Checkpoints - QUANTA W Mainboard Series S210-MBT2W Technical Manual

BIOS
[2.3.209] The BIOS supports the EFI PXE implementation. To
utilize this, the user must load EFI Simple Network Protocol
driver and the UNDI driver specific for the network interface
card being used. The UNDI driver should be included with the
network interface card. The Simple Network Protocol driver can
be obtained from http://developer.intel.com/technology/frame-
work.
[2.3.210] The BIOS supports legacy PXE option ROMs in leg-
acy mode and includes the necessary PXE ROMs in the BIOS
image for the onboard controllers. The legacy PXE ROM is
required to boot a non-EFI operating system over the network.
[2.3.211]

[2.3.212] Checkpoints

[2.3.213] A checkpoint is either a byte or word value output to
Debug port. The BIOS outputs checkpoints throughout boot-
block and Power-On Self Test (POST) to indicate the task the
system is currently executing. Checkpoints are very useful in
aiding software developers or technicians in debugging prob-
lems that occur during the pre-boot process.
[2.3.214] Checkpoint Ranges
[2.3.215] Checkpoint Ranges
S C
TATUS ODE
R
ANGE
0x01 – 0x0B SEC execution
0x0C – 0x0F SEC errors
0x10 – 0x2F PEI execution up to and including memory detection
0x30 – 0x4F PEI execution after memory detection
0x50 – 0x5F PEI errors
0x60 – 0x8F DXE execution up to BDS
0x90 – 0xCF BDS execution
0xD0 – 0xDF DXE errors
0xE0 – 0xE8 S3 Resume (PEI)
2-58
C
HECKPOINTS
D
ESCRIPTION