Asus M4A78 PRO User Manual - Page 49

Chapter 2: BIOS setup

2-5

2.1.5

ASUS CrashFree BIOS 3 utility

The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file

when it fails or gets corrupted during the updating process. You can update a corrupted BIOS

file using the motherboard support DVD, a floppy disk, or a USB flash disk that contains the

updated BIOS file.

•

Prepare the motherboard support DVD, the floppy disk, or the USB flash disk containing

the updated motherboard BIOS before using this utility.

•

For the M4A78 PRO motherboard, this utility will not function when you use a PATA

optical drive.

•

Always connect the SATA cable to the SATA1 / SATA 2 connector. Otherwise, the utility

will not function.

Bad BIOS checksum. Starting BIOS recovery...

Checking for floppy...

When found, the utility reads the BIOS file and starts erasing the corrupted BIOS file.

Bad BIOS checksum. Starting BIOS recovery...

Checking for floppy...

Floppy found!

Reading file “M4A78PRO.ROM”. Completed.

Start erasing...

Recovering the BIOS

To recover the BIOS:

1.

Turn on the system.

2.

Insert the floppy disk, support DVD, or USB flash disk containing BIOS file to the disk

drive or port.

3.

The utility displays the following message and automatically checks the floppy disk,

support DVD, or USB flash disk for the BIOS file.

•

Only the USB flash disk with FAT 32/16 format and single partition can support ASUS

CrashFree BIOS 3. The device size should be smaller than 8GB.

•

DO NOT shut down or reset the system while updating the BIOS! Doing so can cause

system boot failure!

4.

Restart the system after the utility completes the updating process.

•

The utility automatically checks the floppy disk first. If no floppy disk is found, the utility

then checks the optical drive and the USB flash disk.

•

The recovered BIOS may not be the latest BIOS version for this motherboard. Download

the latest BIOS file from the ASUS website at www.asus.com.

Section	Page
Contents	3
Notices	6
Safety information	7
About this guide	7
M4A78 PRO 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	27
1.7.4 Removing a DIMM	27
1.8 Expansion slots	28
1.8.1 Installing an expansion card	28
1.8.2 Configuring an expansion card	28
1.8.3 PCI slots	28
1.8.4 PCI Express x1 slots	28
1.8.5 PCI Express x16 slot	28
1.9 Jumpers	29
1.10 Connectors	31
1.10.1 Rear panel connectors	31
1.10.2 Internal connectors	34
1.11 Software support	43
1.11.1 Installing an operating system	43
1.11.2 Support DVD information	43
Chapter 2 BIOS information	45
2.1 Managing and updating your BIOS	45
2.1.1 Creating a bootable floppy disk	45
2.1.2 ASUS Update utility	46
2.1.3 ASUS EZ Flash 2 utility	47
2.1.4 AFUDOS utility	48
2.1.5 ASUS CrashFree BIOS 3 utility	49
2.2 BIOS setup program	50
2.2.1 BIOS menu screen	51
2.2.2 Menu bar	51
2.2.3 Navigation keys	52
2.2.4 Menu items	52
2.2.5 Submenu items	52
2.2.6 Configuration fields	52
2.2.7 General help	52
2.2.8 Pop-up window	52
2.2.9 Scroll bar	52
2.3 Main menu	53
2.3.1 System Time [xx:xx:xx]	53
2.3.2 System Date [Day xx/xx/xxxx]	53
2.3.3 Legacy Diskette A [1.44M, 3.5 in.]	53
2.3.4 Primary IDE Master/Slave	53
2.3.5 SATA 1–6	54
2.3.6 Storage Configuration	55
2.3.7 System Information	55
2.4 Ai Tweaker menu	56
2.4.1 AI Overclocking [Auto]	56
2.4.2 DRAM Frequency Control [Auto]	56
2.4.3 HT Link Speed [Auto]	57
2.4.4 Processor Voltage [Auto]	59
2.4.5 CPU/NB Voltage [Auto]	59
2.4.6 CPU VDDA Voltage [Auto]	60
2.4.7 DRAM Voltage [Auto]	60
2.4.8 HT Voltage [Auto]	60
2.4.9 NB Voltage [Auto]	60
2.4.10 NB 1.8V Voltage [Auto]	60
2.4.11 SB Voltage [Auto]	60
2.4.12 CPU Spread Spectrum [Enabled]	60
2.4.13 PCIE Spread Spectrum [Enabled]	60
2.4.14 SB Clock Spread Spectrum [Disabled]	60
2.5 Advanced menu	61
2.5.1 CPU Configuration	61
2.5.2 Chipset	62
2.5.3 Onboard Devices Configuration	64
2.5.4 USB Configuration	65
2.6 Power menu	65
2.6.1 Suspend Mode [Auto]	66
2.6.2 Repost Video on S3 Resume [No]	66
2.6.3 ACPI 2.0 Support [Disabled]	66
2.6.4 ACPI APIC Support [Enabled]	66
2.6.5 APM Configuration	66
2.6.6 Hardware Monitor	67
2.7 Boot menu	68
2.7.1 Boot Device Priority	68
2.7.2 Boot Settings Configuration	68
2.7.3 Security	69
2.8 Tools menu	70
2.8.1 ASUS EZ Flash 2	70
2.8.2 Express Gate [Enabled]	70
2.8.3 ASUS O.C. Profile	71
2.8.4 AI NET 2	71

Asus M4A78 PRO User Manual - Page 49

ASUS CrashFree BIOS 3 utility - boot from usb

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