IBM iSeries 820 Hardware Problem Analysis And Isolation

System model, tower, expansion unit, or machine
type HSL cable or connections
Model 800 or 810 without processor features 7428,
7429, or 7430
See Locations — Models 800 and 810
The Network Interface Controller (NIC) is embedded in
the system unit backplane (position MB1).
v There is an HSL ribbon cable from the system unit
backplane (position MB1) to the external HSL ports on
the frame.
v There is an internal HSL connection from the NIC to
the HSL I/O bridge embedded in the system unit
backplane.
v There is an internal HSL connection from the HSL I/O
bridge component embedded in the system unit
backplane to the HSL ribbon cable port on the system
unit backplane.
Model 825
See
Locations — Model 825
v External HSL ports on the HSL interposer card in
position C08 or C09.
v The HSL interposer card in position C08 or C09 that
connect to CB1.
v External HSL ports on the NIC card in position MB1.
Models 870 or 890
See Locations - Models 870 and 890 with an FC 9094
Base I/O Tower
External HSL ports on the NIC card in position M30, M39,
M40, or M41.
FC 5074 Expansion I/O Tower
See
Locations - FC 5074 Expansion I/O Tower
External HSL ports on the HSL I/O bridge card in position
C08.
FC 5075 Expansion I/O Tower
See Locations - FC 5075 Expansion I/O Tower
v External HSL ports on the tower frame.
v Internal ribbon cable connecting the frame to the tower
card in position CB1.
FC 5078, FC 0578 Expansion I/O Unit
See Locations - FC 5078, FC 0578 Expansion I/O Unit
External HSL ports on the HSL I/O bridge card in position
C08.
FC 5079 (1.8m expansion tower)
See Locations - FC 5079 Expansion I/O Tower
External HSL ports on the HSL I/O bridge card in position
C08.
FC 5088 or FC 0588 Expansion I/O unit
See
Locations - FC 5088, FC 0588 Expansion I/O Unit
External HSL ports on the HSL I/O bridge card in position
C10.
FC 5094, FC 9094 Expansion I/O Tower
See Locations - FC 5094, FC 9094 Expansion I/O Tower
External HSL ports on the HSL I/O bridge card in position
C10.
FC 5095, 0595 Expansion I/O Tower
See Locations - FC 5095, 0595 Expansion I/O Tower
External HSL ports on the HSL I/O bridge card in position
C05.
External xSeries
(TM)
Server
See Locations - External xSeries Server
External HSL ports on the Integrated xSeries Adapter.
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.
294 iSeries: iSeries Server 270, 800, 810, 820, 825, 830, 840, 870, 890, SB2, and SB3 Hardware Problem Analysis and
Isolation

IBM iSeries 820 Specifications

General

Brand	IBM
Model	iSeries 820
Category	Server
Language	English