Lenovo THINKCENTRE 6019 Hardware Maintenance Manual page 87

c. Memory modules
d. Extended video memory
e. External Cache
f. External Cache RAM
g. Hard disk drive
h. Diskette drive
3. Power-on the computer to re-test the system.
4. Repeat steps 1 through 3 until you find the failing device or adapter.
If all devices and adapters have been removed, and the problem continues, replace
the system board.
Chapter 7. Symptom-to-FRU Index
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