Acer Aspire 5251 Service Guide - Page 28

System Power Management ACPI mode Mech. Off (G3) Soft Off (G2/S5) Working (G0/S0) Sleeping State (S3) Sleeping State (S4) Specification All devices in the system are turned off completely. OS initiated shutdown. All devices in the system are turned off completely. Individual devices such as the CPU and hard disk may be power managed in this state. CPU set power down VGA Suspend PCMCIA Suspend Audio Power Down Hard Disk Power Down CD-ROM Power Down Super I/O Low Power mode Also called Hibernate state. System Saves all system states and data onto disk prior to power off the whole system. Power and Keyboard Controller Item Specification Controller Total number of keypads Windows logo key Hotkeys ENE KB926 99-/100-/103-key keyboard Yes See "Hot Keys" on page 13. Hard Disk Drive Interface Item Vendor/model name Seagate Capacity (MB) 160, 250, 320, 500 Bytes per sector Data heads Drive Format Disks Spindle speed (RPM) Performance Specifications Buffer size Interface DC Power Requirements Voltage tolerance HGST 160, 250, 320, 500 Specification Toshiba 160, 250, 320, 500 512 2-4 Western Digital 160, 250, 320, 500, 640 1-2 5400 8 MB SATA 5V ±5% Samsung 160, 250, 320 18 Chapter 1