The Dell™ OptiPlex™ GX270 System User's Guide provides information about your computer, including technical specifications, cleaning your computer, advanced features, LegacySelect technology controls, manageability, security protection, password protection, system setup program, booting to a USB device, jumper settings, power button, hyper-threading, power management, ultra small desktop overview, small desktop overview, mini tower overview, computer and software problems, advanced troubleshooting, getting help, and other information.