Table 6. Pass 9 level system board jumpers (continued)
Jumper number
Jumper name
Jumper setting
J147
IMM recovery jumper
v
Pins 1 and 2: Normal
(default) Loads the primary
IMM firmware ROM page.
v
Pins 2 and 3: Loads the
secondary (backup) IMM
firmware ROM page.
Notes:
1. If no jumper is present, the server responds as if the pins are set to 1 and 2.
2. Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and
3 before the server is turned on alters which flash ROM page is loaded. Do not change
the jumper pin position after the server is turned on. This can cause an unpredictable
problem.
42
IBM System x3550 M2 Types 4198 and 7946: Installation and User’s Guide
Summary of Contents for 79463AU
Page 1: ...IBM System x3550 M2 Types 4198 and 7946 Installation and User s Guide...
Page 2: ......
Page 3: ...IBM System x3550 M2 Types 4198 and 7946 Installation and User s Guide...
Page 8: ...vi IBM System x3550 M2 Types 4198 and 7946 Installation and User s Guide...
Page 134: ...118 IBM System x3550 M2 Types 4198 and 7946 Installation and User s Guide...
Page 140: ...124 IBM System x3550 M2 Types 4198 and 7946 Installation and User s Guide...
Page 141: ......
Page 142: ...Part Number 81Y6100 Printed in USA 1P P N 81Y6100...