IBM BladeCenter JS21 Types 8844 Service Manual page 81

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, Types 7988 and 8844," on page 137 to determine which components are
CRUs and which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Error code
BA400001
BA400002
Description
Informational message: DMA trace buffer
full.
Informational message: DMA map-out
size mismatch.
Action
1. Check for server firmware updates; apply if
available.
2. Go to "Checkout procedure" on page 106.
3. Replace the system board and chassis
assembly.
1. Check for server firmware updates; apply if
available.
2. Go to "Checkout procedure" on page 106.
3. Replace the system board and chassis
assembly.
4.
Chapter 2. Diagnostics
65