Asus P7P55 LX JOOYON SI User Guide - Page 46

2-4

ASUS P7P55 LX

•

NTFS is not supported under DOS environment. Do not save the BIOS file and BIOS

Updater to a hard disk drive or USB flash drive in NTFS format.

•

Do not save the BIOS file to a floppy disk due to low disk capacity.

3.

Turn off the computer and disconnect all SATA hard disk drives (optional).

Booting the system in DOS environment

1.

Insert the USB flash drive with the latest BIOS file and BIOS Updater to the USB port.

2.

Boot your computer. When the ASUS Logo appears, press <F8> to show the

BIOS

Boot Device Select Menu

. Insert the support DVD into the optical drive and select the

optical drive as the boot device.

Welcome to FreeDOS (http://www.freedos.org)!

C:\>d:

D:\>

3.

When the

Make Disk

menu appears, select the

FreeDOS command prompt

item by

pressing the item number.

4.

At the FreeDOS prompt, type

d:

and press <Enter> to switch the disk from

Drive C (optical drive) to Drive D (USB flash drive).

Please select boot device:

↑

and

↓

to move selection

ENTER to select boot device

ESC to boot using defaults

SATA:XXXXXXXXXXXXXXXX

CDROM:XXXXXXXXXXXXXXX

USB:XXXXXXXXXXXXXXXXX

Network:XXXXXXXXXXXXX

2.

The BIOS Updater backup screen appears indicating the BIOS backup process. When

BIOS backup is done, press any key to return to the DOS prompt.

D:\>bupdater /oOLDBIOS1.rom

Filename

Extension

Backing up the current BIOS

To backup the current BIOS file using the BIOS Updater

Ensure that the USB flash drive is not write-protected and has at least 1024KB free space

to save the file.

1.

At the FreeDOS prompt, type

bupdater /o[filename]

and press <Enter>.

The [filename] is any user-assigned filename with no more than eight alphanumeric

characters for the filename and three alphanumeric characters for the extension.

Section	Page
Notices	6
Safety information	7
About this guide	8
P7P55 LX specifications summary	10
Chapter 1	13
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	17
1.5 Motherboard overview	18
1.5.1 Placement direction	18
1.5.2 Screw holes	18
1.5.3 Motherboard layout	19
1.5.4 Layout contents	19
1.6 Central Processing Unit (CPU)	20
1.6.1 Installing the CPU	20
1.6.2 Installing the CPU heatsink and fan	23
1.6.3 Uninstalling the CPU heatsink and fan	24
1.7 System memory	25
1.7.1 Overview	25
1.7.2 Memory configurations	26
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 slots	31
1.8.4 PCI Express x1 slots	31
1.8.5 PCI Express x16 slots	31
1.9 Jumpers	32
1.10 MemOK! switch	34
1.11 Connectors	35
1.11.1 Rear panel connectors	35
1.11.2 Internal connectors	36
1.12 Software support	42
1.12.1 Installing an operating system	42
1.12.2 Support DVD information	42
Chapter 2	43
BIOS information	43
2.1 Managing and updating your BIOS	43
2.1.1 ASUS Update utility	43
2.1.2 ASUS EZ Flash 2	44
2.1.3 ASUS CrashFree BIOS	45
2.1.4 ASUS BIOS Updater	45
2.2 BIOS setup program	48
2.2.1 BIOS menu screen	49
2.2.2 Menu bar	49
2.2.3 Navigation keys	50
2.2.4 Menu items	50
2.2.5 Submenu items	50
2.2.6 Configuration fields	50
2.2.7 Pop-up window	50
2.2.8 Scroll bar	50
2.2.9 General help	50
2.3 Main menu	51
2.3.1 System Time	51
2.3.2 System Date	51
2.3.3 SATA1~6	51
2.3.4 Storage Configuration	52
2.3.5 AHCI Configuration	53
2.3.6 System Information	53
2.4 Ai Tweaker menu	54
2.4.1 Ai Overclock Tuner	54
2.4.2 CPU Ratio Setting	55
2.4.3 Intel(R) SpeedStep(TM) Tech	55
2.4.4 Intel(R) TurboMode Tech	55
2.4.5 Xtreme Phase Full Power Mode	55
2.4.6 DRAM Frequency	56
2.4.7 QPI Frequency	56
2.4.8. DRAM Timing Control	56
2.4.9 CPU Clock Skew	58
2.4.10 VCore Over Voltage	58
2.4.11 IMC Voltage	59
2.4.12 CPU PLL Voltage	59
2.4.13 PCH Voltage	59
2.4.14 DRAM Voltage	59
2.4.15 Load-Line Calibration	59
2.5 Advanced menu	60
2.5.1 CPU Configuration	60
2.5.2 North Bridge Configuration	62
2.5.3 Onboard Devices Configuration	62
2.5.4 USB Configuration	62
2.5.5 PCIPnP	63
2.5.6 Intel VT-d	63
2.6 Power menu	63
2.6.1 Suspend Mode	64
2.6.2 ACPI 2.0 Support	64
2.6.3 ACPI APIC Support	64
2.6.4 APM Configuration	64
2.6.5 Hardware Monitor	65
2.7 Boot menu	66
2.7.1 Boot Device Priority	66
2.7.2 Boot Settings Configuration	67
2.7.3 Security	67
2.8 Tools menu	68
2.8.1 ASUS O.C. Profile	69
2.8.2 AI NET 2	69
2.8.3 Express Gate	69
2.8.4 ASUS EZ Flash 2	70

Asus P7P55 LX JOOYON SI User Guide - Page 46

Booting the system in DOS environment, Backing up the current BIOS

Page 46 highlights