Acer Aspire 5741g Service Guide

							Chapter 111
Using the Keyboard
The keyboard has full-sized keys and an embedded numeric keypad, separate cursor, lock, Windows, function 
and special keys.
Lock Keys and embedded numeric keypad
The keyboard has two lock keys which you can toggle on and off.
Lock keyDescription
Caps Lock When Caps Lock is on, all alphabetic characters typed are in uppercase.
Scroll Lock When Scroll Lock is on, the contents of a text window scroll without moving the 
cursor.
Num Lock  When Num Lock is on, the embedded keypad is in numeric mode. 
						

							12Chapter 1
Windows Keys
The keyboard has two keys that perform Windows-specific functions.
KeyDescription
Windows key Pressed alone, this key has the same effect as clicking on the Windows Start button; 
it launches the Start menu. It can also be used with other keys to provide a variety of 
functions:
: Open or close the Start menu
 + : Display the desktop
 + : Open Windows Explore
 + : Search for a file or folder
 + : Cycle through Sidebar gadgets
 + : Lock your computer (if you are connected to a network domain), or 
switch users (if youre not connected to a network domain)
 + : Minimizes all windows
 + : Open the Run dialog box
 + : Cycle through programs on the taskbar
 + : Open Ease of Access Center
 + : Open Windows Mobility Center
 + : Display the System Properties dialog box
 + : Restore minimized windows to the desktop
 + : Cycle through programs on the taskbar by using Windows Flip 3-D
 + : Bring all gadgets to the front and select Windows Sidebar
 + 
 + : Search for computers (if you are on a network)
 + 
 + : Use the arrow keys to cycle through programs on the 
taskbar by using Windows Flip 3-D
Note: Depending on your edition of Windows 7, some shortcuts may not function as 
described.
Application 
key
 
This key has the same effect as clicking the right mouse button; it opens the 
applications context menu. 
						

							Chapter 113
Hot Keys
The computer employs hotkeys or key combinations to access most of the computer’s controls like screen 
brightness, volume output and the BIOS utility.
To activate hot keys, press and hold the  key before pressing the other key in the hotkey combination.
HotkeyIconFunctionDescription
 +  Communication key Enables / disables the computers
communication devices. (Communication 
devices may vary by configuration.)
 +  Sleep Puts the computer in Sleep mode.
 +  Display toggle Switches display output between the display 
screen, external monitor (if connected) and 
both.
 +  Display Off Turns the display screen backlight off to save 
power. Press any key to return.
 +  Touchpad toggle Turns the internal touchpad on and off.
 +  Speaker toggle Turns the speakers on and off.
 + < > Brightness up Increases the screen brightness.
 + < > Brightness down Decreases the screen brightness.
 + < >Volume up Increases the sound volume.
 + < >Volume down Decreases the sound volume.
 +  Play/Pause Play or pause a selected media file.
 +  Stop Stop playing the selected media file.
 +  Previous Return to the previous media file.
 +  Next Jump to the next media file.
 + < > + < >
 + < > + < > 
						

							14Chapter 1
Hardware Specifications and Configurations
Processor Specifications
CPU Fan True Value Table (Tj = 90)
• Throttling 50%: On=85°C, Off=72°C
• OS Shutdown: 104°C
• H/W Shutdown: 92°C
CPU Fan True Value Table (Tj = 105)
• Throttling 50%: On=100°C, Off=85°C
• OS Shutdown: 104°C
• H/W Shutdown: 92°C
ItemSpecification
CPU Intel Mobile Calpella
Graphics Integrated VGA for Arrandale 
CPU Package rPGA988A
Power 4M (Arrandale) L3 shared among all cores
On-die Cache 32KB L1 & 256K L2 for each core
ItemCPU 
SpeedCore
sBus 
SpeedCache 
SizePackageCore 
Vo l ta g eAcer P/N
Ci3330M 2.13 2 330 M 3 MB PGA988 35W KC.33001.DMP
Ci3350M 2.26 2 350 M 3 MB PGA988 35W KC.35001.DMP
Ci5430M 2.26 2 430 M 3 MB PGA988 35W KC.43001.DMP
Ci5520M 2.24 2 520 M 3 MB PGA988P 35W KC.52001.DMP
Ci5540M 2.53 2 540 M 3 MB PGA988 35W KC.54001.DMP
Ci7620M 2.66 2 620 M 4 MB PGA988P 35W KC.62001.DMP
CPU Temp (°C)
Core 0CPU Temp (°C)
Core 1Fan Speed (rpm)SPL Spec (dBA)
45 57 2300 28
52 64 3000 31
59 70 3100 34
65 78 3500 37
72 85 3900 40
CPU Temp (°C)
Core 0CPU Temp (°C)
Core 1Fan Speed (rpm)SPL Spec (dBA)
45 60 2300 28
55 70 3000 31
65 80 3100 34
75 90 3500 37
85 100 3900 40 
						

							Chapter 115
Fan Acoustic Specifications
NOTE: Tone:20~399Hz refer to slope of Ecma-074, 400~20K Hz < 7 Prominence ratio,No pattern occurred on 
Prominence vs. time diagram
BIOS
System Memory 
Operation 
ModeApplicationSPL 
dBALoudness (Sone)To n e  ( d B )
Fan off Windows Idle (HDD random 
seek)N/A • 20~3.99kHz less than or 
equal to: 0.5
• 4K~20kHz less than or 
equal to: 0.0357
Fan 1 Windows Idle 28 N/A 7
Fan 2 Windows Idle, HDD spinning 31 N/A 7
Fan 3 Play Movie (read from HDD), 
Play TV (TV tuner sku)34 N/A 7
Fan 4 3DMark06,Prime95, 
Prime95+Play TV(TV tuner 
sku), acer screen saver, HDD 
spinning37 N/A 7
Fan 5 TAT100% or 
Thermanow100%,3DMark06, 
at ambient 35C, HDD 
spinning40 N/A 7
ItemSpecification
BIOS vendor Insyde BIOS
BIOS ROM type Flash
Features • Flash ROM 4MB
• Support ISIPP
• Support Acer UI
• Support multi-boot
• Suspend to RAM (S3)/Disk (S4)
• Various hot-keys for system control
• Support SMBIOS 2.3, PCI2.2.
• Refer to Acer BIOS specification.
• DMI utility for BIOS serial number configurable/asset tag
• Support PXE
• Support Y2K solution
• Support WinFlash
• Wake on LAN from S3
• Wake on LAN form S4 in AC mode
• System information
ItemSpecification
Memory size 8GB maximum
DIMM socket number 2
Supports memory size per socket 4GB
Supports DIMM type 204-pin +1.5V DDRIII 
Supports DIMM Speed 800/1066 MHz 
						

							16Chapter 1
Memory Combinations 
NOTE: Above table lists some system memory configurations. You may combine DIMMs with various 
capacities to form other combinations. In the above table, the configuration of slot 1 and slot 2 could be 
reversed.
Onboard LAN Supports DIMM voltage 1.5V
Slot 1Slot 2Total Memory
0MB 1024MB 1024MB
0MB 2048MB 2048MB
0MB 4096MB 4096MB
1024MB 0MB 1024MB
1024MB 1024MB 2048MB
1024MB 2048MB 3072MB
2048MB 0MB 2048MB
2048MB 1024MB 3072MB
2048MB 2048MB 4096MB
2048MB 4096MB 6144MB
4096MB 4096MB 8192MB
ItemSpecification
Manufacturer Broadcom 57780KMLG  for GIGA LAN
• Integrated 10/100/10000BASE-T transceiver
• Automatic MDI crossover function
• PCIe V1.1 compliant
• 10/100/10000BASE-T full -duplex/half -duplex MAC
• Receive side scaling(RSS) for multicore processors
• Complies with IEEE 802.3, 802.3u, 802.3ab, and 
802.1p
• Wake on LAN (WOL) support meeting the ACPI 
requirements
• Statistics for SNMP MIB II, Ethernet-like MIB, and 
Ethernet MIB (IEEE 802.3z, Clause 30)
• Self-boot feature, utilizing smaller EEPROM size with 
ability to use on-chip memory
• Supports iSCSI boott
• PCI Express CLKREQ support
• Integrated switching regulator for improved power 
consumption
• IPv4 and IPv6 large send offload and checksum 
offload(LSO/TCO) 
ItemSpecification 
						

							Chapter 117
Hard Disk Drive Interface
Super-Multi Drive Module
ItemSpecification
Vendor & Model 
Name
Seagate HGST Toshiba Western Digital
Capacity (MB) 160, 250, 320, 
500160, 250, 
320, 500160, 250, 
320, 500160, 250, 320, 
500, 640
Bytes per sector 512
Data heads 2-4
Drive Format
Disks 1-2
Spindle speed 
(RPM)5400
Performance Specifications
Buffer size  8 MB
Interface SATA
DC Power Requirements
Voltage 
tolerance5V ±5% 5V ±5% 5V ±5% 5V ±5%
ItemSpecification
Vendor & model 
nameHLDS GT20N Sony AD7580S
Performance 
SpecificationWith CD Diskette With DVD Diskette With CD Diskette With DVD Diskette
Transfer rate (MB/
sec)Sustained:
3,600 KB/s (24x) 
max.Sustained:
11.08 Mbytes/s 
(8x) max.Sustained:
1,571 (typical)Sustained:
10,993 (typical)
Buffer Memory 2 MB
Interface SATA 
						

							18Chapter 1
Audio Interface
Power and Keyboard Controller Applicable disc 
formatsDVD-ROM:
4.7GB   (Single Layer)
8.5GB   (Dual Layer)
DVD-R:
3.95GB (Ver. 1.0: read only)
4.7GB (Ver. 2.0 for Authoring: read only)
4.7GB (Ver. 2.1 for General: read & write)
(DL) 8.5GB   (Ver. 3.0)
DVD-RW:
4.7GB   (Ver. 1.2/ Rev 1.0, 2.0, 3.0)
DVD-RAM: 1.46GB/side, 4.7GB/side 
(Ver. 2.2)
DVD+R: 4.7GB (Ver. 1.3)
(DL) 8.5GB   (Ver. 1.1)
DVD+RW:
4.7GB (Vol.1 Ver.1.3)
CD-ROM Mode-1 data disc
CD-ROM Mode-2 data disc 
CD-ROM XA, CD-I, Photo-CD Multi-
Session, Video CD
CD-Audio Disc
Mixed mode CD-ROM disc (data and 
audio)
CD-Extra
CD-Text
CD-R (Conforming to “Orange Book Part 
2”: read & write)
CD-RW (Conforming to “Orange Book 
Part 3”: read & write)DVD Read:
DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-
18), DVD-Video, DVD-Audio, SACD (Hybrid),
UDF DVD, DVD-R, DVD-R DL, DVD-R 3.95 
GB, DVD-R Authoring, DVD-R Multi-Border,
DVD-RW, DVD+R, DVD+R DL, DVD+R 
Multi-Session, DVD+RW, DVD-RAM V1.0, 
DVDRAM
V2.0 & 2.1 &2.2.
CD Read:
CD-DA, CD-ROM Mode-1, CD-ROM/XA 
Mode-2 Form-1 and Mode-2 Form-2, CD-i, 
CD-i
Bridge, Video-CD (MPEG-1), Karaoke CD, 
Photo-CD, Enhanced CD, CD Plus, CD 
Extra, itrax
CD, CD-Text, UDF CD, CD-R, and CD-RW
DVD Write:
DVD Data & Video
CD Read:
CD-DA, CD-ROM Mode-1, CD-ROM/XA 
Mode-2 Form-1 and Mode-2 Form-2, CD-i, 
Video-
CD, CD-Text
Loading mechanism Drawer (Solenoid Open)
Tact SW (Open)
Emergency Release (draw open hole)
Power Requirement
Input Voltage DC 5 V +/- 5%
ItemSpecification
Chipset Realtek ALC272-X
Features • High Definition Audio Codec
• Single Analogue MIC 
• 2.0 Watt speaker/5cc chamber/speaker size 18 phi, x2 
• Headphone-out w/o SPDIF-out
ItemSpecification
Controller ENE KB926 
Total number of keypads 99-/100-/103-key keyboard
Windows logo key Yes
Hotkeys See “Hot Keys” on page 13.
ItemSpecification 
						

							Chapter 119
Battery
ItemSpecification
6 Cell
Vendor & model name SANYO/SONY/PANASONIC/SAMSUNG/SIMPLO AS2009A
Battery Type Li-ion
Pack capacity  4400 mAh
Normal Voltage 2.2 Ah
Package configuration 3S2P 
						

							20Chapter 1
LCD 15.6”
Card Reader
ItemSpecification
Vendor/model name AUO/CPT/CMO/Samsung/LCD/INL
Screen Diagonal (mm) 15.6 inches
Display resolution (pixels) 1366 x 768 WXGA Clare
Pixel Pitch 0.204 x 0.204
Display Mode Normal
Typical White Luminance (cd/m
2) 
(also called Brightness)220
Contrast Ratio 500 typical
Response Time (Optical Rise 
Time/Fall Time) msec8
Luminance Uniformity 1.25 max
Electrical Interface LVDS
Support Color 262K
Viewing Angle (up/down/right/
left)15/35/45/45
Temperature Range (°C)
Operating
Storage (shipping)0 to +50
-20 to +60
ItemSpecification
Part Name RealTek RT5160
Package 5-in-1 card reader
General Features • PCI-E interface
• Push-push type
•Dummy card