.  Since your post did not mention whether the problem was in BIOS or in the operating system, or which operating system you were using I thought I would mention it.  Be sure you have the current BIOS.

Sounds like you got it.  Where is the error on POST or when windows loads?

Thank you for you help.

I am currently running

XP Pro.
P4, 2.8 GHZ, 1GB of RAM

I went into the BIOS, i found an unknown IEEE 1394 BUS. I will have to figure out the Model # for the IEEE i add on.

I found it in the BIOS. I can't reset to the factory setting. That's ok, i will have to figure out the IEEE model no. Should not take me too long to do that. Thanks again for your help.

FYI that does not work on the GX280s.  Worked on the GX150s, but not on the 280s, may work on the 260s.

Optiplex Bios Recovery


While in BIOS ------- Press CAPS, NUM, SCROLL LOCK (all 3 lights has to be on)
Now Press
ALT E ----- clear BIOS
ALT F ----- load defaults
ALT B ----- Save BIOS

Then what happens?