IBM RS/6000 44P 270 Service Manual page 106

Table 2. Firmware Checkpoints. (continued)
Checkpoint
E21A
E220
E240
E241
E242
E243
E244
E246
E247
E249
E24C
88
Service Guide
Description
System has good memory
Final memory configuration.
Setup Winbond ISA bridge.
Reset PCI Bus.
Initialize ISA DMA channel.
Setup Grackle configuration registers.
Enable system speaker and send a
beep.
System firmware corrupted, take
recovery path.
Capture DIMM SPDs into NVRAM.
Enter recover path's main code.
L2 cache array test fails. System hangs. 1. Replace I/O board. (See note on
Action/ Possible Failing FRU
Go to "MAP 1540: Minimum
Configuration" on page 50.
Go to "MAP 1240: Memory Problem
Resolution" on page 39.
1. Replace I/O board. (See notes on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.
1. Replace I/O board. (See notes on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.
1. Replace I/O board. (See notes on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.
1. Replace I/O board. (See note on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.
1. Replace I/O board. (See note on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50..
1. Replace I/O board. (See note on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50..
1. Replace I/O board. (See note on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.
1. Replace I/O board. (See note on
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.
page 93.)
2. Go to "MAP 1540: Minimum
Configuration" on page 50.