CHAPTER 4: Troubleshooting
128
D2h
Unknown interrupt
E0h
Initialize the chipset
E1h
Initialize the bridge
E2h
Initialize the CPU
E3h
Initialize the system timer
E4h
Initialize system I/O
E5h
Check force recovery boot
E6h
Checksum BIOS ROM
E7h
Go to BIOS
E8h
Set Huge Segment
E9h
Initialize Multi Processor
EAh
Initialize OEM special code
EBh
Initialize PIC and DMA
ECh
Initialize Memory type
EDh
Initialize Memory size
EEh
Shadow Boot Block
EFh
System memory test
F0h
Initialize interrupt vectors
F1h
Initialize Run Time Clock
F2h
Initialize video
F3h
Initialize System Management Mode
F4h
1
Output one beep before boot
F5h
Boot to Mini DOS
F6h
Clear Huge Segment
F7h
Boot to Full DOS
Code
Beeps
POST Routine Description
Summary of Contents for NV55
Page 1: ... NV55 SERVICEGUIDE ...
Page 6: ...Contents iv ...
Page 12: ...CHAPTER 1 System specifications 6 System block diagram ...
Page 48: ...CHAPTER 2 System utilities 42 ...
Page 140: ...CHAPTER 4 Troubleshooting 134 ...
Page 141: ...CHAPTER5 135 Connector locations System board layout ...
Page 145: ...CHAPTER6 139 FRU Field Replaceable Unit list Introduction Exploded diagram FRU list ...
Page 152: ...CHAPTER 6 FRU Field Replaceable Unit list 146 ...
Page 153: ...APPENDIXA 147 Test compatible components Introduction Microsoft Windows 7 Compatibility Test ...
Page 156: ...APPENDIX A Test compatible components 150 ...
Page 157: ...APPENDIXB 151 Online support information ...
Page 163: ......
Page 164: ...MAN NV5x SVC GDE R1 04 09 ...