Features:
Intel X38/iCH9R
8-phase VRM
VIA VT6308P
2x Marvell 88E8056 PCIe network MAC
JMicro JMB363 SATA II RAID 0, 1/IDE controller
Winbond W83627DHG-A super I/O controller
ICS9LPRS918HKL clock generator
passive cooling of chipsets/VRM
16Mb BIOS, version 0903 Extreme
16Mb BIOS, version 0803 Beta Formula
Mainboard  Revision: 1.02G

Slots:
Formula:
2x PCIe 2.0 x16 (graphic cards only!)
2x PCIe x1
2x PCI
1x Soundslot

Extreme:
1x PCIe 2.0 x16 (graphic cards only!)
2x PCIe x16 @ x8 (via IDT switch chip)
1x PCIe x1
2x PCI
1x Soundslot

Memory:

Formula:
2x Dual-Channel DDR2-slots for PC2-6400U memory up to 8GB with ECC

Extreme:
2x Dual-Channel DDR3-slots for PC2-8500U memory up to 8GB with ECC

Storage:
6-Port SATA II featuring RAID 0, 1, 5, 0+1, JBOD
1-Port IDE
2-Port eSATA II

Backpanel ports:

1x PS/2 keyboard
2x eSATA II
2x Gb LAN
1x Firewire
6x USB 2.0
1x SP/DIF coaxial out
1x SP/DIF optical out
1x CMOS-clear switch


 ASUS Maximus Formula


 ASUS Maximus Extreme


Accessories:

1x 2-port USB + 1-port Firewire bracket
6x SATA cable (3 angeled 90°)
1x HDD-power to 2x SATA power cable
1x Floppy cable
1x IDE cable
1x ASUS Q-Connetor Pack
1x additional fan
1x Supreme FX II soundcard
1x LCD Display




BIOS features:

Bus Speeds: Auto, 200MHz to 800MHz in 1MHz increments
Memory Ratios: Auto, fixed ratios: 1:1, 1:1.2, 1:1.25, 1.5, 1.66, 1:2 depending on FSB/strap
FSB Strap: Auto, 200MHz, 266MHz, 333MHz, 400MHz
DRAM command rate: Auto, 1T, 2T
DRAM timing control: Auto, manual
PCIe Frequency: Auto, 100 to 150 MHz in 1MHz increments
Transaction Booster: Auto, disable (relax 1-8) , enable (boost 1-8)
CPU Clock Multiplier: Auto, manual
Core 2 Duo: 6x-11x in 1X increments - Core 2 Duo, downwards unlocked
Core 2 Extreme: 6x-16X, downwards unlocked
CPU Voltage: auto, 1.1000V to 1.9000V in 0.00625V increments, 1.9500V-2.4000V in various increments
CPU GTL Reference: Auto, 0.57x, 0.59x, 0.61x, 0.63x
Loadline calibration: Auto, disable, enable
CPU PLL Voltage: Auto, 1.50V to 3.00V in 0.02V increments
DRAM Voltage: Auto, 1.50V to 3.04V in 0.02V increments
FSB Termination Voltage: Auto, 1.20V to 1.50V in 0.02V increments
North Bridge Voltage: Auto, 1.25V to 2.05V in 0.02V increments
South Bridge Voltage: Auto, 1.050V to 1.225V in 0.025V increments
additional settings for memory timings and voltage settings.