Intel® Server System M20MYP1UR System Integration and Service Guide
77
BIOS POST Progress Codes
Table 6 provides a list of all POST progress codes.
Table 6. POST progress codes
Post Code
(Hex)
Nibble
LED 3
(MSB)
LED 2
LED 1
LED 0
(LSB)
Description
SEC Phase
01
Upper
0
0
0
0
First POST code after CPU reset
Lower
0
0
0
1
02
Upper
0
0
0
0
Microcode load begin
Lower
0
0
1
0
03
Upper
0
0
0
0
CRAM initialization begin
Lower
0
0
1
1
04
Upper
0
0
0
0
PEI cache when disabled
Lower
0
1
0
0
05
Upper
0
0
0
0
SEC core at power on begin
Lower
0
1
0
1
06
Upper
0
0
0
0
Early CPU initialization during SEC phase.
Lower
0
1
1
0
Intel® Ultra Path Interconnect (Intel® UPI) RC (Fully leverage without platform change)
A1
Upper
1
0
1
0
Collect info such as SBSP, boot mode, reset type, etc.
Lower
0
0
0
1
A3
Upper
1
0
1
0
Setup minimum path between SBSP and other sockets
Lower
0
0
1
1
A7
Upper
1
0
1
0
Topology discovery and route calculation
Lower
0
1
1
1
A8
Upper
1
0
1
0
Program final route
Lower
1
0
0
0
A9
Upper
1
0
1
0
Program final IO SAD setting
Lower
1
0
0
1
AA
Upper
1
0
1
0
Protocol layer and other uncore settings
Lower
1
0
1
0
AB
Upper
1
0
1
0
Transition links to full speed operation
Lower
1
0
1
1
Содержание M20MYP1UR
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