Acer Aspire 5742 Service Guide - Page 32

Keyboard Item Type Total number of keypads Windows logo key Internal & external keyboard work simultaneously Features Specification AC7T-A10B 103-US/104-UK keys Yes Plug USB keyboard to the USB port directly: Yes • Phantom key auto detect • Overlay numeric keypad • Support independent pgdn/pgup/pgup/home/end keys • Support reverse T cursor keys • Factory configurable different languages by OEM customer Hard Disk Drive Interface Item Vendor & Model Name Western Digital WD1600BEVT22A23T0, Hitachi HTS545016B9A3 00, Toshiba MK1665GSX, Seagate ST9160314AS Capacity (GB) 160GB Bytes per sector Data heads 1, 2, 1, 2 Drive Format Disks 1 Spindle speed (RPM) Performance Specifications Buffer size Interface Fast data transfer rate Media data transfer rate 106Mbytes/s, 845Mbits/s, 1175Mbits/s, 1273.3Mbits/s DC Power Requirements Voltage tolerance Specification Western Digital WD2500BEVT22A23T0, Hitachi HTS545025B9A 300, Toshiba MK2565GSX, Seagate ST9250315AS Western Digital WD3200BEVT22A23T0, Hitachi HTS545032B9A3 00, Toshiba MK3265GSX, Seagate ST9320315AS 250GB 320GB 512 2, 2, 2, 2 2, 3, 2, 3 1 1, 2, 1, 2 5400RPM 8MB SATA 3.0Gbits/s 106Mbytes/s, 845Mbits/s, 1175Mbits/s, 1031.7Mbits/s 106Mbytes/s, 845Mbits/s, 1175Mbits/s, 1273.3Mbits/s 5V Western Digital WD5000BEVT22A0RT0, Hitachi HTS545050B9A3 00, Toshiba MK5065GSX, Seagate ST9500325AS 500GB 4, 4, 4, 4 2 106Mbytes/s, 845Mbits/s, 1175Mbits/s, 1031.7Mbits/s 22 Chapter 1