Mitsubishi Electric - Computing for a Connected World Insight CD Home Page

Product Identification
Product Timeline
Desktop Systems
Server Systems
Add-in Cards
Sorage Devices
Search Insight
E-Mail us
Insight Service
Year 2000
Other Mitsubishi Sites
Site Disclaimer

FT5000 (Sitka motherboard) - POST Errors

When you turn on the system, the Power On Self-Test (POST) displays messages that provide information about the system. If a failure occurs, POST emits beep codes that indicate errors in hardware, software, or firmware. If POST can display a message on the video display screen, it causes the speaker to beep twice as the message appears.

POST codes and countdown codes

The BIOS indicates the current testing phase during POST after the video adapter has been successfully initialised by outputting a 2-digit hex code to I/O location 80h. If a port-80h ISA POST board is installed, it displays the 2-digit code on a pair of hex display LEDs.

Port 80 codes

Normal Port 80 Codes

02   Verify Real Mode
04   Get processor type
06   Initialize system hardware
08   Initialize chipset registers with initial POST values
09   Set in POST flag
0A   Initialize processor registers
0B   Enable processor cache
0C   Initialize caches to initial POST values
0E   Initialize I/O
0F   Initialize the local bus IDE
10   Initialize Power Management
11   Load alternate registers with initial POST valuesnew
12   Restore processor control word during warm boot
14   Initialize keyboard controller
16 1-2-2-3 BIOS ROM checksum
18   8254 timer initialization
1A   8237 DMA controller initialization
1C   Reset Programmable Interrupt Controller
20 1-3-1-1 Test DRAM refresh
22 1-3-1-3 Test 8742 Keyboard Controller
24   Set ES segment register to 4GB
28 1-3-3-1 Autosize DRAM
2A   Clear 512K base RAM
2C 1-3-4-1 RAM failure on address line xxxx*
2E 1-3-4-3 RAM failure on data bits xxxx* of low byte of memory bus
30 1-4-1-1 RAM failure on data bits xxxx* of high byte of memory bus
32   Test processor bus-clock frequency
34   Test CMOS
35   RAM Initialize alternate chipset registers
36   Warm start shut down
37   Reinitialize the chipset (MB only)
38   Shadow system BIOS ROM
39   Reinitialize the cache (MB only)
3A   Autosize cache
3C   Configure advanced chipset registers
3D   Load alternate registers with CMOS valuesnew
40   Set Initial processor speed new
42   Initialize interrupt vectors
44   Initialize BIOS interrupts
46 2-1-2-3 Check ROM copyright notice
47   Initialize manager for PCI Option ROMs
48   Check video configuration against CMOS
49   Initialize PCI bus and devices
4A   Initialize all video adapters in system
4B   Display QuietBoot screen
4C   Shadow video BIOS ROM
4E   Display copyright notice
50   Display processor type and speed
51   Initialize EISA board
52   Test keyboard
54   Set key click if enabled
56   Enable keyboard
58 2-2-3-1 Test for unexpected interrupts
5A   Display prompt "Press F2 to enter SETUP"
5C   Test RAM between 512 and 640k
60   Test extended memory
62   Test extended memory address lines
64   Jump to UserPatch1
66   Configure advanced cache registers
68   Enable external and processor caches
6A   Display external cache size
6C   Display shadow message
6E   Display non-disposable segments
70   Display error messages
72   Check for configuration errors
74   Test real-time clock
76   Check for keyboard errors
7A   Test for key lock on
74   Test real-time clock
76   Check for keyboard errors
7A   Test for key lock on
7C   Set up hardware interrupt vectors
7E   Test coprocessor if present
80   Detect and install external RS232 ports
82   Detect and install external parallel ports
85   Initialize PC-compatible PnP ISA devices
86   Re-initialize on board I/O ports
88   Initialize BIOS Data Area
8A   Initialize Extended BIOS Data Area
8C   Initialize floppy controller
90   Initialize hard disk controller
91   Initialize local bus hard disk controller
92   Jump to UserPatch2
93   Build MPTABLE for multi-processor boards
94   Disable A20 address line
95   Install CD-ROM for boot
96   Clear huge ES segment register
98 1-2 Search for option ROMs. One long, two short beeps on checksum failure
9A   Shadow option ROMs
9C   Set up Power Management
9E   Enable hardware interrupts
A0   Set time of day
A2   Check key lock
A4   Initialize typematic rate
A8   Erase F2 prompt
AA   Scan for F2 key stroke
AC   Enter SETUP
AE   Clear in-POST flag
B0   Check for errors
B2   POST done – prepare to boot Operating System
B4 1 One short beep before boot
B5   Display MultiBoot menu
B6   Check password (optional)
B8   Clear global descriptor table
BC   Clear parity checkers
BE   Clear screen (optional)
BF   Check virus and backup reminders
C0   Try to boot with INT 19
DO   Interrupt handler error
D4   Pending interrupt error
D6   Initialize option ROM error
D8   Shutdown error
DA   Extended Block Move
DC   Shutdown 10 error

*xxxx = hexadecimal number 


POST error codes and messages

The following error codes and messages are representative of various conditions BIOS identifies. The exact strings and error numbers may be different from those listed here.

Code Error message
0162 BIOS unable to apply BIOS update to processor 1
0163 BIOS unable to apply BIOS update to processor 2
0164 BIOS does not support current stepping for processor 1
0165 BIOS does not support current stepping for processor 2
0200 Failure Fixed Disk
0210 Stuck Key
0211 Keyboard error
0212 Keyboard Controller Failed
0213 Keyboard locked - Unlock key switch
0220 Monitor type does not match CMOS - Run SETUP
0230 System RAM Failed at offset
0231 Shadow RAM Failed at offset
0232 Extended RAM Failed at offset
0250 System battery is dead - Replace and run SETUP
0251 System CMOS checksum bad - Default configuration used
0260 System timer error
0270 Real-time clock error
0297 ECC Memory error in base (extended) memory test in Bank xx
02B2 Incorrect Drive A type - run SETUP
02B3 Incorrect Drive B type - run SETUP
02D0 System cache error - Cache disabled
02F5 DMA Test Failed
02F6 Software NMI Failed
0401 Invalid System Configuration Data - run configuration utility
None System Configuration Data Read Error
0403 Resource Conflict
0404 Resource Conflict
0405 Expansion ROM not initialized
0406 Warning: IRQ not configured
0504 Resource Conflict
0505 Expansion ROM not initialized
0506 Warning: IRQ not configured
0601 Device configuration changed
0602 Configuration error - device disabled
8100 Processor 0 failed BIST
8101 Processor 1 failed BIST
8104 Processor 0 Internal Error (IERR) failure
8105 Processor 1 Internal Error (IERR) failure
8106 Processor 0 Thermal Trip failure
8107 Processor 1 Thermal Trip failure
8108 Watchdog Timer failed on last boot, BSP switched
810A Processor 1 failed initialization on last boot
810B Processor 0 failed initialization on last boot
810C Processor 0 disabled, system in uniprocessor mode
810D Processor 1 disabled, system in uniprocessor mode
810E Processor 0 failed FRB Level 3 timer
810F Processor 1 failed FRB Level 3 timer
8110 Server Management Interface failed to function
8120 IOP subsystem is not functional
8150 NVRAM Cleared by Jumper
8151 NVRAM Checksum Error, NVRAM cleared
8152 NVRAM Data Invalid, NVRAM cleared



Computing for a Connected World