IBM iSeries Series Hardware Problem Analysis And Isolation page 467

System Model, Tower,
Expansion Unit or Machine Type
Models 830 and SB2 system unit
Models 830 and SB2 base I/O
tower (FC 9074)
Models 840 and SB3 system
unit/processor tower
Models 840/SB3 System Unit with
FC 9079 Base I/O Tower
FC 5074 Expansion I/O Tower
FC 5075 Expansion I/O Tower
FC 5078/0578 Expansion I/O
Tower
FC 5079 (1.8m expansion tower)
External xSeries Server
FC 5033, FC 5034, FC 5035 SPD
migrated towers
FC 5077 SPD migrated towers
This ends the procedure.
Power down, power on instructions
Follow these steps if you accidentally pulled an HSL cable, and lost HSL connections to frames that were
in a loop.
1. From the Hardware Service Manager screen, select Packaging hardware resources.
2. Select the frame that has just accidentally lost its HSL connection and select Concurrent
Maintenance. Then, press Enter.
3. Select Power off domain to power off the tower.
4. After reconnecting the frame into the HSL loop, select Power on domain.
HSL Cable or Connections
Note: The HSL cable ports A0 and A1 (for loop number 256) are not on the
Network Interface Controller NIC card in position M06.
v The "A0" port is labeled "1" and is located on the HSL I/O bridge card in
position C08 of the FC 9074 base I/O tower.
v Port "A1" is located on the system unit frame under the NIC card in position
M06. The "A1" port is oriented horizontally below a cross member of the
frame.
v An internal ribbon cable connecting the Network Interface Controller (NIC)
card in position M06 to the HSL I/O bridge in position C08 of the FC 9074
base I/O tower. (The first link on HSL loop 256).
v HSL ports are on the Network Interface Controller (NIC) Card in position M06.
v An internal ribbon cable connecting the HSL I/O bridge in position C08 to the
system unit's Network Interface Controller (NIC) card in position M06. (The
first link on HSL loop 256).
v External HSL port on the HSL I/O bridge card in position C08.
HSL ports are on the Network Interface Controller (NIC) Card in position M17.
External HSL ports on the HSL I/O bridge card in position C08.
External HSL ports on the HSL I/O bridge card in position C08.
v External HSL ports on the tower frame.
v Internal ribbon cable connecting the frame to the tower card in position CB1
External HSL ports on the HSL I/O bridge card in position C08.
External HSL ports on the HSL I/O bridge card in position C08.
External HSL ports on the Integrated xSeries Adapter
v External HSL ports on the frame.
v An HSL interposer card inside the frame behind the external HSL ports.
v An internal ribbon cable connecting the Tower Card in position C00 to the HSL
interposer card inside the frame behind the external HSL ports.
v External HSL ports on the frame.
v An HSL interposer card in position S08.
Analyze hardware problems
455