Recently bought a Saphirre Radeon 9600xt 128mb to replace the onboard video I have been using on my ECS L7VMM3 m/b. When I place the v-card in however, windows will not detect it, even though it is receiving power and the fan is running. Booting up with the monitor cable into the card results in a black screen while I can still hear windows booting up properly. I thought it might be the card, but I also remembered how the Soundblaster 5.1 card I had put in 2 weeks earlier to replace the onboard sound, didn't work either. I have tried disabling the onboard sound and video, but to no avail. Clearing the CMOS did nothing as Windows is still unable to detect. I have the newest VGA drivers for my board I think and have tried deleting the onboard's driver's but still nothing has happened. Any Ideas anyone? All the parts are about 1 month old, including the PSU which is 400w only running mobo, HDD, and CR-RW.

You may not have the card completely seated. AGP cards require a firm hand. Also in the BIOS there should be a setting for the amount of memory to allot to onboard video. Set it to 0. If still not detected try using the find hardware wizard in control panel. One other thing that would probably help. Change the current display type to STD. VGA. That is on of the settings in the advanced video settings. ATI requires this anyway if you are upgrading your display. Which you are doing. If you have problems doing this post again and I will walk you thru.

Is it AGP Aperture Size I am looking for? It can only go down to 8mb. Hardware wiz does nothing. Can't figure out how to set display to standard VGA... Its seated on the m/b, I have done that countless times..

I found the setting for the onboard memory in BIOS, but when I set it to none, I get no screen at boot up and a series of *beeps*. When I plug the monitor cable into the radeon, it still gives me no picture. I also switched primary vid from PCI to AGP but it did nothing either.

Hi zuek: Is you video card an 8x or 4x, make sure your motherboard is 8x computable if video card is 8x. An 8x slot can run a 4x & a 4x slot can run a 2x, make sure you don't put a 2x card in a 8x AGP slot or it might damage motherboard. Did you set AGP in bios, try you old on board video to see if it still works, if not you might have damaged motherboard. If on board video works then you could have a bad video card. Good luck, Z

I could not get my ATI radeon 9600 ultra card to work until i went to the ATI site and downloaded the new video card drivers. The disc that came with the card would not work. You need to download the new drivers to a disc from the ATI site and install your video card with them. Thats the only way i could get my Radeon video card to work.

You may have a motherboard jumper to enable/disable either the onboard or the AGP slot. Also Response #4 has a valid point. The voltage requirements for AGP 8x, 4x, 2x are different and not all Video cards support all voltages. Check your MB manual and the manual for the video card.