For almost all modern computers and hard drives, the only settings you should set is for the parameters of the disk to be detected automatically.
Back up hard drives are recommended because most hard drives give no symptoms before failing catastrophically. Once they do, it is almost impossible to retrieve data.
Ports, hard drives and other drives settings, boot order, memory and CPU settings.
Save the values of the installed drives CMOS setup values for use with the new drives.
Standard CMOS ConfigurationThe standard CMOS configuration screen includes settings for items such asDateTimeFloppy disk drive types for drives A: (first floppy disk drive) and B: (second floppy disk drive)Hard drives connected to the IDE interface
Typically you only need to change the CMOS for diagnostic purposes or when you change a component which is built into the motherboard. For instance, if your motherboard has onboard video or sound and you decide to put in a PCI or AGP card, then the CMOS is where you would disable the onboard functions. Another instance is when you add another hard drive and want it to be your boot drive. If both drives are set to cable select, you can override that setting in the CMOS. For the vast majority of people, CMOS is not something you should mess with unless you are in need of a very large paperweight. Hope this helps.
it contains a small amount of memory, or RAM, enough to configuration or setup information about the computer. This chip is responsible for remembering the current date and time, which hard drives and floppy drives are present, how the serial and parallel are configured and so forth. When the computer is first turned on, it looks to this CMOS chip to find out what hardware it should expect to find.
There are likely several CMOS settings that will heep a computer from booting. One of the most obvious is the password setting. If you make it require a password to boot the computer, it won't boot. Then there are the hard drive settings. If you disable the hard drive or the hard drive ports, then the computer won't boot. Then there are settings that should never be used for this, such as setting the memory and CPU clock to very unreasonable values.
The top four brands of 1TB Hard Drives are amongst others Western Digital hard drives, Seagate hard drives, Toshiba hard drives, and Hitachi hard drives.
Hard drives can seldom be used after degaussing because it destroys the drive's timing tracks, servo motors, and usually demagnetizes the permanent magnets of the spindle motor on sealed drives
Hard disk drives
How are Hard drives indentified and what are their functions
Computer storage devices include any hardware that stores data. The most common type of storage device is a hard drive. The computer's primary hard drive stores the operating system, applications, and files and folders for users of the computer.While the hard drive is the most known of all storage devices, other common types exist as well. Flash memory devices, such as USB drives and iPod nanos are popular ways to store data in a small, portable format. Other types of flash memory, such as compact flash and SD cards, are popular ways to store digital camera images.External hard drives which use USB and Firewire sockets are common too. These types of drives are often used for video and photo storage, backing up internal hard drives, or for simply adding extra storage. Tape drives are another type of storage device. They are an older technology and use reels of tape to store data. They are typically used for backing up data.Storage device hierarchy is comprised of the settings that determine the order that the storage devices are accessed. While that has traditionally been determined by the cable positions and jumpers on the drives, this is now a CMOS setting as well. The reason for that is because there are so many different types of storage devices, and any of them can be bootable. So without such a CMOS setting, there is no way for the bootloader and OS to know the order of the drives.