Definition of trim for English Language Learners. : 1  to cut (something) off something else : to remove (something) by cutting. : 2  to make (something) neat by cutting it. : 3  to make the size, amount, or extent of (something) smaller.
Check with your system vendor for the appropriate keystrokes or to see if you need to run a program from MS-DOS or Windows to configure your system. Because the settings you make in the BIOS setup program are stored in the nonvolatile RAM of the CMOS chip, the settings are often called CMOS settings. In the following section, we will review the typical setup process, looking at each screen of a typical Pentium-class system.
Mind you some motherboards WONT reset the bios access password upon a cmos clear. It is stored into EEPROM and wont be affected by cmos clear. Lately most performance oriented motherboards have non-crashing bios. These will detect a faulty configuration and reset the changes you last made, removing the need to open the case and mess with CMOS.