Dell PowerEdge R905 Hardware Owner's Manual (PDF) - Page 171

Jumpers and Connectors This section provides specific information about the system jumpers. It also provides some basic information on jumpers and switches and describes the connectors on the various boards in the system. System Board Jumpers Figure 6-1 shows the location of the configuration jumpers on the system board. Table 6-1 lists the jumper settings. Table 6-1. System Board Jumper Settings Jumper Setting Description PWRD_EN (default) The password feature is enabled (pins 2-4) The password feature is disabled (pins 4-6) NVRAM_CLR (default) The configuration settings are retained at system boot (pins 3-5) The configuration settings are cleared at the next system boot (pins 1-3) Disabling a Forgotten Password The system's software security features include a system password and a setup password, which are discussed in detail in "Using the System Setup Program" on page 43. The password jumper enables these password features or disables them and clears any password(s) currently in use. CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. Jumpers and Connectors 171