PowerVR Kyro II tweak guide

One of the success stories of the year besides NVIDIA has been PowerVR; reportedly selling over 1 million Kyro 1/2 based Graphics Cards. This guide will take you through setting up your PC for best compatibility with these Graphics Cards & then through the mass of options available in the Drivers to get the most out of Games/Applications with them.

Drivers/ Troubleshooting/ BIOS Settings

Initially you should ensure you have the latest Drivers installed for your Graphics Card. You can find links to Manufacturers of such Graphics Cards on our Drivers page, although should you wish to stick with reference Drivers then go to PowerVR Driver page instead (In most instances the PowerVR Drivers will be the first to be updated & most Manufacturers will only really be changing logos when they release new Drivers). To a lesser extent you may also want to check into getting any available BIOS update for the Graphics card, although these only fix certain issues & none currently have been released that fix any problems with Games/Applications or improve performance.

Be sure to install Microsoft’s have DirectX 8.1 as well.

It is also highly important to have the latest Drivers for your Motherboard installed as well, particularly the AGP Drivers (If you have an AGP Kyro Graphics card at least). You can find links to updated Motherboard Chipset Drivers on OS Updates. Installing any available BIOS update for your Motherboard may also be of some help.

In the system BIOS it is recommended to disable the following settings, if available - Hidden refresh, Byte merge, VGA palette snoop, DAC snoop & any Caching/Shadowing options, e.g. Video BIOS Shadowing. The Video Memory Caching Mode should be set to UC rather than UCSW also. If you have a Kyro 2 Graphics card set the AGP Transfer mode to AGP X2 at most as it doesn’t support AGP X4 (This mode can be used with Kyro 1 Graphics cards however).

Should you experience problems between the Kyro & any Game/Application check the Developers website for any patches, or apply some of the compatibility settings as described in this guide.

For further information/tips check out the ParaKnowYa FAQ, which covers other potential issues/queries you may have or contact your Manufacturer of Technical support.

Display settings

Click on Start, Settings, Control Panel. Open Display, then select the Settings tab, then the Advanced button. Each of the following sub sections will describe what can be done in the available tabs.


Select the Display tab. Although you might not think it, if you adjust your brightness levels correctly you can improve visual quality a lot. You may be able to reduce the effect of colours/textures being too dark, or too washed out this way.

The Centre, Horizontal Size & Vertical Size sections may be used to adjust the position & size of the current display window. Most Monitors however have built-in controls to allow you adjust this also.

Coarse Adjust. When Ticked this will allow for greater movement distance of the screen when using the Centre controls, this can make more precise changes awkward however.

Gamma Correction. This is an alternative method to adjust the brightness level of your monitor rather than using the built-in Gamma controls most Monitors already have. Tick this setting if you wish to enable using the Drivers Gamma Correction ability. This may be of some use if you can’t adjust the brightness/darkness level of Games, although it should be best to leave it Unticked at all other times.

Now select the Advanced button. This contains more in-depth options for tuning your display output.

Tick the Advanced Settings option in order to adjust the settings available here.

Gamma. This slider can be used to adjust the RGB colour intensity. Move the sliders (Or slider) to the Right to increase this level, this can reduce detail by brightening up the image too much & vice versa. Tick the Link option if you wish any adjustments to be made to the Red, Green & Blue colour sliders globally, or Untick the setting to independently adjust them.

Contrast. Use this slider to adjust the contrast level of your display. Move the slider to the Right to the image brighter & vice versa. The brighter the image the more washed out it can appear. Adjust this to suit your own needs.

Brightness. This slider controls the brightness (glare) level. Move this slider to the Right to increase the brightness level, which can cause the image to appear washed out if moved too far & vice versa. Adjust this as you see fit.

Use the Reset button should you wish to restore the default options for these controls. Once finished, hit the Ok button.


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