System board diagnostic LED indicators
The system board LED indicators provide status of the system when it is powered on, which help identify POST and hardware
issues.
The following tables show the behavior system board diagnostic LED indicators during power sequencing and power faults.
Table 73. System board diagnostic LED indicators during power sequencing
DS7 DS6 DS5 DS4 DS3 DS2 DS1 Description
System Off
Power on
Reset
5V_AUX
Enabled,
waiting for
5V_AUX /
V_VSB11_AU
X Power
Good
VRD_1P05_P
VNN_SW_EN
enabled,
waiting for
VRD_1P05_P
VNN_SW_PG
Power Good
&PCH_SLP_
SUS_N
PCH_RSMRS
T_R_N
Enabled,
waiting
cBmcPostRea
dy ready.
Waiting for
PS*_PG
ready.
[S5_IDLE]
Waiting for
cSysPowerOn
= '1' &
cBMCHoldInS
5 = '0' &
cGpu_Fpga_R
eady = '1'.
CPLD_MEM_
VIN_MGMT_
EN_R =
cDimmCheck
Good.
10
156 System board diagnostic LED indicators