Asus M4A785G HTPC RC User Manual - Page 65

Chapter 2: BIOS setup

2-15

FB Location [Above 4G]

Allows you to select the FB Location.

Configuration options: [Below 4G] [Above 4G]

AMD 785G HD Audio [Enabled]

Allows you to disable or enable the AMD 785G HD Audio.

Configuration options: [Disabled] [Enabled]

Primary Display Adapter [PCI-E]

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

Configuration options: [PCI-E] [PCI] [Onboard]

2.5.3

Onboard Devices Configuration

Onboard HD Audio [Enabled]

Allows you to enable or disable the HD Audio controller.


Front Panel Select [HD]

Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or

high-definition audio depending on the audio standard that the front panel audio

module supports. Configuration options: [AC97] [HD]

Audio PWR Reminder [Enabled]

When the system detects that no power cable is plugged in the audio power connector,

a reminder will appear during POST. This item allows you to enable or disable this

function. Configuration options: [Enabled] [Disabled]

Onboard LAN [Enabled]

Allows you to enable or disable the onboard LAN. Configuration options: [Enabled] [Disabled]

Onboard LAN Boot ROM [Disabled]

Allows you to enable or disable the onboard LAN Boot ROM.


Onboard 1394 [Enabled]

Allows you to enable or disable the onboard 1394 device support.


2.5.4

USB Configuration

The items in this menu allows you to change the USB-related features. Select an item then

press

<Enter>

to display the configuration options.

The

Module Version

and

USB Devices Enabled

items show the auto-detected values. If

no USB device is detected, the item shows

None

.

Legacy USB Support [Auto]

Allows you to enable or disable support for USB devices on legacy operating systems

(OS). Setting to Auto allows the system to detect the presence of USB devices at startup.

If detected, the USB controller legacy mode is enabled. If no USB device is detected, the

legacy USB support is disabled. Configuration options: [Disabled] [Enabled] [Auto]

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 65

Onboard Devices Conﬁguration, USB Conﬁguration

Page 65 highlights