Asus P7H55-M review

Can you get the most from Clarkdale with such a reasonably priced motherboard?

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Our Verdict

We like the P7H55-M. It's not perfected yet, but certainly a front runner among the H55 boards.


  • Incremental base clock adjustment
  • Lots of over-clocking adjustments to experiment with
  • USB 3.0 and SATA 600 support
  • Bullet-proof BIOS
  • Competitive price


  • Automatic over-clocking decidedly hit and miss
  • Detailed over-clocking requires technical knowledge
  • Can we have a clock multiplier over 24 please?
  • Limited slots and only a single x16 PCIe
  • No external SATA port

The release of Intel's Clarkdale chip and its accompanying H55 chipset means new boards all round for Intel's LGA1156 boys. The shiny new P7H55-M from ASUS aims to offer a full-blooded experience at little more than budget price and comes with a raft of overclocking tools to keep the most dedicated explorer of performance tweaks happy.

It has the neat ability to adjust its base clock in 1MHz increments, and you've got a Marvell SATA controller running two internal SATA 600 ports, and two external USB 3.0 ports, so you're tooled-up for fast drives.

The feature list is full of Asus' unique features; some lovely, some fairly pointless (does anybody on earth use Express Gate?). The two Asus is most pleased about are the new green-friendly Energy Processor Unit, which does clever things to voltage and multipliers across the whole board, and Turbo Unlocker – press a button and get an instant boost with unlocked chips (they tell us).


Tech Specs

Product TypeDesktop Motherboard
Chipset ManufacturerIntel
Chipset ModelP55 Express
Number of PCI Express x16 Slots1
Memory TechnologyDDR3 SDRAM
Processor SocketSocket 1156
Brand NameAsus
Form FactorMicro ATX
Processor SupportedCore i7, Core i5
Total Processor Supported1
Maximum Memory16 GB
Green CompliantYes
Green Compliance Certificate/AuthorityRoHS
64-bit ProcessingYes
Number of Memory Slots4
Number of PCI Slots1
Audio Channels7.1
Gigabit EthernetYes
Number of IDE Interfaces1
Number of SATA Interfaces6
RAID SupportedYes
Number of Total Expansion Slots4
Network (RJ-45)Yes
Total Number of USB Ports8
Total Number of FireWire/i.LINK Ports1
PS/2 PortYes
Number of PS/2 Ports1
Total Number of Onboard USB Ports3
Total Number of PCI Express Slots3
Width243.8 mm
Depth218.4 mm
ManufacturerASUS Computer International
Product ModelP7P55-M
Product NameP7P55-M Desktop Board
Controller TypeSerial ATA/300, Ultra ATA/133 (ATA-7)
Manufacturer Part NumberP7P55-M
Manufacturer Website Address
Marketing Information

The P7P55-M Desktop Board delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards. Intel P55 providing improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability. Intel Lynnfield processor is one of the most powerful and energy efficient CPU in the world.