Table 5. Firmware Error Codes. (continued)
Error Code Description Action/ Possible Failing FRU
28A00344 EPOW monitoring hardware is
downlevel.
1. Replace I/O drawer planar.
See note 5 on page 157 for location
code information related to this error.
28A00345 Power supply EPOW. Both power
supplies have failed.
1. Replace I/O drawer power supplies
1 and 2.
2. Replace I/O drawer planar.
See note 5 on page 157 for location
code information related to this error.
28A00346 Power supply EPOW. Only one power
supply is present and it has failed.
1. Replace I/O drawer power supply.
2. Replace I/O drawer planar.
See note 5 on page 157 for location
code information related to this error.
28A00347 Environmental condition. One power
supply and one fan has failed.
1. Replace failing power supply and
failing fan in I/O drawer.
2. Replace I/O drawer planar.
See note 5 on page 157 for location
code information related to this error.
28A00348 Power supply EPOW. Loss of redundant
power supply. Two power supplies are
present and one has failed.
1. Replace I/O drawer failing power
supply.
2. Replace I/O drawer planar.
See note 5 on page 157 for location
code information related to this error.
28A00350 Thermal I2C bus hang. Firmware cannot
read the status of the thermal sensors.
This error will prevent the system from
booting.
Replace I/O drawer planar.
To identify failing I/O drawer location,
see note 5 on page 157.
28A00351 VPD I2C bus hang. Firmware cannot
read the VPD in the indicated I/O
drawer.
Replace I/O drawer planar.
To identify failing I/O drawer location,
see note 5 on page 157.
28A00352 FMC I2C bus hang. Firmware cannot
read the status of the fan sensors. This
error will prevent the system from
booting.
1. Replace the fan monitoring card.
2. Replace the power distribution
board.
3. Replace I/O drawer planar.
To identify failing I/O drawer location,
see note 5 on page 157.
172 Service Guide
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