Asus M4A78LT PLUS User Manual - Page 46

2-14

Chapter 2: BIOS information

2.4.2

Chipset

NorthBridge Configuration

DRAM Controller Configuration

Bank Interleaving [Auto]

Allows you to enable the bank memory interleaving. Configuration options: [Disabled]

[Auto]

Channel Interleaving [Auto]

Allows you to enable the channel memory interleaving.

Configuration options: [Disabled] [Address bits 6] [Address bits 12] [Auto]

[XOR of Address bits [20:16, 6]] [XOR of Address bits [20:16, 9]]

Enable Clock to All DIMMs [Disabled]

Enables unused Clocks to DIMMs even though memory slots are not populated.

Configuraiton options: [Enabled] [Disabled]

MemClk Tristate C3/ATLVID [Disabled]

Allows you to enable or disable MemClk Tri-Stating during C3 and Alt VID.

Configuration options: [Disabled] [Enabled]

Memory Hole Remapping [Enabled]

Allows you to enable or disable memory remapping around memory hole.


DCT Unganged Mode [Always]

Allows you to select the unganged DRAM mode (64-bit width).

Configuration options: [Auto] [Always]

Power Down Enable [Disabled]

Allows you to enable or disable DDR power down mode.


ECC Configuration

ECC Mode [Disabled]

Enables or disables the DRAM ECC that allows the hardware to report and correct

memory errors automatically. Configuration options: [Disabled] [Basic] [Good] [Super]

[Max] [User]

Primary Video Controller [GFX0-GPP-PCI]

Allows you to set the primary display controller. Configuration options: [GFX0-GPP-PCI]

[GPP-GFX0-PCI] [PCI-GFX0-GPP]

2.4.3

Onboard Devices Configuration

Serial Port1 Address [3F8/IRQ4]

Selects the Serial Port1 base address. Configuration options: [Disabled] [3F8/IRQ4]

[2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

HDAudio Controller [Enabled]

Enables or disables the high definition audio controller. Configuration options: [Disabled]

[Enabled]

Section	Page
Notices	6
Safety information	7
About this guide	8
M4A78LT PLUS specifications summary	9
Chapter 1	11
Product introduction	11
1.1 Before you proceed	11
1.2 Motherboard overview	12
1.2.1 Placement direction	12
1.2.2 Screw holes	12
1.2.3 Motherboard layout	13
1.2.4 Layout contents	14
1.3 Central Processing Unit (CPU)	14
1.3.1 Installing the CPU	14
1.3.2 Installing the heatsink and fan	16
1.4 System memory	17
1.4.1 Overview	17
1.4.2 Memory configurations	18
1.4.3 Installing a DIMM	21
1.4.4 Removing a DIMM	22
1.5 Expansion slots	23
1.5.1 Installing an expansion card	23
1.5.2 Configuring an expansion card	23
1.5.3 PCI slot	23
1.5.4 PCI Express x1 slot	23
1.5.5 PCI Express x16 slot	23
1.6 Jumpers	24
1.7 Connectors	26
1.7.1 Rear panel ports	26
1.7.2 Internal connectors	27
1.8 Software support	32
1.8.1 Installing an operating system	32
1.8.2 Support DVD information	32
Chapter 2	33
BIOS information	33
2.1 Managing and updating your BIOS	33
2.1.1 ASUS Update utility	33
2.1.2 ASUS EZ Flash 2	34
2.1.3 ASUS CrashFree BIOS 3	35
2.1.4 ASUS BIOS Updater	36
2.2 BIOS setup program	39
2.2.1 BIOS menu screen	40
2.2.2 Menu bar	40
2.2.3 Navigation keys	40
2.2.4 Menu items	41
2.2.5 Submenu items	41
2.2.6 Configuration fields	41
2.2.7 Pop-up window	41
2.2.8 Scroll bar	41
2.2.9 General help	41
2.3 Main menu	42
2.3.1 System Time [xx:xx:xx]	42
2.3.2 System Date [Day xx/xx/xxxx]	42
2.3.3 SATA 1~4	42
2.3.4 SATA Configuration	43
2.3.5 System Information	44
2.4 Advanced menu	45
2.4.1 CPU Configuration	45
2.4.2 Chipset	46
2.4.3 Onboard Devices Configuration	46
2.4.4 PCIPnP	47
2.4.5 USB Configuration	47
2.5 Power menu	48
2.5.1 Suspend Mode [Auto]	48
2.5.2 ACPI 2.0 Support [Enabled]	48
2.5.3 ACPI APIC Support [Enabled]	49
2.5.4 APM Configuration	49
2.5.5 HW Monitor Configuration	49
2.5.6 EuP Ready [Disabled]	50
2.6 Boot menu	50
2.6.1 Boot Device Priority	51
2.6.2 Boot Settings Configuration	51
2.6.3 Security	51
2.7 Tools menu	53
2.7.1 ASUS EZ Flash 2	53
2.7.2 ASUS O.C. Profile	53

Asus M4A78LT PLUS User Manual - Page 46

Onboard Devices Conﬁguration

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