HP COMPAQ DC5750 Service & Reference Manual page 159

POST Error Messages (Continued)
Screen Message
918-Front USB Not
Connected
921-Device in PCI
Express slot failed to
initialize.
1 151-Serial Port A
Address Conflict
Detected
1 152-Serial Port B
Address Conflict
Detected
1 155-Serial Port Address
Conflict Detected
1201-System Audio
Address Conflict
Detected
1202-MIDI Port Address
Conflict Detected
1203-Game Port
Address Conflict
Detected
Service Reference Guide, dc5750
Probable Cause
Front USB harness has
been detached or
unseated from system
board.
There is an
incompatibility/problem
with this device and the
system or PCI Express Link
could not be retrained to
an x1.
Both external and internal
serial ports are assigned
to COM1.
Both external and internal
serial ports are assigned
to COM2.
Both external and internal
serial ports are assigned
to same IRQ.
Device IRQ address
conflicts with another
device.
Device IRQ address
conflicts with another
device.
Device IRQ address
conflicts with another
device.
437963-001
POST Error Messages
Recommended Action
Reconnect or replace front USB harness.
Try rebooting the system. If the error
reoccurs, the device may not work with
this system.
1. Remove any serial port expansion
cards.
2. Clear CMOS.
3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.
1. Remove any serial port expansion
cards.
2. Clear CMOS.
3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.
1. Remove any serial port expansion
cards.
2. Clear CMOS.
3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.
Enter Computer Setup and reset the IRQ
in Advanced > Onboard Devices.
Enter Computer Setup and reset the IRQ
in Advanced > Onboard Devices.
Enter Computer Setup and reset the IRQ
in Advanced > Onboard Devices.
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