Lenovo 7611, 7721, 7715, 7774, 7706, 7719, 7749, 7799, 7773, 7705, 7717, 7718, 7522 Symptom-to-FRU index

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 81