3.8 Examples of a Beowulf Node

		3.10.5 Installing the Other Components

		If your PC can boot and run setup, you're almost done. Now you can begin to install all of the other components. You should begin to mount the drives in the case if you have not already done so.

		IDE Hard disk installation

		Mechanical - This is similar to the floppy installation above, with the exception that the drive will not be visible from outside of the case.

		Electrical

		Most motherboard BIOS's today can read the IDE drive's specifications and automatically configure them. If it does not, you will have to get the drive's parameters (usually written on the drive) which include number of cylinders, number of heads, and number of sectors per track, and enter them in the drive parameter table in the CMOS setup.

		A ribbon cable and power connector attach to each hard disk, the power cable has 4 wires in it and is keyed so it cannot be installed wrong.

		Read the documentation that came with the hard disk to see how the jumpers are set, if you are installing one disk and no other IDE device, the jumpers can usually be removed. If you are installing more than one disk, decide which disk will be booted. The boot disk should go on the primary hard disk controller. Move jumper(s) on the hard disk to make it a MASTER or PRIMARY. Many newer hard disks will use pins labeled MA, SL, and CS - you will jumper the MA pins. The second hard disk or CD-ROM will be configured as a SLAVE or SECONDARY drive. You will jumper the SL pins on this device. Please use your drive's manual, or call the manufacturer's 800 number for proper jumper settings. If the CD-ROM drive will be alone on its own controller, follow the manufacturers directions, but it will usually be OK to jumper it as a slave. Once jumpered properly, the drives can be connected with the 18-inch 40-pin ribbon cables and powered up. Pin 1 usually goes next to the power connector.

		SCSI hard disk installation

		Mechanical - see the floppy installation above, with the exception that the drive will not be visible from outside of the case.

		Electrical

		Unless the motherboard has the SCSI controller built in, the BIOS will not read a SCSI drive and the drive table should be setup with "not installed".