Overclocking the netBook Pro

[sterling]

I've installed the XCLKCFG utility from the Sigmarion III and it also works nice on my netBook Pro.
It is able to clock up significantly to >700MHz.
The BMQ tests show that an overclocked netBook Pro is faring very well. The netBook Pro seems to suffer from a slow video. All the other figures are inline of all clocked up PXA255 processors.

[stolkjo]

Where is this available?

Thanks

[sterling]

Software can be downloaded from: http://sigmarion3.org/?FAQ
Download only xclkcfg.exe and not xclkcfg2.exe

The soft is japanese and was originally designed for Sigmarion III, but it also works for Psion netBook Pro.
You can recompile the stuff and change it to English (the source is included!).

For netBook Pro users only the following clock settings proved to work:

100 Mhz, 200Mhz, 300MHz, 400MHz, 600MHz, 709MHz and 792MHz.

All other settings will not work and freezes up your device and require a soft reset.
If you try 133MHz then you must hard reset the machine.

It is of course on your own risk!
You can run benchmarks with the tool found on: http://homepage2.nifty.com/qta/bmq/bmqprog.htm.

Run the tests and you'll notice that the draw part is not a performer and kills the overall rating of the machine witht the others.
You can compare the performance with the other boxes:
http://homepage2.nifty.com/qta/bmq/index.htm

[vitualis]

We've had those benchmarks before... and it seems that the NB Pro suffers from the same performance problems as the older Handheld PCs (i.e., Windows CE 2/2.11/3 based devices).

I hypothesise that the NB Pro has a weak video acceleration chip and the strain of drawing the relatively large screen drains CPU cycles.

Compared to the Sigmarion (in terms of benchmarks) which is very similar in terms of hardware specs, the NB Pro stinks.

Regards.

[sterling]

You are correct the Video is bad and is not up to the latest standards.
However thanks to the overclocking software, all the others (integer, floating etc...) are performing faster.