You do not really ned to increase the aperture size if it is the performance you are after. You can also learn a lot of new & better performance tweaks at www.overclock.net they are the beasts of overclocking and tweaks.Dear XXXX,
Thank you for contacting HP Total Care.
I understand from your e-mail that you wish to have the steps to
change the Aperture size on your PC.
I would like to inform you that your PC does not have the option to
change the Aperture size for the AGP cards from the BIOS. Also BIOS
update will not provide any new features to your BIOS settings.
If you are experiencing any particular issue with your PC, please
do reply to this e-mail. We will be glad to assist you.
HP Total Care