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Code
t4
P1
U1
U2
U3
U4
A0
P5
_5
33
15
Ut
5U
nb
SAS-SATA device numbers
The server supports a combination of up to 18 SAS and SATA hard drives in the SAS-SATA hard drive
cage. SAS-SATA devices are numbered 1 through 18.
HP recommends populating hard drive bays starting with the lowest SAS ID or device number.
Component
Processor 4 unsupported
Processor 1 is missing
PPM1 is missing
PPM2 is missing
PPM3 is missing
PPM4 is missing
Pre POST code
Power supply
Power backplane
Power backplane
1.5-V Regulator
VTT Regulator
PPM Failure
No boot
Explanation
Processor 4 unsupported. Replace with a supported
processor.
Processor 1 is missing, and is required to boot. Install
Processor 1. If processor 4 is installed and the system is
booting up, the P1 code and Port 84/85 will be
displayed for 1 second each to show the unit is booting.
Processor 1 is installed without PPM 1. Install PPM 1.
Processor 2 is installed without PPM 2. Install PPM 2.
Processor 3 is installed without PPM 3. Install PPM 3.
Processor 4 is installed without PPM 4. Install PPM 4.
Standby mode
No power from the power supply
No 5-V power from the power supply backplane board
No 3.3-V power from the power supply backplane
board
No 1.5-V power from the voltage regulator on the system
board
No power from the VTT voltage regulator on the system
No power from the PPM
Indicates a no-boot situation
Server component identification 16
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