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thresholds listed in
Emergency H8 Shutdown value listed in
shutdown independent of the shelf manager.
TABLE 5-5
Sensor
CPU Temp 1
CPU Temp 2
Blade Server
Temp
The H8 temperature alarm equivalents are:
Minor Alarm = Upper Non Critical (UNC)
Major Alarm = Upper Critical (UC)
Critical Alarm = Upper Non Recoverable (UNR)
Emergency H8 Shutdown = Emergency H8 Shutdown (EMR)
Caution – These voltage and temperature thresholds should not be changed under
normal operating conditions.
5.2
Power-on Sequence
The following list describes the power-on sequence:
1. Sun Netra CP3060 blade server installed into a midplane slot in ATCA shelf
2. Aux power applied to IPMC and the FPGA
3. IPMC enables front-end DC/DC (48V
4. IPMC checks power ok from front-end DC/DC
5. IPMC enables all voltage rails, and proceeds. if DC_OK
6. MPC boots
7. MPC becomes operational
8. IPMC asserts SYSTEM_POK_ENABLE in FPGA CSRs.
. Also, if the temperature of either CPU goes beyond the
TABLE 5-5
CPU Temperature Alarms
Minor Alarm
(UNC)
°
>80
C
°
>80
C
°
>60
C
, the H8 initiates a blade server
TABLE 5-5
Major Alarm
Critical Alarm
(UC)
(UNR)
°
°
>90
C
> 102
C
°
°
>90
C
> 102
C
°
°
>70
C
> 88
C
12V converter)
–
Chapter 5
Hardware and Functional Descriptions
Emergency H8
Shutdown
°
> 105
C
°
> 105
C
°
> 90
C
5-25
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