Asus M4A785G HTPC RC User Manual - Page 64

2-14

ASUS M4A785G HTPC Series

2.5.2

Chipset

The

Chipset

menu allows you to change the advanced chipset settings. Select an item then

press

<Enter>

to display the submenu.

ECC Configuration

ECC Mode [Disabled]

Disables or sets the DRAM ECC mode that allows the hardware to report and

correct memory errors. Set this item to [Basic], [Good], or [Max] to allow ECC mode

auto-adjustment. Set this item to [Super] to adjust the

DRAM BG Scrub

sub-item

manually. You may also adjust all sub-items by setting this item to [User].

Configuration options: [Disabled] [Basic] [Good] [Super] [Max] [User]

DRAM ECC Enable [Disabled]

Set this item to [Enabled] to allow hardware to report and correct memory errors automatically,

maintaining system integrity. Configuration options: [Disabled] [Enabled]

DRAM SCRUB REDIRECT [Disabled]

Enables or disables the DRAM SCRUB REDIRECT feature that allows the system to correct the

DRAM ECC errors immediately when they occur. Configuration options: [Disabled] [Enabled]

4-Bit ECC Mode [Disabled]

Enables or disables the ECC chip kill feature. Configuration options: [Disabled] [Enabled]

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]

Internal Graphics Configuration

This menu allows you to change the onboard graphics configuration settings. Select an item

then press <Enter> to display the submenu.

UMA Frame Buffer Size [Auto]

Allows you to select the UMA Frame Buffer size. Configuration options: [Auto] [32MB]

[64MB] [128MB] [256MB]

GFX Engine Clock Override [Disabled]

Allows you to enable or disable the GFX Engine Clock Override function.

Configuration options: [Disabled] [Enabled]

Surround View [Auto]

If you set the PCI Express device as the primary display and enable this item, you may

use the internal graphics as the secondary display. Configuration options: [Auto] [Enabled]

[Disabled]

Section	Page
Contents	3
Notices	6
Safety information	7
About this guide	8
M4A785G HTPC Series specifications summary	9
Chapter 1 Product introduction	13
1.1 Welcome!	13
1.2 Package contents	13
1.3 Special features	13
1.3.1 Product highlights	13
1.3.2 Innovative ASUS features	14
1.4 Before you proceed	16
1.5 Motherboard overview	17
1.5.1 Placement direction	17
1.5.2 Screw holes	17
1.5.3 Motherboard layout	18
1.5.4 Layout contents	18
1.6 Central Processing Unit (CPU)	19
1.6.1 Installing the CPU	19
1.6.2 Installing the heatsink and fan	20
1.7 System memory	22
1.7.1 Overview	22
1.7.2 Memory configurations	22
1.7.3 Installing a DIMM	30
1.7.4 Removing a DIMM	30
1.8 Expansion slots	31
1.8.1 Installing an expansion card	31
1.8.2 Configuring an expansion card	31
1.8.3 PCI slot	31
1.8.4 PCI Express x1 slots	31
1.8.5 PCI Express 2.0 x16 slot	31
1.9 Jumpers	32
1.10 Connectors	33
1.10.1 Rear panel connectors	33
1.10.2 Internal connectors	37
1.11 Software support	46
1.11.1 Installing an operating system	46
1.11.2 Support DVD information	46
1.11.3 ASUS Home Theater Gate	47
Chapter 2 BIOS information	51
2.1 Managing and updating your BIOS	51
2.1.1 ASUS Update utility	51
2.1.2 ASUS EZ Flash 2 utility	52
2.1.3 ASUS CrashFree BIOS 3 utility	53
2.2 BIOS setup program	53
2.2.1 BIOS menu screen	54
2.2.2 Menu bar	54
2.2.3 Navigation keys	55
2.2.4 Menu items	55
2.2.5 Submenu items	55
2.2.6 Configuration fields	55
2.2.7 General help	55
2.2.8 Pop-up window	55
2.2.9 Scroll bar	55
2.3 Main menu	56
2.3.1 System Time [xx:xx:xx]	56
2.3.2 System Date [Day xx/xx/xxxx]	56
2.3.3 Language [English]	56
2.3.4 Primary IDE Master/Slave	56
2.3.5 SATA 1–5/ESATA	57
2.3.6 Storage Configuration	58
2.3.7 System Information	58
2.4 Ai Tweaker menu	59
2.4.1 Ai Overclock Tuner [Auto]	59
2.4.2 CPU Ratio [Auto]	59
2.4.3 DRAM Frequency [Auto]	59
2.4.4 CPU/NB Frequency [Auto]	60
2.4.5 HT Link Frequency [Auto]	60
2.4.6 Memory Configuration	60
2.4.7 DRAM Timing Configuration	60
2.4.8 CPU Voltage [Auto]	62
2.4.9 CPU/NB Voltage [Auto]	62
2.4.10 DRAM Voltage [Auto]	62
2.4.11 NB Voltage [Auto]	62
2.4.12 HT/SB Voltage [Auto]	62
2.4.13 CPU Spread Spectrum [Auto]	62
2.4.14 PCIE Spread Spectrum [Auto]	62
2.5 Advanced menu	63
2.5.1 CPU Configuration	63
2.5.2 Chipset	64
2.5.3 Onboard Devices Configuration	65
2.5.4 USB Configuration	65
2.5.5 PCIPnP	66
2.6 Power menu	66
2.6.1 Suspend Mode [Auto]	67
2.6.2 ACPI 2.0 Support [Disabled]	67
2.6.3 ACPI APIC support [Enabled]	67
2.6.4 Chassis LED [On]	67
2.6.5 EuP Ready [Disabled]	67
2.6.6 APM Configuration	67
2.6.7 Hardware Monitor	68
2.7 Boot menu	69
2.7.1 Boot Device Priority	69
2.7.2 Boot Settings Configuration	69
2.7.3 Security	70
2.8 Tools menu	71
2.8.1 ASUS EZ Flash 2	71
2.8.2 Express Gate [Auto]	71
2.8.3 AI NET 2	71

Asus M4A785G HTPC RC User Manual - Page 64

Chipset

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