Asus P5K P35 Socket 775 Motherboard

Introduction & Specifcations


Only back at the beginning of May we were given information that Intel had pushed forward the release date of their latest chipset. Codenamed 'Bearlake', the P35 chipset is the first of Intel's chipsets to support the recently released DDR3 spec (while still maintaining support for DDR2) and upcoming 45nm CPU's along with the ICH9 southbridge and a native 1333Mhz front-side bus. Asus have always been pretty quick to the market with motherboards based on Intel's latest chipsets, and it's no surprise to see the rather prompt arrival of their P5K and P5K3 Bearlake-Based contenders.

With the P5K still being based around the DDR2 platform (where as the P5K3 is DDR3 ready), users are offered the chance to upgrade to the latest 45nm processors while still utilising their "old" DDR2 memory. In fact, in its current state, DDR3 actually offers very little performance benefits over DDR2 due to it's extremely loose latencies. Much the same phenomenom was seen when DDR2 entered the market, with the original DDR modules outperforming DDR2 in most benchmarks.

Asus do have a bit of an issue on their hands however: The P5B and 'Commando' P965 based boards are well known for being champion overclockers and the motherboard of choice for many benchmarkers and enthusiasts. Will the P5K be able to continue the legacy of its elder brother? Today I'll be finding out by pitting them head-to-head.


With the Bearlake P35 chipset being such a new arrival to the scene, let's first take a look at how it's features compare to some of its predecessors:

  P35 Chipset
P965 Chipset
975X Chipset
Supported CPU's
Pentium 4
Pentium D
Core 2 Duo
Core 2 Quad
Core 2 Extreme
*Upcoming 45nm CPU's*
Pentium 4
Pentium D
Core 2 Duo
Core 2 Quad
Core 2 Extreme
Pentium 4
Pentium D
Core 2 Duo
Core 2 Quad
Core 2 Extreme
Official FSB Speed
Up to 1333mhz
Up to 1066mhz
Up to 1066mhz
PCI-E/GPU Support
16x / 4x
16x / 4x 8x / 8x
Memory Support
SATA Drive Support
IDE Drive Support
0 (3rd party controller often used)
0 (3rd party controller often used) 1

As we've already discussed, the P35 builds on the features of the P965 chipset by adding DDR3 support, 45nm CPU compatibility and an increased "official" FSB speed. In terms of motherboard features, the following chart has been extracted from Asus' website:

LGA775 socket for Intel® Core™2 Quad / Core™2 Extreme / Core™2 Duo / Pentium® Extreme / Pentium® D / *Pentium® 4 Processors
Compatible with Intel® 05B/05A/06 processors
Support Intel® next generation 45nm multi-core CPU
*This motherboard supports FSB 1333/1066/800
Intel® P35 / ICH9R with Intel® Fast Memory Access Technology
Front Side Bus
1333 / 1066 / 800 MHz
4 x DIMM, max. 8GB, DDR2 1066*/800 / 667 MHz, non-ECC, un-buffered memory
Dual channel memory architecture
* The chipset officially supports the memory frequency up to DDR2 800MHz. Tuned by ASUS Super Memspeed Technology, this motherboard natively supports up to DDR2 1066MHz
Please refer to or user manual for Memory QVL.
Expansion Slots
2 x PCI-E x16 (blue @ x16 mode, black @ x4 or x1 mode) supports CrossFire Technology
2 x PCI-E x1
3 x PCI
- 6 x SATA 3.0 Gb/s ports
- Supports RAID 0 and 1
JMicron® JMB363 PATA and SATA controller
- 1 x UltraDMA 133/100/66 for up to 2 PATA devices
- 2 x External SATA 3.0 Gb/s port (SATA On-the-Go)
- Supports SATA RAID 0,1 and JBOD
Dual Gigabit LAN controllers, featuring AI NET2
Marvell88E8056® PCI-E Gigabit LAN controllers
RealtekRTL8110SC® PCI Gigabit LAN controller
Wireless LAN
54 Mbps IEEE 802.11g and backwards compatible with 11 Mbps IEEE 802.11b
- Software Access Point mode
- Station mode : Infrastruceure mode and Ad-Hoc mode
ADI® AD1988B 8-channel High Definition Audio CODEC
- Coaxial / Optical S/PDIF out ports at back I/O
- ASUS Noise Filter
IEEE 1394
Agere® FW322 1394a controller supports 2 x IEEE 1394a ports (one at midboard; one at back panel)
10 x USB 2.0 ports (4 ports at mid-board, 6ports at back panel)
ASUS AI Lifestyle Features
ASUS Quiet Thermal Solution:
- ASUS AI Gear2
- ASUS 8-Phase Power Design
- ASUS Fanless Design: Heat-pipe solution
- ASUS Fanless Design: Stack Cool 2
- ASUS Q-Fan 2
ASUS Crystal Sound:
- ASUS Noise Filter
- ASUS Q-Connector
- ASUS O.C. Profile
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS AI Slot Detector
ASUS [email protected]:
- ASUS WiFi-AP Solo
Other Features
ASUS MyLogo 3
Multi-language BIOS
Overclocking Features
Intelligent overclocking tools:
- AI NOS™ (Non-delay Overclocking System)
- ASUS AI Booster utility
Precision Tweaker:
- vCore: Adjustable CPU voltage at 0.0125V increment
- vDIMM: 16-step DRAM voltage control
- vChipset: 4-step Chipset voltage control
SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 800MHz at 1MHz increment
- Memory tuning from 667MHz up to 1333MHz for DDR2
- PCI Express frequency tuning from 100MHz up to150MHz at 1MHz increment
Overclocking Protection:
- ASUS C.P.R.(CPU Parameter Recall)
Back Panel I/O Ports
1 x PS/2 Keyboard
1 x S/PDIF Out (Coaxial + Optical)
2 x External SATA
1 x IEEE1394a
2 x RJ45 port
6 x USB 2.0/1.1
1 x WiFi-AP Solo antenna jack
8-channel Audio I/O
Internal I/O Connectors
2 x USB connectors support additional 4 USB ports
1 x Floppy disk drive connector
1 x IDE connector
1 x COM connector
6 x SATA connectors
1 x CPU Fan connector
4 x Chassis Fan connector
1 x Power Fan connector
1 x IEEE1394a connector
Front panel audio connector
1 x S/PDIF Out Header
Chassis Intrusion connector
CD audio in
24-pin ATX Power connector
2 x 4-pin ATX 12V Power connector
System Panel(Q-Connector)
16 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3
WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE
UltraDMA 133/100/66 cable
FDD cable
4 x Serial ATA cables
1 x 2-port Serial ATA power cable
I/O Shield
User's manual
ASUS WiFi-AP Solo manual
3 in 1 Q-connector
1 x 2-port USB2.0 / 1-port IEEE1394 module
ASUS WiFi-AP Solo omni-directional antenna
Support CD
ASUS Update
ASUS WiFi-AP Solo Wizard
Anti-virus software (OEM version)
Image-Editing Suite
Form Factor
ATX Form Factor, 12"x 9.6" (30.5cm x 24.4cm)

The P5K Deluxe comes with all the features we've come to expect from Asus' Deluxe line of motherboards. As with the previous P5B line, the P5K uses JMicron's JMB363 controller to make up for the lack of PATA functionality on the southbridge and the use of 8-Phase power along with a black PCB is still one of the defining features between the Deluxe and standard models.
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Most Recent Comments

04-06-2007, 13:22:09

Great review Jim, article linked @ XS!


04-06-2007, 13:24:58

Nice review, god things are moving on so fast, soon DDR3 and heres me just upgraded and still on DDR1 lol.Quote

04-06-2007, 13:32:51

Originally Posted by name='FragTek'
Great review Jim, article linked @ XS!

Cheers dude Quote

04-06-2007, 13:45:16

looks awsome

cool review Quote

04-06-2007, 13:59:03

Great review jimbo

Think I'll wait a while to upgrade tho Quote

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