CPU & FSB Overclocking Results

Front Side Bus Overclocking Testbed
Processor: Pentium 4 Prescott LGA 775
840EE Dual Core 3.2GHz
CPU Voltage: 1.4750V (1.4000V default)
Memory Settings: 3-2-2-8 at 680MHz, 3-3-3-8 at 720MHz
Memory Voltage: 2.1V
NorthBridge Voltage: 1.50V
SouthBridge Voltage: 1.05V
Cooling: Intel 840EE Heat Sink
Power Supply: OCZ Power Stream 520
Video Card: 1 x XFX 7800GTX OC (PCI Express)
Maximum CPU OverClock: 255fsb x 16 (4087MHz) +27%
Maximum FSB OverClock: 270fsb x 14 (3786MHz) +35%

This board is a very good overclocker considering that it is designed as a workstation platform. At this overclock setting, the system was able to complete all of our benchmark test suites three consecutive times and run Prime95 and SuperPI without issue. We were able to overclock the FSB to 270 at the14x multiplier, which resulted in CPU operation of 3786MHz and we were able to complete the benchmark test suite.

Memory Stress Testing

Memory stress tests look at the ability of the Asus P5WDG2-WS to operate at the officially supported memory frequencies of 667MHz DDR2, at the best performing memory timings that the Corsair CM2X512A-5400UL revision 1.3 will support.

Asus P5WDG2-WS
Stable DDR667 Timings - 2 DIMMs
(2/4 slots populated - 1 Dual-Channel Bank)
Clock Speed: 200MHz (800FSB)
Timing Mode: 667MHz - Default
CAS Latency: 3
RAS to CAS Delay: 2
RAS Precharge: 2
RAS Cycle Time: 8
Voltage: 2.1V

The Asus P5WDG2-WS was completely stable with 2 DDR2 modules in Dual-Channel at the settings of 3-2-2-8 at 2.1V.

We will now install all four available memory slots that are usually more strenuous on the memory subsystem than testing 2 DDR2 modules on a motherboard.

Asus P5WDG2-WS
Stable DDR667 Timings - 4 DIMMs
(4/4 slots populated - 2 Dual-Channel Banks)
Clock Speed: 200MHz (800FSB)
Timing Mode: 667MHz - Default
CAS Latency: 3
RAS to CAS Delay: 3
RAS Precharge: 3
RAS Cycle Time: 8
Voltage: 2.15V

The Asus P5WDG2-WS was completely stable with 4 DDR2 modules in Dual-Channel at the settings of 3-3-3-8 and only needed the voltage increased to 2.15V. This is a very good accomplishment and continues to show off Asus's engineering capability.

ASUS P5WDG2-WS: Features Asus P5WDG2-WS: Presler Overclocking
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  • Gary Key - Tuesday, December 6, 2005 - link

    We are still working on a way to properly show this in the graph engine.

    Thank you.
  • imaheadcase - Tuesday, December 6, 2005 - link

    I saw this article 2 times put up already. anyone else seeing this?

    Last half a dozen reviews show up, i see people comment on them, then they disappear and come back latter. weird
  • wilburpan - Monday, December 5, 2005 - link

    According to your Ethernet tests:

    Gigabyte GA-G1975X: 951.4 Mb/s
    Asus P5WDG2-WS: 950.3 MB/s

    Gigabyte GA-G1975X: 16.04% cpu utilization
    Asus P5WDG2-WS: 23.78%

    And in your text:

    "The Marvell 88E8062 PCI Express Dual LAN solution exhibits slightly higher throughput along with very good CPU utilization rates. The Broadcom 5789KFB option on the Gigabyte board offers excellent throughput, but at a slightly higher CPU utilization than on other solutions."

    With the data you have, it seems the exact opposite conclusion should be made.
  • Gary Key - Tuesday, December 6, 2005 - link

    Hi,

    Unfortunately, our document engine had a mind of its own last night when the article went up the first time as it was not completed yet. The last couple of pages are correct now along with additional information that was not available last night. We had to wait on Asus to provide shipping drivers and Marvell firmware which changed the original scores (went down but stability increased). The new graphs were correct but my text changes had not caught up yet. We have been informed by Asus the 88E8066 chipset will actually be used on the board in the near future.

    Thank you.
  • BrownTown - Tuesday, December 6, 2005 - link

    interesting stuff for the Presler there, I eagerly await your new article :p
  • DanDaMan315 - Monday, December 5, 2005 - link

    yay
  • Vegito - Tuesday, December 6, 2005 - link

    Juicy.. I just need these pcix + pcie board for an amd machine.. :)
  • Gary Key - Tuesday, December 6, 2005 - link

    We highly suggested this to Asus. ;->
  • Pirks - Tuesday, December 6, 2005 - link

    Many many years from now we'll get another Asus or any other r333w1 mobo (DFI LanParty Ultra 3.0? :) with quantum 1000 GHz CPU, UltraWideFirewire 24000, USB 8.0, built in laser keyboard link and wireless 80" display link... and a LOT more... and....

    ...AND...

    ...and A FLOPPY CONNECTOR!!!
    and AN LPT PORT!!!!!
    and PS/2 JACKS!!!!!!
    AND TWO, LISTEN TO THIS - !TWO! COM PORTS!!!!

    bwahahahahahahaaaaa

    I just can't look at all the museum artefacts on these so called "professional" mobos, when Macs have only USB and FW as their standard interfaces for years!

    Yea I know Mac hardware is sucky/expensive, no cool gaming and stuff, but... I really understand well some of my Mac using buddies when they visit me while I'm working on one of my PC's "professional" mobos (upgrading heatsink or something), and they see one of these huge LPT connectors and they're like "WTF???!?!?"

    I know noone cares about this stuff, noone will ever make decent and inexpensive legacy free PC mobo, just wanted to vent it off... thanks :)
  • Saist - Tuesday, December 6, 2005 - link

    obviously you have never tried to run a data center, or ever bought hardware on a budget, nor that you run windows...

    or are you conviently forgetting that Windows has the worst in-box hardware support available and that to run many SATA drives requires installing drivers as though they are SCISI devices rather than on-chip devices.

    Or that not everybody can afford to upgrade to a new laser jet / ink jet / Hp OfficeJet at every new release, and that for many a business the stock dot matrix offers the best price/performance and there is no reason to replace a perfectly functioning dot/matrix printer for something that costs a lot more to run.

    or that usb support for keyboards is a little spotty in the Microsoft bootloader if you do try to run multiple versions of windows

    Or that many older devices still require the com ports.

    Sure, if you are building a brand new computer and have no hardware you ever intend to run again, running a legacy free system is a good idea.

    But, when you only have 5% of the market at best...

    it just doesn't make sense.

    Sorry, but I find the laughter and your comments to be so far off base... I can only sigh and wish I had your budget to spend.

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