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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, TD100 Types 6398, 6399, 6419, 6429, 4203, and 4206,” on page 25 to
determine which components are customer replaceable units (CRU) and which components are field
replaceable units (FRU).
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 Description Action
1804 No more memory (below 1 MB for a PCI,
PCI-X, or PCI Express adapter).
1. Make sure that the settings for the adapter and all
other adapters in the Configuration/Setup Utility
program are correct.
2. If the error code indicates a particular PCI, PCI-X,
or PCI Express slot or device, remove that
device.
3. Reseat each adapter.
4. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Adapter
b. (Trained service technician only) System
board
1805 PCI option ROM checksum error.
1. Remove the failing adapter.
2. Reseat each adapter.
3. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Adapter
b. (Trained service technician only) System
board
1806 PCI built-in self-test failure.
1. Make sure that the settings for the adapter and all
other adapters in the Configuration/Setup Utility
program are correct.
2. If the error code indicates a particular PCI, PCI-X,
or PCI Express slot or device, remove that
device.
3. Reseat each adapter.
4. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Adapter
b. (Trained service technician only) System
board
162 ThinkServer TD100 and TD100x: Hardware Maintenance Manual