Your PC already has one hard disk drive installed in the back shelf. You can install another hard disk drive in the bottom internal shelf, beneath the existing hard disk drive. Your PC has a 3.5-inch flexible disk drive and a CD-ROM drive installed in two front-access device shelves. Two more front-access device shelves are available to install flexible disk drives, CD-ROM drives, or tape drives. Your PC has the following cables and connectors on the system board which may be used by mass storage devices: • An Enhanced IDE (Integrated Drive Electronics) hard disk drive cable. This supports up to two IDE hard disk drives, one of which is already connected. On the system board, this cable’s connector is labeled “Primary IDE”. • A second Enhanced IDE drive cable with two connectors. If you install a CD-ROM drive, or a third hard disk drive, or both, connect it or them to this cable. On the system board, this cable’s connector is labeled “Secondary IDE”. • A flexible disk drive cable. This supports up to two flexible disk drives, one of which is already connected. NOTE You can install a non-IDE mass storage device, but this requires an accessory board and driver software. Contact your authorized reseller for information. 2 How to Install Accessories In Your PC Installing Mass Storage Devices Internal Connectors If you add a flexible disk drive, hard disk drive, CD-ROM drive, or tape drive, you need to connect it to power and data cables. The data cables are shown below: Connectors for Connectors for Primary IDE Hard Disk Drives For Bootable Hard Disk Drive Connectors for 3.5-inch Connector for Secondary IDE Drive Flexible Disk Drive or 5.25-inch for CD-ROM or Hard Tape Drive Flexible Disk Disk drive Drive Which Connectors to There are two different cables for IDE drives: Use • The first cable is attached to the connector marked “Primary IDE” on the system board connector, and has two connectors on the cable. The first connector must be connected to the bootable (master) hard disk drive. The second (or slave) connector is for a secondary hard disk drive. • The second cable is attached to the connector marked “Secondary IDE” on the system board, and has two connectors on the cable. The connectors can be used for either CD-ROM drives or hard disk drives. NOTE If you install a hard disk drive and connect it to the same cable to which the CD-ROM drive is connected, the hard disk drive must be connected to the middle connector, not the end connector. If you have a CD-ROM drive currently connected to the middle connector, you must reconnect the CD-ROM drive to the end connector of the cable, and then attach the new hard disk drive to the middle connector. 20 English 21 2 How to Install Accessories In Your PC Installing Mass Storage Devices The following table explains which connectors you should use when you install additional devices. NOTE When connecting hard disk drives, note that if the drives are connected to the same data cable, and the drives operate in different modes (or speeds), the slower speed will be used. To avoid possible degradation of disk performance, it is recommended that, whenever possible, hard disk drives are placed on different cables. There are two different types of connectors—these are shown below. Some of the power connectors will already be connected to devices. If you install a device that requires a different connector, the connector converter should be supplied with the device. Configuration Connections to Data Cables 1 Hard Disk Drive 1. Bootable hard disk drive: First connector, Primary IDE Cable 2 Hard Disk Drives 1. Bootable hard disk drive: 2. Second hard disk drive: First connector, Primary IDE Cable Second connector, Primary IDE Cable 3 Hard Disk Drives 1. Bootable hard disk drive: 2. Second hard disk drive: 3. Third hard disk drive: First connector, Primary IDE Cable Second connector, Primary IDE Cable Secondary IDE Drive Cable Connector 4 Hard Disk Drives 1. Bootable hard disk drive: 2. Second hard disk drive: 3. Third hard disk drive: 4. Fourth hard disk drive: First connector, Primary IDE Cable Second connector, Primary IDE CableCDSecondary IDE Drive Cable Connector Secondary IDE Drive Cable Connector Power Cables for Hard Disk Drives, Tape Drives, and CD-ROM Drives Power Cable for 3.5- inch Flexible Disk Drive 2 How to Install Accessories In Your PC Installing Mass Storage Devices Installing an Additional Hard Disk Drive Refer to the drive’s manuals to see if you must set jumpers or if there is a special installation procedure to follow. If your new hard disk drive already has a mounting tray attached, you must remove it before you can install the drive in your PC. CAUTION Make sure that you back up your files before you install a hard disk drive. Refer to your operating system documentation for information on how to do this. 1 Switch off the display and computer, and disconnect the power supply cables and any telecommunications cables. 2 Remove the computer’s cover (see pag...