Dell OptiPlex GX50, User Manual

Page: 200 / 276

198 Solving Problems
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3-2-4 Keyboard Controller
Test failure Run the Keyboard tests in the Dell
Diagnostics . Otherwise, see " Getting
Help " for instructions on obtaining
technical assistance.
3-3-1 NVRAM power loss Run the System Board Devices tests in
the Dell Diagnostics , if possible.
3-3-2 NVRAM configuration Run the System Board Devices tests in
the Dell Diagnostics , if possible.
3-3-4 Video Memory Test
failure Run the VESA/VGA Interface tests in
the Dell Diagnostics .
3-4-1 Screen initialization
failure Run the VESA/VGA Interface tests in
the Dell Diagnostics .
3-4-2 Screen retrace failure Run the VESA/VGA Interface tests in
the Dell Diagnostics .
3-4-3 Search for video ROM
failure Run the VESA/VGA Interface tests in
the Dell Diagnostics .
4-2-1 No time tick See " Getting Help " for instructions on
obtaining technical assistance.
4-2-2 Shutdown failure See " Getting Help " for instructions on
obtaining technical assistance.
4-2-3 Gate A20 failure See " Getting Help " for instructions on
obtaining technical assistance.
4-2-4 Unexpected interrupt
in protected mode See " Getting Help " for instructions on
obtaining technical assistance.
4-3-1 Memory failure above
address 0FFFFh Run the System Memory tests in the
Dell Diagnostics .
4-3-3 Timer-chip counter 2
failure See " Getting Help " for instructions on
obtaining technical assistance.
4-3-4 Time-of-day clock
stopped See " Getting Help " for instructions on
obtaining technical assistance.
4-4-1 Serial or parallel port
test failure Run the Serial Ports and the Parallel
Ports tests in the Dell Diagnostics .
Code Cause Action