Ati Radeon HD 2400 XT blacks out monitor randomly

SOURCE: Samsung LCD monitor SyncMaster 1731

Problem with screen(LCD monitor), no problem with your system. replace it

SOURCE: monitor goes black suddenly

nvdia 6600 requires a minimum of 450 Watts of power to ensure that everything works properly. So if you want to continue using your nvdia card, an upgrade will be necessary.

If you want to test to see if it is the nvidia card, you need to remove the card physically from the system, then boot with the onboard video. This action will eliminate any conflicts between the two video cards. Before doing this you may need to go into device manager and make sure the onboard video card is not disabled.

Mandeep Singh

• 1184 Answers
• Posted on May 25, 2009

SOURCE: No video

HI,
You can go into the BIOS , under onboard devices. Change the primary video controller to PCI.
refer to the following screen
http://supportapj.dell.com/support/edocs/systems/dim4700/sm/syssetup.htm#wp1052347

If the cards are not detected on the board. Then the problem could be of the PCIe slot .


Thanks
Proton

SOURCE: Which NVidia graphics card can replace ATI HD 2400 XT

no
radeon is the best graphics card

SOURCE: When i install my ATi

Depending on the OS you are running. Check to make sure that the device drivers were installed correctly while plugged in to the on board.

To do this on Windows:
open Device Manager by right clicking My Computer and clicking properties. From there you can click Device Manager (if on XP click on Hardware Tab).

Once there, you should see a selection that reads Display Adapters

If it is installed correctly it should look like the one above (substituting in the ATI card)
If you see it and it has an ! or flag you need to update or install the drivers which you can get from http://support.amd.com/us/psearch/Pages/psearch.aspx?type=2.4.1&product=2.4.1.3.37&contentType=GPU+Download+Detail&ostype=&keywords=&items=20

Hope this helps