Gigabyte GA-X48-DS5 Intel X48 Express Motherboard Review
 

Gigabyte's high-end GA-X48-DS5 motherboard is, as you might have guessed, based on the Intel X48 Express and ICH9R chipsets. It's core logic offers up 32 lanes of PCI Express 2.0 bandwidth which makes this platform great for running a pair of Crossfire'd ATI videocards at full tilt. The notable differences between the two are an increase in the range of DDR3 memory supported, the introduction of PCI Express 2.0, and official capability for 45nm 1600MHz FSB processors. Other than that, not a whole lot has changed for Intel's top-tier chipset for the socket 775 CPU platform

http://www.pcstats.com/articleview.cfm?articleID=2366