Home » Asus Manuals » Motherboards » Asus Z77-A » Manual Viewer

Asus Z77-A Z77-A User's Manual - Page 72

USB Conﬁguration

Add to My Manuals
Save this manual to your list of manuals

Page 72 highlights

2.5.5 USB Configuration The items in this menu allow you to change the USB-related features. The USB Devices item shows the auto-detected values. If no USB device is detected, the item shows None. Intel USB2.0 EHCI Controller [Enabled] Enables the USB2.0 EHCI Controller. [Disabled] Disables the USB2.0 EHCI Controller. Legacy USB Support [Enabled] [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Disabled] The USB devices can be used only for the BIOS setup program. [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. Legacy USB3.0 Support [Enabled] [Enabled] Enables the support for USB 3.0 devices on legacy operating systems (OS). [Disabled] Disables the function. Intel xHCI Mode [Smart Auto] Allows you to select the Intel xHCI Mode. Configuration options: [Smart Auto] [Auto] [Enabled] [Disabled] EHCI Hand-off [Disabled] [Enabled] Enables the support for operating systems without an EHCI hand‑off feature. [Disabled] Disables the function. USB Single Port Control Allows you to enable or disable individual USB ports. 2-26 Chapter 2: BIOS information

Section	Page
Safety information	6
About this guide	7
Z77-A specifications summary	9
Package contents	12
Product introduction	13
1.1 Product highlights	13
1.2 Before you proceed	16
1.3 Motherboard overview	17
1.3.1 Placement direction	17
1.3.2 Screw holes	17
1.3.3 Motherboard layout	18
1.3.4 Layout contents	19
1.4 Intel® CPU LGA1155 socket	19
1.4.1 CPU installation	20
1.4.2 CPU heatsink and fan assembly installation	21
1.5 System memory	23
1.5.1 Overview	23
1.5.2 Memory configurations	24
1.5.3 Installing a DIMM	31
1.6 Expansion slots	32
1.7 Jumpers	34
1.8 Connectors	36
1.8.1 Rear panel ports	36
1.8.2 Internal connectors	38
1.9 Software support	46
1.9.1 Installing an operating system	46
1.9.2 Support DVD information	46
BIOS information	47
2.1 Managing and updating your BIOS	47
2.1.1 ASUS Update utility	47
2.1.2 ASUS EZ Flash 2	48
2.1.3 ASUS CrashFree BIOS 3 utility	49
2.1.4 ASUS BIOS Updater	50
2.2 BIOS setup program	53
2.3 Main menu	57
2.3.1 System Language [English]	57
2.3.2 System Date [Day xx/xx/xxxx]	57
2.3.3 System Time [xx:xx:xx]	57
2.3.4 Security	57
2.4 Ai Tweaker menu	59
2.4.1 Ai Overclock Tuner [Auto]	60
2.4.2 ASUS MultiCore Enhancement [Enabled]	60
2.4.3 Turbo Ratio [Auto]	60
2.4.4 Internal PLL Overvoltage [Auto]	60
2.4.5 Memory Frequency [Auto]	61
2.4.6 iGPU Max. Frequency [Auto]	61
2.4.7 EPU Power Saving Mode [Disabled]	61
2.4.8 OC Tuner	61
2.4.9 DRAM Timing Control	61
2.4.10 CPU Power Management	61
2.4.11 DIGI+ VRM	62
2.5 Advanced menu	66
2.5.1 CPU Configuration	66
2.5.2 PCH Configuration	69
2.5.3 SATA Configuration	70
2.5.4 System Agent Configuration	71
2.5.5 USB Configuration	72
2.5.6 Onboard Devices Configuration	73
2.5.7 APM	74
2.5.8 Network Stack	75
2.6 Monitor menu	76
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	77
2.6.2 CPU / Chassis Fan 1/2 / PWR Fan Speed [xxxx RPM] or [Ignore] / [N/A]	77
2.6.3 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	77
2.6.4 CPU Q-Fan Control [Enabled]	77
2.6.5 CPU Fan Speed Low Limit [200 RPM]	77
2.6.6 Chassis1/2 Q-Fan Control [Enabled]	78
2.6.7 Chassis Fan Speed Low Limit [600 RPM]	78
2.6.8 Anti Surge Support [Enabled]	79
2.7 Boot menu	80
2.7.1 Fast Boot [Enabled]	81
2.7.2 Full Screen Logo [Enabled]	81
2.7.3 Post Delay Time [3 sec]	82
2.7.4 Bootup NumLock State [On]	82
2.7.5 Wait for ‘F1’ If Error [Enabled]	82
2.7.6 Option ROM Messages [Force BIOS]	82
2.7.7 Interrupt 19 Capture [Postponed]	82
2.7.8 Setup Mode [EZ Mode]	82
2.7.9 CSM (Compatibility Support Module)	82
2.7.10 Secure Boot	84
2.7.11 Boot Option Priorities	85
2.7.12 Boot Override	85
2.8 Tools menu	86
2.8.1 ASUS EZ Flash 2 Utility	86
2.8.2 ASUS O.C. Profile	86
2.8.3 ASUS SPD Information	86
2.9 Exit menu	87
Appendices	89
Notices	89