Asus M3A78 - Manual (Page 15)

ASUS M3A78 1-3
HyperTransport™ 3.0 support MT/s
5200
HyperTransport 3.0 technology provides 2.6 times more bandwidth than HT1.0 that
radically improves system efficiency for a smoother, faster computing environment.
Native DDR2 1066 support
This motherboard supports native DDR2 1066. It provides faster data transfer rate
and more bandwidth to increase memory computing efficiency, enhancing system
performance in 3D graphics and other memory demanding applications. See page
1-15 for details.
AMD Socket AM2 Athlon™ / Sempron™
CPU support
This motherboard supports AMD Socket AM2 Athlon / Sempron processors. It
features 2000/1600MT/s HyperTransport-based system bus, dual-channel
un-buffered DDR2 800 memory support, and AMD Cool ‘n’ Quiet™Technology.
See page 1-10 for details.
64-bit CPU support
64-bit computing, the next generation technology to replace the current 32-bit
architecture, delivers advanced system performance, faster memory access, and
increased productivity. This motherboard provides excellent compatibility and
flexibility by supporting either 64-bit or 32-bit architecture.
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.