Table 2. Firmware Checkpoints. (continued)Checkpoint Description Action/ Possible Failing FRUE20B Check MCERs stuck at fault. Go to MAP 1540: MinimumConfiguration, “Step 1540-24” onpage 77.E20C Testing L2 cache. 1. Replace the processor card.Location: P1-C1Location: P1-C2(See notes on page 109.)2. See “Unresolved CheckpointProblems” on page 81.E210 Processors L1 data cache array testfails. System hangs.See “Unresolved Checkpoint Problems”on page 81.E211 IPL ROS CRC checking. Go to MAP 1540: MinimumConfiguration, “Step 1540-24” onpage 77.E212 Processor POST. 1. Replace the processor card.Location: P1-C1Location: P1-C2(See notes on page 109.)2. See “Unresolved CheckpointProblems” on page 81.E213 Initial memory configuration. Go to “MAP 1240: Memory ProblemResolution” on page 45.E214 Memory test. Go to “MAP 1240: Memory ProblemResolution” on page 45.E216 Copy ROS into RAM. Setup translationand C environment. 1. Go to “MAP 1240: Memory ProblemResolution” on page 45.2. See “Unresolved CheckpointProblems” on page 81.E218 Memory test. Go to “MAP 1240: Memory ProblemResolution” on page 45.E21A System has good memory See “Unresolved Checkpoint Problems”on page 81.E220 Final memory configuration. Go to “MAP 1240: Memory ProblemResolution” on page 45.E240 Setup Winbond ISA bridge. Go to MAP 1540: MinimumConfiguration, “Step 1540-24” onpage 77.E241 Reset PCI Bus. Go to MAP 1540: MinimumConfiguration, “Step 1540-24” onpage 77.E242 Initialize ISA DMA channel. Go to MAP 1540: MinimumConfiguration, “Step 1540-24” onpage 77.Chapter 4. Checkpoints 103