Service Reference Guide, dc5750 437963-001 C–5
POST Error Messages
918-Front USB Not
Connected
Front USB harness has
been detached or
unseated from system
board.
Reconnect or replace front USB harness.
921-Device in PCI
Express slot failed to
initialize.
There is an
incompatibility/problem
with this device and the
system or PCI Express Link
could not be retrained to
an x1.
Try rebooting the system. If the error
reoccurs, the device may not work with
this system.
1151- S e r i a l P o r t A
Address Conflict
Detected
Both external and internal
serial ports are assigned
to COM1.
1. Remove any serial port expansion
cards.
2. Clear CMOS.
3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.
1152-Serial Port B
Address Conflict
Detected
Both external and internal
serial ports are assigned
to COM2.
1. Remove any serial port expansion
cards.
2. Clear CMOS.
3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.
1155-Serial Port Address
Conflict Detected
Both external and internal
serial ports are assigned
to same IRQ.
1. Remove any serial port expansion
cards.
2. Clear CMOS.
3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.
12 01- Sy s t e m A u d i o
Address Conflict
Detected
Device IRQ address
conflicts with another
device.
Enter Computer Setup and reset the IRQ
in Advanced > Onboard Devices.
1202-MIDI Port Address
Conflict Detected
Device IRQ address
conflicts with another
device.
Enter Computer Setup and reset the IRQ
in Advanced > Onboard Devices.
12 0 3 - G a m e Por t
Address Conflict
Detected
Device IRQ address
conflicts with another
device.
Enter Computer Setup and reset the IRQ
in Advanced > Onboard Devices.
POST Error Messages (Continued)
Screen Message Probable Cause Recommended Action
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