HP Nc6400 HP Compaq nc6400 Notebook PC Maintenance and Service Guide - Page 39
Table 2-4, System Configuration Menu, Select, To do - fan always on
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Troubleshooting Table 2-4 System Configuration Menu (Continued) Select Device Configurations To do this ■ Swap the functions of the fn key and left ctrl key. ■ Enable/disable multiple standard pointing devices at startup. (To set the computer to support only a single, usually nonstandard, pointing device at startup, select Disable.) ■ Enable/disable USB legacy support. When enabled, USB legacy support allows the following: ❐ Use of a USB keyboard, mouse, and hub in Computer Setup even when a Windows operating system is not running. ❐ Startup from bootable USB devices, including a hard drive, diskette drive, or optical drive connected by a USB port to the computer or to an optional docking device (select models only). ■ Select a parallel port mode: EPP (Enhanced Parallel Port), standard, bidirectional, or ECP (Enhanced Capabilities Port). ■ Enable/disable BIOS DMA data transfers. ■ Enable/disable fan always on while connected to an AC outlet. ■ Enable/disable Intel® Data Execution Prevention or AMD® PSAE Execution Disable. When enabled, the processor can disable some virus code execution, which helps to improve computer security. ■ Enable/disable LAN Power Save. When enabled, saves power by turning off the LAN when not in use. ■ Enable/disable SATA Native Mode. ■ Enable/disable Dual Core CPU. ■ Enable/disable Secondary Battery Fast Charge. 2-8 Maintenance and Service Guide