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Onboard Devices Conﬁguration

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DRAM ECC Enable [Disabled] [Disabled] Disables this function. [Enabled] Allows hardware to report and correct memory errors automatically, maintaining system integrity. DRAM SCRUB REDIRECT [Disabled] [Disabled] Disables this function. [Enabled] Allows the system to correct the DRAM ECC errors immediately when they occur. 4-Bit ECC Mode [Disabled] [Disabled] Disables the CHIPKILL ECC mode. [Enabled] Enables the CHIPKILL ECC mode. DRAM BG Scrub [Disabled] Disables or sets the DRAM BG Scrub. Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us] [10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms] Data Cache BG Scrub [Disabled] Disables or sets the Data Cache BG Scrub. This item allows the L1 Data Cache RAM to be corrected when idle. Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us] [10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms] L2/L3 Cache BG Scrub [Disabled] Disables or sets the L2/L3 Cache BG Scrub. This item allows the L2/L3 Data Cache RAM to be corrected when idle. Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us] [10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms] Primary Display Adapter [GFX-GPP-PCI] Allows you to select which graphics controller to use as the primary boot device. Configuration options: [GFX-GPP-PCI] [GPP-GFX-PCI] [PCI-GFX-GPP] 3.5.4 Onboard Devices Configuration Advanced BIOS SETUP UTILITY OnBoard Devices Configuration Onboard HD Audio Front Panel Type Marvell IDE Marvell IDE Boot ROM Onboard LAN Onboard LAN Boot ROM Onboard 1394 Serial Port1 Address [Enabled] [HD] [Enabled] [Enabled] [Enabled] [Disabled] [Enabled] [3F8/IRQ4] Options Disabled Enabled Onboard HD Audio [Enabled] [Enabled] Enables the onboard High Definition Audio Controller. [Disabled] Disables the controller. Chapter 3 3-18 Chapter 3: BIOS setup

Section	Page
Notices	7
Safety information	8
About this guide	9
M4A79XTD EVO specifications summary	11
Chapter 1: Product introduction	15
1.1 Welcome!	15
1.2 Package contents	15
1.3 Special features	16
1.3.1 Product highlights	16
1.3.2 ASUS unique features	17
1.3.3 ASUS intelligent performance and overclocking features	19
Chapter 2: Hardware information	21
2.1 Before you proceed	21
2.2 Motherboard overview	22
2.2.1 Motherboard layout	22
2.2.2 Layout contents	23
2.2.3 Placement direction	24
2.2.4 Screw holes	24
2.3 Central Processing Unit (CPU)	25
2.3.1 Installing the CPU	25
2.3.2 Installing the CPU heatsink and fan	27
2.4 System memory	30
2.4.1 Overview	30
2.4.2 Memory configurations	31
2.4.3 Installing a DIMM	35
2.4.4 Removing a DIMM	35
2.5 Expansion slots	36
2.5.1 Installing an expansion card	36
2.5.2 Configuring an expansion card	36
2.5.3 Interrupt assignments	37
2.5.4 PCI slots	38
2.5.5 PCI Express x1 slots	38
2.5.6 Two PCI Express 2.0 x16 slots	38
2.6 Jumpers	39
2.7 Connectors	41
2.7.1 Rear panel connectors	41
2.7.2 Audio I/O connections	42
2.7.3 Internal connectors	45
2.7.4. ASUS Q-Connector (system panel)	54
2.8 Starting up for the first time	55
2.9 Turning off the computer	55
Chapter 3: BIOS setup	57
3.1 Knowing BIOS	57
3.2 Updating BIOS	57
3.2.1 ASUS Update utility	58
3.2.2 ASUS EZ Flash 2 utility	60
3.2.3 ASUS CrashFree BIOS 3 utility	61
3.3 BIOS setup program	62
3.3.1 BIOS menu screen	62
3.3.2 Menu bar	62
3.3.3 Navigation keys	63
3.3.4 Menu items	63
3.3.5 Submenu items	63
3.3.6 Configuration fields	63
3.3.7 Pop-up window	63
3.3.8 Scroll bar	63
3.3.9 General help	63
3.4 Main menu	64
3.4.1 Primary IDE Master/Slave; SATA 1-6	64
3.4.2 Storage Configuration	66
3.4.3 System Information	67
3.5 Advanced menu	67
3.5.1 JumperFree Configuration	68
3.5.2 CPU Configuration	72
3.5.3 Chipset	73
3.5.4 Onboard Devices Configuration	74
3.5.5 USB Configuration	75
3.5.6 PCIPnP	76
3.6 Power menu	77
3.6.1 Suspend Mode	77
3.6.2 ACPI 2.0 Support	77
3.6.3 ACPI APIC Support	77
3.6.4 APM Configuration	78
3.6.5 Hardware Monitor	79
3.7 Boot menu	81
3.7.1 Boot Device Priority	81
3.7.2 Boot Settings Configuration	82
3.7.3 Security	83
3.8 Tools menu	85
3.8.1 ASUS EZ Flash 2	85
3.8.2 Express Gate	85
3.8.3 ASUS O.C. Profile	86
3.8.4 AI NET 2	87
3.9 Exit menu	88
Chapter 4: Software support	89
4.1 Installing an operating system	89
4.2 Support DVD information	89
4.2.1 Running the support DVD	89
4.2.2 Obtaining the software manuals	90
4.3 Software information	91
4.3.1 ASUS PC Probe II	91
4.3.2 Cool ‘n’ Quiet!™ Technology	92
4.3.3 ASUS AI Suite	93
4.3.4 ASUS EPU	94
4.3.5 ASUS Q-Fan 2	95
4.3.6 ASUS TurboV	96
4.3.7 ASUS Turbo Key	97
4.3.8 ASUS Express Gate	98
4.3.9 VIA® High Definition Audio utility	99
4.4 RAID configurations	100
4.4.1 RAID definitions	100
4.4.2 Installing Serial ATA hard disks	101
4.4.3 Setting the RAID item in BIOS	101
4.4.4 AMD® Option ROM Utility®	101
4.5 Creating a RAID driver disk	105
4.5.1 Creating a RAID driver disk without entering the OS	105
4.5.2 Creating a RAID driver disk in Windows®	105
4.5.3 Installing the RAID driver during Windows® OS installation	105
4.5.4 Using a USB floppy disk drive	106
Chapter 5: ATI® CrossFireX™ technology support	109
5.1 ATI® CrossFireX™ technology	109
5.1.1 Requirements	109
5.1.2 Before you begin	109
5.2 Installing CrossFireX™ graphics cards	110
5.3 Software information	111
5.3.1 Installing the device drivers	111

Match case Limit results 1 per page

3-18

Chapter 3: BIOS setup

Chapter 3

DRAM ECC Enable [Disabled]

[Disabled]

Disables this function.

[Enabled]

Allows hardware to report and correct memory errors automatically, maintaining

system integrity.

DRAM SCRUB REDIRECT [Disabled]

[Disabled]

Disables this function.

[Enabled]

Allows the system to correct the DRAM ECC errors immediately when they occur.

4-Bit ECC Mode [Disabled]

[Disabled]

Disables the CHIPKILL ECC mode.

[Enabled]

Enables the CHIPKILL ECC mode.

DRAM BG Scrub [Disabled]

Disables or sets the DRAM BG Scrub.

Conﬁguration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us]

[10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms]

[10.49ms] [20.97ms] [42.00ms] [84.00ms]

Data Cache BG Scrub [Disabled]

Disables or sets the Data Cache BG Scrub. This item allows the L1 Data Cache RAM to be

corrected when idle.

Conﬁguration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us]

[10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms]

[10.49ms] [20.97ms] [42.00ms] [84.00ms]

L2/L3 Cache BG Scrub [Disabled]

Disables or sets the L2/L3 Cache BG Scrub. This item allows the L2/L3 Data Cache RAM to be

corrected when idle.

Conﬁguration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us]

[10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms]

[10.49ms] [20.97ms] [42.00ms] [84.00ms]

Primary Display Adapter [GFX-GPP-PCI]

Allows you to select which graphics controller to use as the primary boot device.

Conﬁguration options: [GFX-GPP-PCI] [GPP-GFX-PCI] [PCI-GFX-GPP]

3.5.4

Onboard Devices Conﬁguration

Onboard HD Audio [Enabled]

[Enabled]

Enables the onboard High Deﬁnition Audio Controller.

[Disabled]

Disables the controller.

OnBoard Devices Conﬁguration

Onboard HD Audio

[Enabled]

Front Panel Type

[HD]

Marvell IDE

[Enabled]

Marvell IDE Boot ROM

[Enabled]

Onboard LAN

[Enabled]

Onboard LAN Boot ROM

[Disabled]

Onboard 1394

[Enabled]

Serial Port1 Address

[3F8/IRQ4]

Disabled

Enabled

BIOS SETUP UTILITY

Advanced

Options