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Acer Aspire X1920 Acer Aspire X1920 Desktop Service Guide - Page 51

Please follow, local regulations for disposal of used RTC batteries.

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2. Lift the mainboard from the chassis. 3. Remove the RTC battery. Note: The RTC battery has been highlighted with a yellow circle as shown above. Please follow local regulations for disposal of used RTC batteries. Aspire AX1920 Service Guide 43

Section	Page
Aspire AX1920 Desktop Computer Service Guide	1
Features and Specifications	9
System Features	9
Audio	10
I/O Ports and LED Indicators	10
Physical Specifications	11
Environmental Requirements	11
System Tour	12
Front View	12
Rear Panel	13
System Utilities	15
CMOS Setup Utility	15
Accessing the Setup Utility	16
Navigating through the Setup Utility	17
Setup Utility Menus	17
System Disassembly	31
Disassembly Requirements	31
Pre-disassembly Procedure	31
Disassembly Procedures	32
Removing the Side Panel	32
Removing the Front Bezel	33
Removing the Heat Sink Fan Assembly	34
Removing the Processor	35
Removing the HDD-ODD Bracket	36
Detaching the Front Bezel	41
Removing the Expansion Boards	42
Removing the Memory Modules	44
Removing the Power Supply Unit	44
Removing the Front I/O and Optional Card Reader Assemblies	47
Removing the Mainboard	50
System Architecture	77
Block Diagram	77
Mainboard Layout	78
Jumper Setting	79
Setting Jumper	80
Connecting Optional Devices	81
Connecting Case Components	83
Field Replaceable Unit (FRU) List	85
Exploded Diagram	86
AX1920 FRU List	87
Technical Specifications	112
Processor	112
Chipsets	113
BIOS	113
Memory	113
Hard Disk Drive	114
Optical Disc Drive	114
Card Reader (optional)	114
Gigabit Ethernet	115
Audio	115
Power Supply Unit	115
Power Management	115

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