Acer Aspire E1-521 Notebook Service Guide
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... features or options • Restore a BIOS when it becomes corrupted. See Creating a USB Flash Crisis Disk on page 2-28. • Do not install memory related drivers (XMS, EMS, DPMI) when BIOS Flash is used • Use an AC adapter power supply when running BIOS Flash utility.
... features or options • Restore a BIOS when it becomes corrupted. See Creating a USB Flash Crisis Disk on page 2-28. • Do not install memory related drivers (XMS, EMS, DPMI) when BIOS Flash is used • Use an AC adapter power supply when running BIOS Flash utility.
Acer Aspire E1-521 Notebook Service Guide
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.... If the display is too dim at the highest brightness setting, the LCD is faulty and should be replaced. Remove and reinstall the video driver. 6. Check the Device Manager to determine that the computer is not normal, right-click on battery alone as this may reduce display brightness. ..., perform the following: 1. Run the Windows Memory Diagnostic from the operating system DVD and follow the on page 5-4). 13. Roll back the video driver to the User Manual for instructions on the screen), the LCD is faulty and should be replaced. 3. Remove the drives (refer to its highest...
.... If the display is too dim at the highest brightness setting, the LCD is faulty and should be replaced. Remove and reinstall the video driver. 6. Check the Device Manager to determine that the computer is not normal, right-click on battery alone as this may reduce display brightness. ..., perform the following: 1. Run the Windows Memory Diagnostic from the operating system DVD and follow the on page 5-4). 13. Roll back the video driver to the User Manual for instructions on the screen), the LCD is faulty and should be replaced. 3. Remove the drives (refer to its highest...
Acer Aspire E1-521 Notebook Service Guide
Page 90
Remove and reinstall the audio driver. 5. Navigate to M/B Check Logic lower OK Swap M/B NG Swap Logic lower Figure 4:6. Check the Device Manager to determine that other audio applications are set mid ... cable NG OK Re-assemble the SPK cable to Start > Control Panel > System and Maintenance > System > Device Manager. If updated recently, roll back the audio driver to 50 and not muted. 4-9 Troubleshooting
Remove and reinstall the audio driver. 5. Navigate to M/B Check Logic lower OK Swap M/B NG Swap Logic lower Figure 4:6. Check the Device Manager to determine that other audio applications are set mid ... cable NG OK Re-assemble the SPK cable to Start > Control Panel > System and Maintenance > System > Device Manager. If updated recently, roll back the audio driver to 50 and not muted. 4-9 Troubleshooting