IBM RS/6000 7046 Service Manual page 80

Checkpoint Description
(hex)
E122 No memory
detected (system
lockup) Note:
Harddisk light is on
continuously
E123 No SIMM found in
the socket
E124 Disable defective
memory bank
E125 Clear PCI devices
command reg, go
forth
E126 Check valid image -
start
E127 Check valid image -
successful
E128 Disable interrupts,
set int vectors for
O.F.
E129 Validate target RAM
address
E12A Copy ROM to RAM,
flush cache
E12B Set MP operational
parameters (eg.
L.E.?, Real?)
E12C Set MP CPU node
characteristics
E12D Park secondary
processors in
parking lot
E12E Primary processor
sync
E12F Unexpected return
from Open Firmware
(system lockup)
E130 Build device tree
E131 Create ROOT node
E132 Create CPUs node
3-16
7046 Model B50 Service Guide
All manuals and user guides at all-guides.com
Repair Action
1. Replace memory dimm(s)
2. Replace System Planar
3. Replace System Planar
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26
See "Unresolved problems" on page 3-26