Intel DP55WG Motherboard Review :: Features

11-15-2009 · Category: Motherboards

By Anthony Reynolds
  • Support for LGA-1156 Core i7 and i5 CPUs
  • P55 Express chipset
  • Dual Channel DDR3-1600/1333/1066MHz memory
  • CrossfireX support
  • Intel Matrix Storage Technology
  • ATX 12.0X9.6 inches

Part Number DP55WG
Chipset P55 Express
North BridgeN/A
Socket LGA-1156
Memory speed DDR3 1600 (OC)/1333/1066
Processor Types Core i7, Core i5
Number of CPUs 1
QPI Up to 4.8GT/second
Memory Type DDR3
Memory Channels Double
Maximum Memory 16GB
External Graphics PCI Express x16 2.0 x1, PCI Express x4 2.0 x1
SATA 3.0 GB/s, 6.0Gb/s on two ports
RAID 0, 1, 0+1, 5, 10
LAN 10/100/1000 2 LAN Ports
Firewire IEEE 1394a
BIOS Intel
Form FactorATX

Intelís new motherboard is based upon the P55 Express chipset. This chipset is Intelís first to have moved the PCI Express lanes onto the CPU itself, meaning that there is no longer a need for a separate Northbridge and Southbridge on the motherboard. Intel has replaced the Southbridge with a Platform Controller Hub and the memory and PCI Express lanes are controlled by the CPU itself.

With the memory controller on the CPU itself, the memory support on the DP55WG is 1600MHz (when overclocked)/1333/1066. The LGA-1156 CPUs natively support DDR3 1333MHz but as the BCLK is increased, so is the memory clock. The DP55WG motherboard supports all current LGA-1156 CPUs including the Core i5 750 (2.66GHz), the Core i7 860 (2.93GHz), and the Core i7 870 (3.2GHz)..

All Intel motherboards on the P55 Express chipset support a new feature called Turbo Boost. Turbo Boost was present on earlier motherboards but only allowed the CPU to go up in speed by one speed bin on the multiplier i.e. from 20 to 21. Turbo Boost on the P55 Express chipset allows for higher speed bins allowing the 2.66GHz Core i5 750 to reach 3.2GHz by using a 24x multiplier. The Core i7 870 has a top Turbo Boost mode of 3.6GHz.

ATI introduced CrossfireX to the computer world in 2007 with the launch of the ATI Dragon platform. Intel supports CrossfireX on their P55 Express motherboard chipsets and also supports SLI on their P55 motherboards as long as the board has two PCI Express x16 slots. The DP55WG has a single PCI Express x16 slot and a PCI Express x4 slot that is configured for full-length PCI Express cards. With two cards the system will operate in x8/x4 mode.