1. MCDST 70-271: Supporting Users and Troubleshooting a Microsoft Windows XP Operating System Chapter 9: Troubleshooting Power Management and I/O Devices

2. Guide to MCDST 70-2712 Objectives Understand and troubleshoot power management Understand and troubleshoot I/O devices

3. Guide to MCDST 70-2713 Power Management Advanced Configuration and Power Interface (ACPI) –Extends battery life by powering down unused devices –Can control the system using soft power switches –Makes PC cards able to be hot-swapped and notebooks to be hot-docked

4. Guide to MCDST 70-2714 Power Management (continued)

5. Guide to MCDST 70-2715 Power Options Applet is used to set system’s power-saving and battery management features Typical tabs found in dialog box –Power Schemes –Alarms (notebook only) –Power Meter (notebook only) –Advanced –Hibernate –UPS

6. Guide to MCDST 70-2716 Power Options (continued)

7. Guide to MCDST 70-2717 Power Options (continued)

8. Guide to MCDST 70-2718 Power Options (continued)

9. Guide to MCDST 70-2719 Standby Versus Hibernate Standby –Mode in which system goes into a lower power consumption mode –System can quickly return from Standby mode to fully operational mode in a few seconds Hibernation mode –State of system is saved to temporary data file on hard drive and computer is fully powered off

10. Guide to MCDST 70-27110 Troubleshooting Power Management Issues ACPI-related problems –The system will not shut down –Standby and Hibernate modes are not available –Devices malfunction after restoring from standby or hibernation –The system is unable to resume from standby or hibernation –The monitor will not power back on after being powered off by ACPI

11. Guide to MCDST 70-27111 Troubleshooting Power Management Issues (continued) To troubleshoot ACPI problems: –Verify that computer hardware supports ACPI –Verify that ACPI is enabled via the computer’s BIOS –If necessary, enable ACPI through the computer’s BIOS –If necessary, update the BIOS on the computer

12. Guide to MCDST 70-27112 Troubleshooting Power Management Issues (continued) To troubleshoot ACPI problems (continued): –Verify that all device drivers are updated –Verify that latest service pack for Windows XP is installed –Verify that you are not using the generic VGA driver –If all other troubleshooting steps fail, attempt an upgrade or clean/new installation of Windows XP

13. Guide to MCDST 70-27113 Managing I/O Devices I/O device –Any device that is used to send input into the computer or produce output from the computer –Can be connected to a computer through Serial, parallel USB IEEE 1394 (Firewire) IR/IrDA (infrared) RF/WiFi/wireless

14. Guide to MCDST 70-27114 Installing Device Drivers via Add Hardware Add Hardware applet –Used to install DVD players, CD players, tape devices, scanners, modems –Once a device is installed it can be configured and managed through Device Manager

15. Guide to MCDST 70-27115 The System Applet Tabs General tab –Displays operating system version, service pack level, registered username Computer Name tab –Used to join a domain/workgroup and change the computer name

16. Guide to MCDST 70-27116 The System Applet Tabs (continued)

17. Guide to MCDST 70-27117 The System Applet Tabs (continued) Hardware tab –Used to access the Add Hardware applet, enable and disable driver signing requirements Advanced tab –Used to access controls for Performance settings System restore tab –Controls the amount of disk space to use for system restoration

18. Guide to MCDST 70-27118 The System Applet Tabs (continued)

19. Guide to MCDST 70-27119 The System Applet Tabs (continued) Automatic Updates Tab –Manages how Windows Update downloadable packages are handled Remote tab –Enables, disables, and configures Remote Assistance and Remote Desktop

20. Guide to MCDST 70-27120 The System Applet Tabs (continued)

21. Guide to MCDST 70-27121 The System Applet Tabs (continued)

22. Guide to MCDST 70-27122 The System Applet Configuration Options Driver signing –Identifies drivers that have passed Microsoft Windows Hardware Quality Lab evaluation and tests Options presented by Driver Signing Options dialog box –Ignore –Warn –Block

23. Guide to MCDST 70-27123 Device Manager Used to verify that a device is working properly Lists all installed and known devices and indicates their status Yellow exclamation point or a stop sign over a device’s icon indicates problems or conflicts

24. Guide to MCDST 70-27124 Device Manager (continued) A device’s Properties dialog box will have at least two standard tabs: –General: access type, manufacturer, and location settings –Driver: change driver settings or install or upgrade device-related drivers Resources tab displays device’s resource settings

25. Guide to MCDST 70-27125 Device Manager (continued)

26. Guide to MCDST 70-27126 Device Manager (continued)

27. Guide to MCDST 70-27127 Device Manager (continued) Four main areas of hardware resource conflict –IRQ –I/O port –DMA (Direct Memory Access) –Memory

28. Guide to MCDST 70-27128 Hardware Profiles A collection of custom settings specific to a particular situation Most often used on portable computers for which hardware configurations change often Can be employed whenever there will be a hardware change between bootups

29. Guide to MCDST 70-27129 Troubleshooting I/O Devices Problem/solution combos that may assist in resolving problems –Out-of-date BIOS or firmware Update using tools from the vendor’s Web site –Damaged connection cable Replace the cable –Incorrect connection cable Use the correct cable

30. Guide to MCDST 70-27130 Troubleshooting I/O Devices (continued) Problem/solution combos that may assist in resolving problems –Wrong hub type Use the correct hub for the device connection type –Hub does not provide enough in-line power Disconnect other devices or add direct power to device

31. Guide to MCDST 70-27131 Summary Windows XP supports both ACPI and APM standards Power management must be an enabled feature of the installed hardware in order to function Power Options applet is used to manage power issues

32. Guide to MCDST 70-27132 Summary (continued) Troubleshooting ACPI issues involves verifying that device drivers are updated and the ACPI features of devices are turned Windows XP supports a broad range of I/O devices Proper driver management is a key issue in troubleshooting devices