Asus P5Q review

Price when reviewed

The P5Q is an unassuming board with a modest name, but it’s actually one of the best-specified boards in this group.

Asus P5Q review

A case in point: where most boards offer either four or six SATA ports, depending on the south bridge, Asus has added a Silicon Image controller, leaving you with a whopping eight SATA ports and a choice of four RAID modes. And for external drives, you also get an eSATA and FireWire bracket – a convenience matched only by the Gigabyte GA-EP45-UD3R.

You also get Asus’ trademark ExpressGate environment, which lets you get online in a Linux-based environment within seconds of turning on your PC. We’re not sure how practical this is, but it’s nice to have the option.

Another distinctive feature is “Ai Nap”, a user-invoked power-saving mode. It shuts down hardware such as graphics cards and sound devices while leaving the CPU, network and hard disk active – useful for remote connections or long downloads. We measured the P5Q’s idle power consumption at 85W – on the low side for this group, although nowhere near the economies achieved by boards with integrated graphics.

Of course, this largesse has its limits. The P5Q has no multi-GPU support, nor can it boast onboard displays or controls – if that’s your bag, check out the Biostar TP45 HP instead. But the Asus BIOS offers plenty of latitude for those who like to fine-tune their systems, and if you get into serious trouble it can be restored from a USB flash drive.

The P5Q is also one of this month’s more expensive boards, but it’s less expensive than the similar Gigabyte GA-EP45-UD3R, and for the money you do get some nice luxuries.


Motherboard form factorATX
Motherboard integrated graphicsno


Processor/platform brand (manufacturer)Intel
Processor socketLGA 775
Motherboard form factorATX
Memory typeDDR2
Multi-GPU supportno


Motherboard chipsetIntel P45
South bridgeIntel ICH10R
Number of Ethernet adapters1
Wired adapter speed1,000Mbits/sec
Audio chipsetRealtek ALC1200

Onboard Connectors

CPU power connector type8-pin
Main power connectorATX 24-pin
Memory sockets total4
Internal SATA connectors8
Internal PATA connectors1
Internal floppy connectors1
Conventional PCI slots total3
PCI-E x16 slots total1
PCI-E x8 slots total0
PCI-E x4 slots total0
PCI-E x1 slots total2

Rear ports

PS/2 connectors2
USB ports (downstream)6
FireWire ports1
eSATA ports0
Optical S/PDIF audio output ports0
Electrical S/PDIF audio ports1
3.5mm audio jacks6
Parallel ports0
9-pin serial ports0
Extra port backplane bracket ports0

Diagnostics and tweaking

Motherboard onboard power switch?no
Motherboard onboard reset switch?no
Software overclocking?yes


SATA cables supplied4
Molex to SATA adaters supplied1
IDE cables supplied1
Floppy cables supplied1

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