I have a Compaq Presario CQ5320F. It has a m2n68-la narra 6 motherboard in it made by pegasus (asus). I recently purchased an ATI Radeon HD 4890 video card, and a 600w psu. I'm running windows 7 64bit, and my BIOS version is 5.20. the issue i'm having is with disabling the on-board graphics on the motherboard. I'm fairly certain I installed the new video card in the correct manner. After installing the 600w power supply and getting it up and running, I went into safe mode to disable the on-board graphics driver. I then shut down my pc and inserted the new video card into my one and only PCI-E slot. upon booting the computer back up, instead of the plug-n-play working, the computer continued displaying on the on-board graphics. I then rebooted again, and went into my BIOS. I went to my primary graphics controller setting, and switched it to PCI-E, saved and exited. The motherboard STILL chose to display on the on-board graphics. I then shut the computer back down, removed the new video card, and decided to start over after removing my CMOS battery for a good minute or two. The same issue happened. My motherboard isnt capable of displaying on both the on-board graphics and the new graphics card, so i know i have to get the on-board graphics disabled before i can use the new card somehow. I've contacted HP and Asus both in an attempt to get a different version of BIOS that will actually do what I tell it to do, but according to both sources, there is neither an update available for my version, nor is there an older version of bios i can install on my motherboard. im absolutely lost at what to do here. My last resort will be sending the tower back to HP and having them replace the motherboard in hopes that the problem lies within my BIOS or PCI-E slot, since it is still under warranty. I would be extremely frustrated though to pay for shipping to send it to them, only to have the problem remain once i recieve the computer back. If anyone has any ideas on how i may be able to fix this issue without having to send my pc back to HP, i would greatly appreciate it.
I know this isnt specific to your particular model of motherboard, but this link is talking about a similar situation. Check out the last 2 posts. They seem to say that just by plugging in the video card the onboard one should be disabled. One poster also said to disable surround view in the bios. ASUSTeK Computer Inc.-Forum- disable on-board video
