Dell PowerEdge 4300 Dell PowerEdge 4300 Systems Service Manual - Page 48
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Improperly installed or faulty expansion card Loose or improperly connected keyboard cable connector, defective keyboard, or defective keyboard/mouse controller (defective system board) Defective keyboard/ mouse controller (defective system board) Loose or improperly connected keyboard cable connector, defective keyboard, or defective keyboard/mouse controller (defective system board) Reinstall the expansion card(s). If the problem persists, replace the expansion card(s). Check the keyboard cable connection. Replace the keyboard. If the problem persists, replace the system board. Replace the system board. Check the keyboard cable connection. Replace the keyboard. If the problem persists, replace the system board. 3-8 Dell PowerEdge 4300 Systems Service Manual
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