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Acer RL100 Acer Revo L100 Desktop Service Guide - Page 63

DOS-based BIOS Recovery, Delete, Advanced BIOS Features, First Boot Device, Save & Exit Setup

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DOS-based BIOS Recovery 1. Create a bootable USB storage device. (1). Connect the USB storage device to a USB port on the computer. (2). Copy the DOS Flash utility to the USB storage device. The utility should contain the "AFUDOS.exe", "Flash.bat", and "Flash.ROM" files. (3). Unplug the USB storage device. 2. Connect the USB storage device on the USB port on the system. 3. Power on the system. 4. As soon as the POST starts, press Delete to enter the Setup Utility. 5. Select Advanced BIOS Features and ensure that USB storage device is the First Boot Device. 6. Select Save & Exit Setup, then press Enter. 7. The system will now boot from the USB storage device and enter DOS mode. 8. Type "cd DOS", then press Enter. 9. Type "Flash.bat", then press Enter to start the BIOS flash utility. 10. The BIOS recovery begins and the Firmware Update Utility screen appears. Chapter 4 55

Section	Page
Table of Contents	7
System Tour	9
Features	9
System Components	11
Front Panel	11
Rear Panel	12
Internal Components	13
System LED Indicator	14
System Utilities	15
CMOS Setup Utility	15
Entering CMOS setup	16
Navigating Through the Setup Utility	16
Setup Utility Menus	17
Updating the BIOS	33
System Disassembly	35
Disassembly Requirements	35
Pre-disassembly Procedure	36
External Module Disassembly	37
Removing the USB RF Receiver	37
Removing the Card Reader Dummy Card	37
Removing the Wireless Touchpad	38
Removing the Dummy Stand	38
Main Unit Disassembly	39
Removing the Top Cover	40
Removing the Optical Drive	41
Removing the Heatsink	43
Removing the Fan	44
Removing the WLAN Module	45
Removing the I/O Board	46
Removing the Mainboard	47
Removing the Memory Module	48
Removing the TV Tuner Card	49
Removing the Battery	50
Removing the Hard Disk Drive	51
System Troubleshooting	53
Hardware Diagnostic Procedure	53
System Check Procedures	54
Power System Check	54
System External Inspection	54
System Internal Inspection	54
Checkpoints	55
Viewing BIOS checkpoints	55
Bootblock Initialization Code Checkpoints	55
Bootblock Recovery Code Checkpoints	56
POST Code Checkpoints	57
DIM Code Checkpoints	59
Beep Codes	60
BIOS Flashing and Recovery	61
Undetermined Problems	65
System Block Diagram and Board Layout	67
System Block Diagram	67
Mainboard Layout	68
Top view	68
Bottom view	69
FRU (Field Replaceable Unit) List	71
Exploded Diagram	72
FRU List	74

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