Dell GX280DT User Guide - Page 9

capability port protocol LPT Port Address This option sets the address that the built-in parallel port uses. The settings are 378h (default), 278h, and 3BCh. PCI Slots Enables or disables the PCI slots. Serial Port #1 Auto, the default setting, automatically configures a connector to a particular designation (COM1 or COM3). Serial Port #2 Auto, the default setting, automatically configures a connector to a particular designation (COM1 or COM3). (This setting appears only if an optional serial port adapter is installed.) USB devices are detected and USB supported in the operating system when this option is set to On. USB Disable Enables or disables the front USB connectors. The default setting is On. To disable the front connectors, select Off. Performance Hyperthreading If your computer's processor supports hyper-threading, this option appears in the Options List. HDD Acoustic Mode l Quiet - the hard drive operates at its most quiet setting. l Performance - the hard drive operates at its maximum speed. l Bypass (default) your computer does not test or change the current acoustics mode setting. l Suggested the hard drive operates at the level suggested by the drive manufacturer. NOTE: Switching to performance mode may cause the drive to be noisier, but its performance is not affected. Changing the acoustics setting does not alter your hard drive image. This section displays available system