Peripherals and Options73Hard Disk UpgradesLarger capacity hard disks are available as anupgrade. The computer uses a 2.5-inch Enhanced-IDE hard disk. The following table shows thecurrently supported hard disks. Consult yourdealer for additional hard disks that may beavailable.Vendor Model CapacityCylinders Heads SectorsIBM DTCA232403.0 GB 6304 16 63IBM DTCA240904.0 GB 7944 16 63Follow these steps to install a replacement harddisk:1. Power down yourcomputer. If you areusing the AC adapter,disconnect it from thepower outlet.2. Close the display lid.3. Turn the computerover to access thebase.