Dell OptiPlex 740 User's Guide - Page 196
Windows Security window; in MS-DOS, Internal USB - install memory
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Connectors PCI 2.3 PCIe-X16 Internal USB Intrusion switch Speaker Memory modules Power 12V Power Battery Front panel 124-pin connector 164-pin connector 10-pin connector 3-pin connector 5-pin connector four 240-pin connectors 4-pin connector 24-pin connector 2-pin socket 40-pin connector Key Combinations or or in Microsoft® Windows® XP and Windows Vista, brings up the Windows Security window; in MS-DOS® mode, restarts (reboots) the computer starts embedded system setup (during system start-up only) displays a boot device menu that allows the user to enter a device for a single boot (during system start-up only) as well as options to run hard-drive and system diagnostics Controls and Lights Power control front of chassis - push button Power light (within the power button) green light - Blinking green indicates a sleep mode; solid green indicates a power-on state. amber light - Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (see "Power Problems" on page 321). Hard-drive access light front panel - green Link light front panel - solid green light indicates network connection Link integrity light (on integrated network adapter) rear panel - green light for 10-Mb operation; orange light for 100Mb operation; yellow light for a 1000-Mb (1-Gb) operation Activity light (on integrated network rear panel - yellow blinking light adapter) Diagnostic lights front panel - four lights. See "Diagnostic Lights" on page 330. Standby power light AUX_PWR on the system board 196 Small Form Factor Computer