Mitsubishi Electric Apricot LS 550 Owner's Handbook Manual page 67

1 Positioning guide
2 Keyed corner
6. You will need to adjust the processor speed selection jumpers on
the motherboard. See Appendix A, "Inside the System Unit", for
more information about locating and adjusting motherboard
jumper settings.
7. If necessary replace the expansion cards you removed earlier.
8. Replace the system unit cover.
S y s t e m U p g r a d e s
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LS/VS 550 OWNER'S HANDBOOK 5/13