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Asus M2N68-AM PLUS ION SI User Guide - Page 33

Interrupt assignments

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1.8.3 Interrupt assignments IRQ Standard function 0 High precision event timer 1 Standard 101/102-Key or Microsoft Natural PS/2 keyboard 4 Communications Port (COM1)* 6 Standard floppy disk controller 8 High precision event timer 9 Microsoft ACPI-Compliant System 13 Numeric data processor 14 Main IDE Channel 10 NVIDIA nForce PCI System Management 20 NVIDIA Network Bus Enumerator 20 Standard Enhanced PCI to USB Host Controller 21 Standard Enhanced PCI to USB Host Controller 21 Standard Dual Channel PCI IDE Controller 22 Microsoft UAA Bus Driver for High Definition Audio 22 NVIDIA GeForce 7025 / NVIDIA nForce 630a 23 Standard OpenHCD USB Host Controller 23 Standard OpenHCD USB Host Controller * These IRQs are usually available for ISA or PCI devices. IRQ assignments for this motherboard PCI slot 1 PCI slot 2 PCI Express x1 slot PCI Express x16 slot A B C D - shared - - - shared - - - shared - - - shared - - When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable. ASUS M2N68-AM 1-21

Section	Page
Notices	6
Safety information	7
About this guide	8
M2N68-AM specifications summary	10
Product introduction	13
1.1 Welcome!	14
1.2 Package contents	14
1.3 Special features	14
1.3.1 Product highlights	14
1.3.2 Innovative ASUS features	16
1.4 Before you proceed	18
1.5 Motherboard overview	19
1.5.1 Motherboard layout	19
1.5.2 Placement direction	20
1.5.3 Screw holes	20
1.6 Central Processing Unit (CPU)	21
1.6.1 Installing the CPU	21
1.6.2 Installing the heatsink and fan	23
1.7 System memory	25
1.7.1 Overview	25
1.7.2 Memory configurations	26
1.7.3 Installing a DIMM	31
1.7.4 Removing a DIMM	31
1.8 Expansion slots	32
1.8.1 Installing an expansion card	32
1.8.2 Configuring an expansion card	32
1.8.3 Interrupt assignments	33
1.8.4 PCI slots	34
1.8.5 PCI Express x1 slot	34
1.8.6 PCI Express x16 slot	34
1.9 Jumper	35
1.10 Connectors	36
1.10.1 Rear panel connectors	36
1.10.2 Internal connectors	37
BIOS setup	45
2.1 Managing and updating your BIOS	46
2.1.1 Creating a bootable floppy disk	46
2.1.2 ASUS EZ Flash 2 utility	48
2.1.3 AFUDOS utility	49
2.1.4 ASUS CrashFree BIOS 3 utility	51
2.1.5 ASUS Update utility	53
2.2 BIOS setup program	56
2.2.1 BIOS menu screen	57
2.2.2 Menu bar	57
2.2.3 Navigation keys	58
2.2.4 Menu items	58
2.2.5 Sub-menu items	58
2.2.6 Configuration fields	58
2.2.7 Pop-up window	58
2.2.8 Scroll bar	58
2.2.9 General help	58
2.3 Main menu	59
2.3.1 System Time	59
2.3.2 System Date	59
2.3.3 Legacy Diskette A	59
2.3.4 IDE Configuration	60
2.3.5 Primary IDE Master/Slave	61
2.3.6 SATA1, SATA2, SATA3, and SATA4	63
2.3.7 System Information	64
2.4 Advanced menu	65
2.4.1 JumperFree Configuration	65
2.4.2 CPU Configuration	68
2.4.3 Chipset	69
2.4.4 Onboard Devices Configuration	73
2.4.5 PCI PnP	74
2.4.6 USB Configuration	75
2.5 Power menu	77
2.5.1 Suspend Mode	77
2.5.2 ACPI Version Features	77
2.5.3 ACPI APIC Support	77
2.5.4 APM Configuration	78
2.5.5 Hardware Monitor	79
2.6 Boot menu	80
2.6.1 Boot Device Priority	80
2.6.2 Boot Settings Configuration	81
2.6.3 Security	82
2.7 Tools menu	84
2.7.1 ASUS EZ Flash 2	84
2.7.2 AI NET 2	85
2.8 Exit menu	86
Software support	87
3.1 Installing an operating system	88
3.2 Support DVD information	88
3.2.1 Running the support DVD	88
3.2.2 Drivers menu	89
3.2.3 Utilities menu	90
3.2.4 Make Disk menu	92
3.2.5 Manual menu	93
3.2.6 ASUS Contact information	93