Acer Aspire 7420 Service Guide

Chapter 131
  
  
NOTE: Above table lists some system memory configurations. You may combine DIMMs with various 
capacities to form other combinations. On above table, the configuration of slot 1 and slot 2 could be 
reversed. System Memory
ItemSpecification
Memory controller Built-in 
Memory size 0MB (no on-board memory)
DIMM socket number 2 sockets
Supports memory size per socket 2048MB
Supports maximum memory size 4G for 64bit OS(with two 2GB SODIMM)
Supports DIMM type DDR 2 Synchronous DRAM
Supports...

32Chapter 1
  Supports LAN protocol 10/100/1000 Mbps
LAN connector type RJ45
LAN connector location Left side
Features Integrated 10/100 BASE-T transceiver
Wake on LAN support compliant with ACPI 2.0
PCI v2.2
Bluetooth Interface
ItemSpecification
Chipset Foxconn T60H928.01
Data throughput 723 bps (full speed data rate)
Protocol Bluetooth 1.1 (Upgradeable to Bluetooth 1.2 when SIG 
specification is ratified).
Interface USB 1.1
Connector type USB
Wireless Module 802.11b/g
ItemSpecification
Chipset Acer...

Chapter 133
I n t e r f a c e S ATA S ATA S ATA S ATA
Max. media 
transfer rate 
(disk-buffer, 
Mbytes/s)540 540 540 540
Data transfer 
rate 
(host~buffer, 
Mbytes/s)100 MB/Sec.
Ultra DMA mode-5150 MB/Sec.
Ultra DMA mode-5150 MB/Sec.
Ultra DMA mode-5150 MB/Sec.
Ultra DMA mode-5
DC Power Requirements
Voltage 
tolerance5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5%
Combo Drive module
ItemSpecification
Vendor & model name SONY COMBO 12.7mm Tray 24X CRX880A
Performance Specification With CD Diskette...

34Chapter 1
Super-Multi Drive module
ItemSpecification
Vendor & model name HLDS Super-Multi Drive GSA-T20N, PHILIPS Super-Multi Drive DS-
8A1P, PIONEER Super-Multi Drive DVR-K17RS
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained:
Max 3.6Mbytes/secSustained:
Max 10.08Mbytes/sec
Buffer Memory 2MB
I n t e r f a c e PATA
Applicable disc format Applicable disc format
CD: CD-DA, CD-ROM, CD-ROM XA, PhotoCD (multi-session), Video 
CD, Cd-Extra (CD+), CD-text
DVD:...

Chapter 135
 Resolution 18 bit stereo full duplex
Compatibility HD audio Interface; S/PDIF output for PCM or AC-3 
content
Sampling rate 1Hz resolution VSR (Variable Sampling Rate)
Internal microphone Yes
Internal speaker / Quantity Yes/2 (1.5W speakers)
Video Interface
ItemSpecification
Chipset ATI  M66/M74/M76 MXM
Package Daughter Board
Interface PCIE 
Supports ZV (Zoomed Video) port Yes
Video Memory
ItemSpecification
Chipset ATI  M66/M74/M76 MXM
Memory size up to 256MB
Interface GDDR2...

36Chapter 1
 VGA ATI  M66/M74/M76 MXM
LAN Realtek 8100SBL/CL
USB 2.0 Intel ICH8M
Super I/O controller N/A
MODEM ALC 883
Bluetooth Built-in ATI SB460
Wireless 802.11 b+g Built-in ATI SB460
PCMCIA/ 5 in 1 Card Reader ENE CB714/1410
Audio Codec Realtek ALC883
Keyboard
ItemSpecification
Keyboard controller NS PC97541V
Total number of keypads 105-/106-key
Windows logo key Yes
Internal & external keyboard work 
simultaneouslyPlug USB keyboard to the USB port directly: Yes
Battery
ItemSpecification
Vendor &...

Chapter 137
LCD 17” inch
ItemSpecification
Vendor & model nameB170PW03 (Glare)
LTN170X2-L02-1-1 (Glare)
LP171WP4-TLB1 (Glare)B170PW03 (Non-Glare)
LTN170X2-L02-1 (Non-Glare)
LP171WP4-TLA1 (Non-Glare)
Screen Diagonal (mm) 17 inches 17 inches
Active Area (mm) 331.1 x 207.0 331.2x207
Display resolution (pixels)1280 x 800 WXGA 1280x800 WXGA
Pixel Pitch 0.2588  0.2588 0.25875x0.25875
Pixel Arrangement R.G.B. Vertical Stripe R.G.B. Vertical Stripe
Display Mode Normally White Normally White
Typical White...

38Chapter 1
AC Adaptor
ItemSpecification
Input rating 90V AC to 264V AC, 47Hz to 63Hz
Maximum input AC current 1.7A
Inrush current  220A@115VAC
220A@230VAC
Efficiency 82% min. @115VAC input full load
System Power Management
ACPI modePower Management
Mech. Off (G3) All devices in the system are turned off completely.
Soft Off (G2/S5) OS initiated shutdown. All devices in the system are turned 
off completely.
Working (G0/S0) Individual devices such as the CPU and hard disc may be 
power managed in this...

Chapter 241
BIOS Setup Utility
The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/
Output System).
Your computer is already properly configured and optimized, and you do not need to run this utility. However, if 
you encounter configuration problems, you may need to run Setup.  Please also refer to Chapter 4 
Troubleshooting when problem arises.
To activate the BIOS Utility, press F2 during POST (when “Press  to enter Setup” message is prompted 
on the...

42Chapter 2
Navigating the BIOS Utility
There are six menu options: Information, Main, Advanced, Security, Boot, and Exit.
Follow these instructions:
To choose a menu, use the left and right arrow keys.
To choose an item, use the up and down arrow keys.
To change the value of a parameter, press F5 or F6.
A plus sign (+) indicates the item has sub-items. Press Enter to expand this item.
Press Esc while you are in any of the menu options to go to the Exit menu.
In any menu, you can load default...