Model 820 - Control panel - NB1
Model 820 - Covers
Model 820 - Device board - DB1 and DB2
Model 820 - Disk unit (concurrent)
Model 820 - Disk unit (dedicated)
Model 820 - Memory
Model 820 - Power supply - P01, P02, and P03
Model 820 - Processor - M03
Model 820 - Processor regulator - M03
Model 820 - Removable media - D13 and D14
Model 820 - System unit backplane (MB1) and power distribution board (PB1)
Model 820 - Time of day (TOD) battery
Model 820 - Air moving device (AMD) - B01 through B04
For use by authorized service providers.
Use this procedure to remove or replace the air moving device (AMD) - B01 through B04 in the Model
820. Follow either the concurrent (See page 17) or dedicated (See page 17) procedure below.
Concurrent procedure
To remove or replace the air moving device - B01, B02, B03, and B04 concurrently:
The configuration of three power supplies and four AMDs must be installed to use this procedure. Use
the dedicated procedure below with less than four AMDs.
Note: The replacement fan must be reconnected within 30 seconds of removal of failed unit or system
failure/shutdown may result.
1. Remove the front cover. See Model 820 - Covers.
2. Remove the AMD by pulling out on the latch and pivoting it towards you.
3. Reverse this procedure to install the AMD.
This ends the procedure.
Dedicated procedure
To remove or replace the air moving device - B01 and B03 using dedicated maintenance:
1. Power off the system. See Power on/off the system and logical partitions.
2. Remove the front cover. See Model 820 - Covers.
3. Remove the AMD by pulling out on the latch and pivoting it towards you.
4. Reverse this procedure to install the AMD.
This
ends the procedure.
Analyze hardware problems 17
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