Index 50main memory, 1-3, 1-16memory subsystemexpansion using DIMMs, 1-16flash ROM, 1-4main memory, 1-3secondary L2 cache, 1-3, 1-15messages, error, 3-3microprocessorabout, 1-3removal, low-profile computer, 4-19removal, midsize computer, 5-22removal, mini tower computer, 6-24removal, OptiPlex NX1 computer,7-161network cable requirements, 1-7NICconnector indicators, 1-6controller, 1-6optional support, 1-62online documentation, 1-16optional-stand removalmidsize computer, 5-4OptiPlex NX1 computer, 7-3options, upgrade, 1-153PCI expansion-card connectorslow-profile computer, 1-13midsize computer, 1-13mini tower computer, 1-15OptiPlex NX1 computer, 1-13pin assignmentsDC power connectors, OptiPlexGX1 computer, 1-23DC power connectors, OptiPlexNX1 computer, 1-30Plug and Play expansion cards, 1-12port assignmentslow-profile computer, 1-9midsize computer, 1-10mini tower computer, 1-11OptiPlex NX1 computer, 1-12POST beep codes, 3-1power button removallow-profile computer, 4-4midsize computer, 5-6mini tower computer, 6-6power indicator, 1-8power supplyabout, 1-7, 1-22, 1-29cables, low-profile computer, 1-25cables, midsize and mini towercomputers, 1-28cables, OptiPlex NX1 computer,1-31DC voltage ranges, OptiPlex GX1,1-22DC voltages ranges, OptiPlex NX1,1-30flea power, 1-7power distribution, 1-32power distribution, low-profilecomputer, 1-26power distribution, midsizecomputer, 1-28power distribution, mini towercomputer, 1-29power distribution, OptiPlex NX1computer, 1-32removal, low-profile computer, 4-11removal, midsize computer, 5-14removal, mini tower computer, 6-16removal, OptiPlex NX1 computer,7-8service data, 1-22voltage ranges, OptiPlex GX1computer, 1-22