2500 SX/25 (250-1610) Installing Additional Drives Faxback Doc. # 1129 Note: This CPU provides power to the floppy with a 4 pin mini power connector. Previous units provided power through the floppy drive cable. The 1.44Meg drive (25-4053) is not a direct replacement for the original floppy. The correct drive replacement is available from Business Products Parts. The 25-4053 can still be added to this unit if the 25-1076 adapter is used and the drive is installed in a 5 1/4" bay. Three storage devices can be installed in the drive bays. The two upper bays support low-profile (maximum height, 1") 3 1/2" devices. The lower bay supports a half-height 5 1/4" device or a standard 3 1/2" device. * Install internal hard drives in the 3 1/2" bay, the 5 1/4" drive bay, or the expansion adapter area. The SmartDrive (IDE hard drive) connector in your computer supports up to two internal hard drives. * Install diskette drives in the 3 1/2" or 5 1/4" drive bays. * To removed the 3 1/2" panel, press down on the center tab from inside the cover. This panel is not replaceable. * To remove the 5 1/4" panel, press down on the panel from outside the cover. This panel is not replaceable. If you are installing a hard drive that is not a SmartDrive (IDE), you will need to install an expansion adapter for the drive. Refer to the drive and adapter documentation for instructions. Some installations require additional mounting hardware. For example, you might need to purchase a 3 1/2" to 5 1/4" disk drive adapter and L-bracket to install some 3 1/2" drives in the 5 1/4" bay. Mounting hardware is available at your computer dealer. INSTALLING A 3 1/2" DISKETTE DRIVE Use the following procedure to install a 3 1/2" diskette drive: 1. Open the computer to gain access to the 3 1/2" drive bay. 2. Select the appropriate mounting holes on the diskette drive. 3. Slide the drive into the 3 1/2" drive bay. With the drive resting on the center rail, align the mounting holes on the side of the drive with the two mounting holes on the side of the carriage. 4. Mount the diskette drive in the bay by installing the four screws as illustrated. Remove the plastic card from the 5 1/4" bay. you must insert the screwdriver through the hole in the 5 1/4" bay to install one of the bottom screws. 5. Loosen the diskette drive cable connector from the cable attached to the factory-installed diskette drive. Pin 1 of the connector is labeled. Align Pin 1 of the cable connector with Pin 1 of the drive connector on the back of the diskette drive. Then, attach the cable connector to the connector. 6. Run the setup utility to complete the installation. Refer to "SETUPSX" in the "Utilities" section for more information. INSTALLING A 3 1/2" HARD DRIVE Use the following procedure to install a 3 1/2" hard drive. Refer to the drive installation guide for instructions on adjusting drive components, connecting the drive cable, and selecting mounting holes on the drive. You will also need information from the drive installation guide to run the setup utility after installing the drive. Record this information on the system worksheet at the end of this manual. 1. Open the computer to gain access to the 3 1/2" drive bay. 2. Select the appropriate mounting holes on the drive. 3. Slide the drive into the 3 1/2" drive bay. With the drive resting on the center rail, align the mounting holes on the side of the drive with the two mounting holes on the side of the carriage. 4. Mount the drive in the bay by installing the screws as illustrated. 5. Attach the remaining cable connector to the SmartDrive connector on the main logic board. Attach a power cable from the computer power supply. Refer to "Completing the SmartDrive Installation" for additional instructions. 6. Run the setup utility to update your system configuration by identifying the drive. Use the arrow keys to move the cursor into the hard disk drive area and press the spacebar. The setup configuration screen displays several drive descriptions. Select the drive description that matches the information you recorded on the worksheet. If you do not find an exact match, either choose "Any (non-standard hard disk)" and enter the drive parameters or choose "AUTO" and the computer will automatically determine the hard disk parameters. Efer to "SETUPSX" in the "Utilities" section for more information. CAUTION: After installing the hard drive, it might be necessary to park the drive heads before opening the carriage or moving the computer. Refer to the installation guide for this information. INSTALLING A 5 1/4" DRIVE Use the following procedure to install a 5 1/4" drive. Refer to the drive documentation for further instructions. NOTE: If you have a problem with the power connection not plugging in all the way you will need to add a power extender cable (Cat.#278-767). 1. Open the computer to gain access to the 5 1/4" drive bay in the carriage. 2. If you are installing a diskette drive, a tape drive, or a CD-ROM drive, remove the plastic card from the bottom of the 5 1/4" bay and remove the panel from the computer cover. 3. Select the appropriate mounting holes for the drive. Refer to your drive installation guide. 4. Slide the drive into the bay. Align the appropriate mounting holes in the drive with the three mounting holes on the bottom of the carriage. 5. Mount the drive in the bottom of the carriage, using the screws included in your drive kit. 6. Connect the drive cable to the appropriate connector on the main logic board. Connect one of the power cables from the computer power supply to the power connector on the drive. INSTALLING A 3 1/2" DRIVE IN THE 5 1/4" BAY Refer to the drive installation guide for further instructions. 1. Open the computer to gain access to the 5 1/4" bay. 2. Install the drive in a 3 1/2" to 5 1/4" internal disk drive adapter (25-1076). Refer to the Internal Disk Drive Adapter installation guide for more information. Attach the drive cable to the device as directed. 3. Align the holes on the wider side of the L-bracket with the bottom set of holes on the drive adapter. Install the screws as illustrated: 4. Insert the drive, adapter, and L-bracket into the 5 1/4" bay. Use the three screws from the installation kit to mount the device as illustrated: 5. Attach the remaining cable connector to the appropriate connector on the main logic board. Connect one of the power cables from the computer power supply to the power connector on the drive. COMPLETING THE SMARTDRIVE INSTALLATION A SmartDrive (IDE hard disk drive) is a hard disk drive with a built-in controller. Because a hard disk controller usually occupies an expansion slot, using a SmartDrive frees an expansion slot for some other use and saves you the cost of a separate controller, providing maximum performance and guaranteed compatibility at a lower cost than other drive/controller combinations. To install a SmartDrive: * Install the drive as described in "Installing a 3 1/2" Hard Drive". To install a 3 1/2" SmartDrive in the 5 1/4" bay, use the mounting holes on the bottom of the drive. Refer to "Installing a 3 1/2" Drive in the 5 1/4" Bay" for instructions. * Connect a SmartDrive data/controller cable between the SmartDrive and the 40-pin SmartDrive connector on the main logic board. The data/controller cable supports up to two SmartDrives. The SmartDrive cable and connector are keyed to ensure that they connect properly. * Connect a power cable from the power supply to the power connector on the hard drive. To connect an unkeyed IDE cable, align Pin 1 of the cable connector with Pin 1 of the main logic board connector and then press the cable connector onto the main logic board connector. Some cables have a stripe on one side, This stripe indicates Pin 1 one the cable connector. On the main logic board, a dot number 1 is printed next to Pin 1 of the main logic board connector. After installing a SmartDrive (or any hard disk drive), run the setup utility to update your system configuration.