Siemens SIMATIC HMI IPC677C Operating Instructions Manual page 166

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