"Overclocking"

As we've covered in the past, the Eee PCs from ASUS ship with a 900MHz Celeron M processor underclocked to 630MHz on a 70MHz FSB. We've used quotes with the term overclocking since we are simply restoring the CPU to its rated specification, not really overclocking it. There are a couple of methods for overclocking the Eee. One of those is SetFSB, an application that lets the user modify the FSB from within Windows.


Some users have had good luck hitting 900MHz and beyond with this utility. Our unit would not run above 800MHz, and experienced a crash at this speed after about 5 minutes.


The other option available is a utility called eeectl, which garnered much praise on the eeeuser forums. It's a very simple utility that runs in the taskbar, and rotates between displaying the current temperature and front side bus speed.


The selections include stock (70MHz FSB), Medium (85MHz FSB), and Full (100MHz FSB), as well as options to manually set the fan speed and the backlight level.


This utility allowed us to hit 900MHz and was rock-solid stable after 1 hour of Prime95 running Large FFTs and numerous games. What does this increase do for us?

3DMark
Overclocking Results

Alice
Overclocked

Wow - we see large gains in 3DMark, and Alice's average framerate at stock speed is now the minimum. The average framerate has risen by 60% over stock, and it's now quite playable long term. In addition to more CPU power, recall that the memory is also clocked 1:1 and is seeing a speed increase from the FSB. This in turn equates to video gains, as the GMA 900 is sharing system memory.

Noise/Heat

As we've previously noted, noise with the Eee is usually quite low and very unobtrusive even when the fan kicks to high. Using eeectl, we saw about 43C when idling at stock, and a max of about 68C after prolonged benchmarking periods. That's higher than we'd recommend if long-term functionality is desired, but for short-term speed boosts you should be okay running the CPU at its rated 900MHz.

Gaming/3D Performance Final Thoughts
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  • Nihility - Wednesday, April 23, 2008 - link

    What about batter tests of XP vs Linux? Considering what a mess there was with the reviewed EEE 900's this should be tested.
  • Nihility - Wednesday, April 23, 2008 - link

    Not so much. I was hoping computers like the EEE and the OLPC would help push linux but all these companies are quickly finding that it's easier to just ship with windows. Your customers like it, your developers like it and it's already been tested and proven so that saves on RnD. Maybe they still will help push linux in the long run but it sure doesn't seem like it for now.

    The EEE 900 with the bigger screen, even if it's more friendly to those older games it will come with a major drawback of even lower frame rates. Don't forget that. What the EEE needs is more power, for less power.
  • turkeyjob - Wednesday, April 23, 2008 - link

    Microsoft recently posted a video to their Ch9 website, of work they'd done to reduce the disk footprint on smaller systems. They demonstrated fully functional XP AND Office-2003 installed in 1.2GB of disk, on an EEE
  • amasephy - Wednesday, April 23, 2008 - link

    In regards to the Diablo 2 benchmark, the eeepc doing 25-30 fps is normal. D2 was capped at that for single player mode, which judging by the screenshots is how the game was benchmarked. More than likely it would perform better played on bnet.
  • Matt Campbell - Wednesday, April 23, 2008 - link

    Good point - I did the Diablo II tests at the very end of the article (actually as an add-on after it was written) and didn't try multiplayer mode.
  • 1up949 - Wednesday, April 23, 2008 - link

    I guess anything can be made to run anything if you cripple it enough...
  • Sc4freak - Wednesday, April 23, 2008 - link

    There seems to be something funky going on with the page navigation in the article. 3 pages are named "Windows XP", and you can't go to a previous page from them.
  • Matt Campbell - Wednesday, April 23, 2008 - link

    Thanks, fixed.

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