Asus M2N68 User Manual download pdf (Page 25)

ASUS M2N68 1-13

1.7 System memory

1.7.1 Overview

The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory

Modules (DIMM) sockets.

A DDR2 module has the same physical dimensions as a DDR DIMM but has a

240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched

differently to prevent installation on a DDR DIMM socket.

The gure illustrates the location of the DDR2 DIMM sockets:

Channel Sockets

Channel A DIMM_A1 and DIMM_A2

Channel B DIMM_B1 and DIMM_B2

M2N68

240-pin DDR2 DIMM Sockets

DIMM_B1

DIMM_A2

DIMM_B2

DIMM_A1

128 Pins

112 Pins

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 103 104

Motherboard 1
First Edition 2
July 2008 2
Contents 3
Safety information 7
About this guide 8
Typography 9
M2N68 specications summary 10
Product 13
1.2 Package contents 14
1.3 Special features 14
1.1 Welcome! 14
Green ASUS 16
ASUS CrashFree BIOS 3 16
ASUS EZ Flash 2 16
ASUS MyLogo2™ 16
AI NET2 16
ASUS Q-Fan 17
ASUS Express Gate 17
1.4 Before you proceed 18
1.5 Motherboard overview 19
1.5.2 Placement direction 20
1.5.3 Screw holes 20
1.6.1 Installing the CPU 21
Gold triangle 22
Small triangle 22
1.7 System memory 25
1.7.2 Memory congurations 26
Qualied Vendors Lists (QVL) 27
DDR2-1066 27
DDR2-800 27
DDR2-667 28
DDR2-533 28
1.7.3 Installing a DIMM 29
1.7.4 Removing a DIMM 29
1.8 Expansion slots 30
1.8.3 PCI slots 32
1.8.4 PCI Express x1 slot 32
1.8.5 PCI Express x16 slot 32
Normal Clear RTC 33
(Default) 33
1.10 Connectors 34
Orient the red markings on 36
IDE Connector 37
SPDIFOUT 39
Right Audio Channel 40
Left Audio Channel 40
Legacy AC’97-compliant 41
Azalia-compliant 41
ASUS M2N68 1-31 43
M2N68 System Panel Connector 43
BIOS setup 45
DOS environment 46
XP environment 46
Vista environment 46
ASUS M2N68 2-3 47
2-4 Chapter 2: BIOS setup 48
2.1.3 AFUDOS utility 49
Updating the BIOS le 50
2.1.5 ASUS Update utility 53
2-10 Chapter 2: BIOS setup 54
2.2 BIOS setup program 56
2.2.2 Menu bar 57
2.2.1 BIOS menu screen 57
2.2.3 Navigation keys 57
Select Screen 58
2.3 Main menu 59
2.3.4 Storage Conguration 60
ASUS M2N68 2-17 61
LBA/Large Mode [Auto] 62
PIO Mode [Auto] 62
DMA Mode [Auto] 62
2.3.7 System Information 63
2.4 Advanced menu 64
CPU Overclocking [Auto] 65
CPU Frequency (MHz) [200.0] 65
Overclock Options [Auto] 65
PCIE Overclocking [Auto] 65
PCI-Express Frequency [100] 65
2-22 Chapter 2: BIOS setup 66
2.4.2 CPU Conguration 67
NorthBridge Con fi guration 68
2.4.3 Chipset 68
Mem ory Confi gura tion 69
ECC Configur atio n 70
SouthBridge Con fi guration 71
Parallel Port Address [378] 72
Parallel Port Mode [Normal] 72
2.4.5 PCI PnP 73
2.4.6 USB Conguration 74
2.5 Power menu 75
2.5.4 APM Conguration 76
2.5.5 Hardware Monitor 77
2.6 Boot menu 78
ASUS M2N68 2-35 79
2.6.3 Security 80
Change User Password 81
Clear User Password 81
Password Check [Setup] 81
2.7 Tools menu 82
2.7.2 Express Gate 83
2.7.3 AI Net 2 83
2.8 Exit menu 84
Software 85
3.2 Support DVD information 86
3.2.2 Drivers menu 87
3.2.3 Utilities menu 88
3-5ASUS M2N68 89
3.2.4 Make Disk menu 90
3-7ASUS M2N68 91
3.2.5 Manual menu 92
3.2.7 Other information 93
Technical Support Form 94
Filelist 94
Browse this DVD 94
3.4 ASUS Express Gate 96
The First Screen 97
The Express Gate Environment 97
Using the Conguration Panel 99
Using the LaunchBar 100
3-17ASUS M2N68 101
Using the Photo Manager 103
Updating Express Gate 104
Repairing Express Gate 104

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Asus M2N68 User Manual Page 25

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