I have an Optiplex 740 that suddenly quit working. Initially it was showing codes 3+4 indicating a memory error. After trying all the normal stuff I bought new memory... now I get just get a 4 in the diagnostic lights, which according to the manual is a bios issue and they recommend running the bios utility. Problem is I can't boot to run anything. Tried powering off, unplugging, removing battery, etc, to no avail. Any thoughts or suggestions?
Thanks in advance,
Did you try resetting the CMOS via the jumper on the motherboard?
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