Asus P7H55 USB3 User Guide - Page 46

2-6

Chapter 2: BIOS information

32Bit Data Transfer [Enabled]

[Enabled]

Sets the IDE controller to combine two 16-bit reads from the hard disk

into a single 32-bit double word transfer to the processor. This makes

more efficient use of the PCI bus as fewer transactions are needed for the

transfer of a particular amount of data.

[Disabled]

Disables this function.

2.3.2

Storage Configuration

The Storage Configuration menu allows you to configure your storage devices. Select an

item then press <Enter> to display the submenu.

SATA Configuration [Enhanced]

Configuration options: [Disabled] [Compatible] [Enhanced]

Configure SATA as [IDE]

Sets the configuration for the Serial ATA connectors supported by the Southbridge chip.

Configuration options: [IDE] [AHCI]

•

If you want to use the Serial ATA hard disk drives as Parallel ATA physical storage

devices, keep the default setting [IDE].

•

If you want the Serial ATA hard disk drives to use the Advanced Host Controller Interface

(AHCI), set this item to [AHCI]. The AHCI allows the onboard storage driver to enable

advanced Serial ATA features that increases storage performance on random workloads

by allowing the drive to internally optimize the order of commands.

Hard Disk Write Protect [Disabled]

Disables or enables device write protection. This will be effective only if the device is

accessed through BIOS. Configuration option: [Disabled] [Enabled]

IDE Detect Time Out (Sec) [35]

Selects the time out value for detecting ATA/ATAPI devices. Configuration options: [0] [5] [10]

[15] [20] [25] [30] [35]

2.3.3

AHCI Configuration

This menu is the section for AHCI configuration. It appears only when you set the item

Configure SATA as from the sub-menu of SATA Configuration to [AHCI].

SATA Port1–6 [XXXX]

Displays the status of auto-detection of SATA devices.

SATA Port1 [Auto]

Allows you to select the type of device connected to the system.

Configuration options: [Auto] [Not Installed]

SMART Monitoring [Enabled]

Allows you to set the Self-Monitoring, Analysis and Reporting Technology.

Configration options: [Disabled] [Enabled]

Section	Page
P7H55/USB3 specifications summary	9
Chapter 1: Product introduction	13
1.1 Before you proceed	13
1.2 Motherboard overview	14
1.2.1 Motherboard layout	14
1.2.2 Layout contents	14
1.3 Central Processing Unit (CPU)	15
1.3.1 Installing the CPU	15
1.3.2 Installing the CPU heatsink and fan	18
1.3.3 Uninstalling the CPU heatsink and fan	19
1.4 System memory	20
1.4.1 Overview	20
1.4.2 Memory configurations	21
1.4.3 Installing a DIMM	28
1.4.4 Removing a DIMM	28
1.5 Expansion slot	29
1.5.1 Installing an expansion card	29
1.5.2 Configuring an expansion card	29
1.5.3 PCI slots	29
1.5.4 PCI Express x1 slots	29
1.5.5 PCI Express 2.0 x16 slots	29
1.6 Jumpers	30
1.7 Onboard switches	31
1.8 Connectors	33
1.8.1 Rear panel connectors	33
1.8.2 Internal connectors	34
1.9 Installing an operating system	40
1.10 Support DVD information	40
1.10.1 Running the support DVD	40
Chapter 2: BIOS setup	41
2.1 Managing and updating your BIOS	41
2.1.1 ASUS Update	41
2.1.2 ASUS EZ Flash 2	42
2.1.3 ASUS CrashFree BIOS 3 utility	43
2.2 BIOS setup program	44
2.3 Main menu	44
2.3.1 SATA 1-6	45
2.3.2 Storage Configuration	46
2.3.3 AHCI Configuration	46
2.3.4 System Information	47
2.4 Ai Tweaker menu	48
2.4.1 CPU Level Up [Auto]	48
2.4.2 Ai Overclock Tuner [Auto]	49
2.4.3 CPU Ratio Setting [Auto]	49
2.4.4 Intel(R) SpeedStep(TM) Tech [Enabled]	50
2.4.5 Intel(R) TurboMode Tech [Enabled]	50
2.4.6 Xtreme Phase Full Power Mode [Auto]	50
2.4.7 DRAM Frequency [Auto]	50
2.4.8 QPI Frequency [Auto]	50
2.4.9 ASUS/3rd Party UI Priority [ASUS Utility]	50
2.4.10 OC Tuner [Turbo Profile]	51
2.4.11 Start auto tuning	51
2.4.12 DRAM Timing Control [Auto]	51
2.4.13 CPU Differential Amplitude [Auto]	53
2.4.14 CPU Clock Skew [Auto]	53
2.4.15 CPU Voltage Mode [Offset]	53
2.4.16 IMC Voltage [Auto]	53
2.4.17 DRAM Voltage [Auto]	53
2.4.18 CPU PLL Voltage [Auto]	54
2.4.19 PCH Voltage [Auto]	54
2.4.20 DRAM DATA REF Voltage on CHA/B [Auto]	54
2.4.21 Load-Line Calibration [Auto]	54
2.4.22 CPU Spread Spectrum [Auto]	54
2.4.23 PCIE Spread Spectrum [Auto]	54
2.5 Advanced menu	55
2.5.1 CPU Configuration	55
2.5.2 Uncore Configuration	57
2.5.3 Onboard Device Configuration	57
2.5.4 USB Configuration	57
2.5.5 PCIPnP	58
2.5.6 Intel VT-d Configuration [Disabled]	58
2.6 Power menu	59
2.6.1 Suspend Mode [Auto]	59
2.6.2 Repost Video on S3 Resume [No]	59
2.6.3 ACPI 2.0 Support [Disabled]	59
2.6.4 ACPI APIC Support [Enabled]	59
2.6.5 EuP Ready [Disabled]	59
2.6.6 APM Configuration	60
2.6.7 Hardware Monitor	61
2.7 Boot menu	62
2.7.1 Boot Device Priority	62
2.7.2 Boot Settings Configuration	62
2.7.3 Security	63
2.8 Tools menu	65
2.8.1 ASUS O.C. Profile	65
2.8.2 AI NET 2	65
2.8.3 ASUS EZ Flash 2	66
2.8.4 Express Gate [Auto]	66

Asus P7H55 USB3 User Guide - Page 46

Storage Conﬁguration, AHCI Conﬁguration - pci

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