Instruction Manual
Table Of Contents
- Contents
- Chapter 1 Product introduction
- Chapter 2 BIOS setup
- 2.1 Managing and updating your BIOS
- 2.2 BIOS setup program
- 2.3 Main menu
- 2.4 Ai Tweaker menu
- 2.4.1 AI Overclocking [Auto]
- 2.4.2 DRAM Frequency Control [Auto]
- 2.4.3 HT Link Speed [Auto]
- 2.4.4 CPU Voltage [Auto]
- 2.4.5 CPU/NB Voltage [Auto]
- 2.4.6 CPU VDDA Voltage [Auto]
- 2.4.7 DRAM Voltage [Auto]
- 2.4.8 HT Voltage [Auto]
- 2.4.9 NB Voltage [Auto]
- 2.4.10 CPU/LDT Spread Spectrum [Disabled]
- 2.4.11 PCIE Spread Spectrum [Disabled]
- 2.4.12 SATA Spread Spectrum [Disabled]
- 2.4.13 PCI Spread Spectrum [Disabled]
- 2.5 Advanced menu
- 2.6 Power menu
- 2.7 Boot menu
- 2.8 Tools menu
- 2.9 Exit menu

ix
M4N78 PRO specications summary
Storage
NVIDIA GeForce 8300
- 1 x Ultra DMA 133/100
- 6 x SATA 3.0 Gb/s connectors (Legacy IDE operation
is only supported on SATA_1/2/3/4 connectors)
- NVIDIA
®
MediaShield™ RAID supports RAID 0, 1, 5,
10 and JBOD
High Denition Audio
VIA1708S 8-channel High Denition Audio CODEC8-channel High Denition Audio CODEC
- Supports Jack-Detection, Multi-Streaming andSupports Jack-Detection, Multi-Streaming andMulti-Streaming and
Front Panel Jack-Retasking
- Optical S/PDIF Out port at back I/OS/PDIF Out port at back I/O
- ASUS Noise Filtering
ASUS Unique Features ASUS Power Solution:
- ASUS 4+1 Phase Power Design
- ASUS Anti-Surge Protection
Express Gate
ASUS Green Design:
- ASUS EPU*
- ASUS AI Nap
*ASUS EPU is supported by AM3/AM2+ CPU only.
ASUS Quiet Thermal Solution:
- ASUS Fanless Design: Stylish heatsink solution
- ASUS Q-Fan 2
ASUS Crystal Sound:
- ASUS Noise Filtering
ASUS EZ DIY
- ASUS Q-Connector
- ASUS CrashFree BIOS 2
- ASUS O.C. Prole
- ASUS EZ Flash 2
Special Features
Uses 100% All High-quality Conductive Polymer Capacitors!
(5000hrs VRM, over 57 years’ operation lifespan at 65˚C)
ASUS MyLogo 2™
ASUS Exclusive
Overclocking Features
Intelligent overclocking tools:
- AI Overclocking (Intelligent CPU Frequency Tuner)
- ASUS TurboV
- ASUS Turbo Key
Precision Tweaker:
- vCore: Adjustable CPU voltage at 50mv increment
- vDIMM: 8-step DRAM voltage control
- vChipset: 4-step Chipset voltage control
SFS (Stepless Frequency Selection):
- FSB tuning from 200MHz up to 600MHz at 2MHz
increment
- PCIe frequency tuning from 100MHz to 200MHz
at 1MHz increment
Overclocking protection:
- ASUS C.P.R. (CPU Parameter Recall)
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