Siemens SIMATIC IPC847D Operating Instructions Manual page 188

Technical specifications
8.6 BIOS description
Meaning
Display
(hex)
7CH PEI_HECI_INIT
7DH PEI_WATCHDOG_INIT
7EH PEI_MEMORY_INIT
7FH PEI_MEMORY_INIT_FOR_CRISIS
80H PEI_MEMORY_INSTALL
81H PEI_TXTPEI
82H PEI_SWITCH_STACK
83H PEI_MEMORY_CALLBACK
84H PEI_ENTER_RECOVERY_MODE
85H PEI_RECOVERY_MEDIA_FOUND
86H PEI_RECOVERY_MEDIA_NOT_
FOUND
87H PEI_RECOVERY_LOAD_FILE_DON
E
88H PEI_RECOVERY_START_FLASH
89H PEI_ENTER_DXEIPL
8AH PEI_FINDING_DXE_CORE
8BH PEI_GO_TO_DXE_CORE
Special codes
Only the following BIOS post messages are output as beep code:
● No RAM: 1 short beep long pause, cyclic, if possible
● Incorrect RAM pairing ECC/nonECC: 2 short beeps long pause, cyclic, if possible
● No Graphics Controller available: 3 long beeps, once, can be deactivated
188
Description
HECI Initial
Watchdog timer initial
Memory Initial for Normal
boot
Memory Initial for Crisis
Recovery
Simple Memory test
TXT function early initial
Start to use Memory
Set cache for physical
memory
Recovery device initial
Found Recovery image
Recovery image not found
Load Recovery Image
complete
Start Flash BIOS with
Recovery image
Loading BIOS image to
RAM
Loading DXE core
Enter DXE core
Initialization of the Host
Embedded Controller
Interface
Initialization of the watchdog
timer
Memory initialization during
the PEI phase
Memory initialization for
BIOS recovery
Memory test
Initialization of the Trusted
Execution Technology
Start the memory use
Use cache as a physical
memory
Initialize the device for BIOS
recovery
BIOS Recovery image
found
BIOS Recovery image not
found
Loading of BIOS Recovery
image completed
Starting of flashing of BIOS
Recovery image
Copy BIOS image to the
RAM
Loading DXE (Driver
Execution Environment)
program
Start DXE program
Operating Instructions, 01/2014, A5E32997454-AA
Remedy
Service case
Service case
Replace the
memory
modules
Replace the
memory
modules
Replace the
memory
modules
Service case
Service case
Service case
Service case
Service case
Check
whether the
BIOS
Recovery
image exists
on the
recovery
medium (e.g.
USB stick).
Service case
Service case
Service case
Service case
Service case
SIMATIC IPC847D