Alarm, error, and system messages
12.3 BIOS beep codes
SIMATIC HMI IPC677C
166 Operating Instructions, 04/2013, A5E02722710-04
Display
(hex)
Meaning Description Remedy
73H PEI_CPU_HT_RESET HyperTransport
initial
Initialize Hyper
Transport functionality
Service case
74H PEI_PCIE_MMIO_INIT PCIE MMIO
BAR Initial
Initialize PCIE Register Service case
75H PEI_NB_REG_INIT North Bridge
Early Initial
Initialization of the
North bridge
Service case
76H PEI_SB_REG_INIT South Bridge
Early Initial
Initialization of the
South bridge
Service case
77H PEI_PCIE_TRAINING PCIE Training Training phase of the
PCIE device
Service case
79H PEI_SMBUS_INIT SMBUS Early
Initial
Initialization of the SM
Bus
Service case
41H DXE_SB_SPI_INIT South bridge
SPI initial
Initialization of the
Serial Peripheral
Interface in the South
Bridge
Service case
42H DXE_CF9_RESET Setup Reset
service,
DXE_CF9Reset
Setup Reset service Service case
43H DXE_SB_SERIAL_GPIO_INIT South bridge
Serial GPIO
initial,
DXE_SB_Serial
GPIO_INIT
Initializations of the
serial GPIO
Service case
44H DXE_SMMACCESS Setup SMM
ACCESS
service
Setup SMM access
service
Service case
45H DXE_NB_INIT North bridge
Middle initial
Initialization of the
North Bridge
Service case
46H DXE_SIO_INIT Super I/O DXE
initial
Initialization of the
Super IO
Service case
47H DXE_LEGACY_REGION Setup Legacy
Region service,
DXE_LegacyRe
gion
Setup service Legacy
region
Service case
48H DXE_SB_INIT South Bridge
Middle Initial
Initialization of the
South Bridge
Service case
49H DXE_IDENTIFY_FLASH_DEVICE Identify Flash
device
Identify FLASH type Service case
4AH DXE_FTW_INIT Fault Tolerant
Write verification
Checking of the write
fault tolerance
Service case
4BH DXE_VARIABLE_INIT Variable Service
Initial
Initialization of the
variable service
Service case
4CH DXE_VARIABLE_INIT_FAIL Fail to initial
Variable Service
Failure to initialize the
variable service
Service case
26H BDS_CONNECT_LEGACY_ROM Dispatch option
ROMs
Callup of the Legacy
Option ROMs
Service case