M3A78 specifications summary Asus prime Asus M3A78

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M3A78 specifications summary

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 Socket AM2+ / AM2 for AMD Phenom™FX /    

  Phenom / Athlon™ / Sempron™ processor 

Supports up to 140W CPU 

AMD Live!™ Ready 

AMD Cool ‘n’ Quiet™ Technology


AMD 770 / SB700

System bus

Up to 5200 MT/s HyperTransport™ 3.0 interface 

  for AM2+ CPU 

2000 / 1600 MT/s for AM2 CPU


Dual-channel memory architecture 

4 x 240-pin DIMM slots support unbuffered 

  ECC and non-ECC DDR2 1066/800/667/533MHz    

  memory modules 

Supports up to 8GB system memory 

* Due to AM2+ CPU limitation, only one DDR2 1066    

  DIMM is supported per channel. When four DDR2    

  1066 DIMMs are installed, all DIMMs run at 800MHz  

  frequency by default for system stability. 

** Refer to www.asus.com or user manual for 

  Memory QVL (Qualified Vendors List) 

*** When you install a total memory of 4GB or more,    



 32-bit operation system may only recognize  

  less than 3GB. Hence, a total installed memory of less  

  than 3GB is recommended if you are using a Windows  

  32-bit operation system.

Expansion slots

1 x PCI Express™ x16 slot  

2 x PCI Express™ x1 slots  

3 x PCI 2.2 slots 

Support PCI Express™ 2.0 / 1.0 Architecture

Storage / RAID

1 x UltraDMA 133/100 connector 

6 x Serial ATA 3Gb/s connectors support RAID 0, RAID 1,  

  RAID 0+1, and JBOD configuration


VT1708B High Definition Audio 8-channel CODEC  

Supports Jack-Detect and Multistreaming technologies 

Supports S/PDIF Out interface 

S/PDIF Out port at the back panel


Supports up to 12 USB 2.0/1.1 ports (6 ports 

  at mid-board, 6 ports at the back panel) 


Gigabit LAN