On Dimension desktop with ABCD diagnostic lights (Dim 4700), the lights show G/Y/Y/G green/yellow/yellow/green. The Dell Service Manual and the Owner's Manual neither show this G/Y/Y/G among the lights shown/defined in the manuals.
One problem is that the POST procedure doesn't complete and it is extremely difficult getting into the F12 Boot Menu for troubleshooting or making changes there. Pressing F2 indicates "Entering Setup" but it doesn't enter Setup, probably because it doesn't finish the POST. Regarding the part on the monitor showing the POST procedure progress, it gets almost to the end and stops there. Whatever that last POST step is, that is probably where the main problem is which we cannot find. Does anyone know the final POST steps and/or what the yellow lights for the B and C indicate.
One problem is that the POST procedure doesn't complete and it is extremely difficult getting into the F12 Boot Menu for troubleshooting or making changes there. Pressing F2 indicates "Entering Setup" but it doesn't enter Setup, probably because it doesn't finish the POST. Regarding the part on the monitor showing the POST procedure progress, it gets almost to the end and stops there. Whatever that last POST step is, that is probably where the main problem is which we cannot find. Does anyone know the final POST steps and/or what the yellow lights for the B and C indicate.
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