Is an x8 AGP video card compatible with a x4 AGP slot??

Me and my classmates are developing a Computer Aided Instruction(CAI) for our multimedia project. Our topic is the subject multimedia itself. Can you state websites where i can see examples. It...

My unit keeps on restarting by itself and i dont know why. It often restarts when I play games. Please help me!!! What could be the problem?

Why cant my unit boot from CD? but from other cd's it can. what should be the problem?

Yup! It's a newly installed game but there are no problems in meeting the system requirements of the game. My power supply provides 550W i think.

Every time I play my installed games, my unit keeps on restarting. Is it because of the Video Card? Please help me...

My graphics card is a 256mb NVIDIA GeForce fx 5500..

do you think that this has something to do with my OS not passing Microsoft Genuine??

yup.. already tried clicking "continue" but still the same problem..

i tried to install the driver but it only says "it did not pass windows logo testing..

and it shuts down when im only playing a game...

but my system keeps on shutting down so i figured it must be the video card..

does not passing windows logo testing affects the performance of the graphics card?