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8 speaker, 9 heat sink, 10 processor – Dell OptiPlex 990 (Early 2011) User Manual

Page 4: 11 coin-cell battery, 12 chassis fan, 13 input/output panel, 14 power supply, 15 system board

8 speaker, 9 heat sink, 10 processor | 11 coin-cell battery, 12 chassis fan, 13 input/output panel, 14 power supply, 15 system board | Dell OptiPlex 990 (Early 2011) User Manual | Page 4 / 94 8 speaker, 9 heat sink, 10 processor | 11 coin-cell battery, 12 chassis fan, 13 input/output panel, 14 power supply, 15 system board | Dell OptiPlex 990 (Early 2011) User Manual | Page 4 / 94