Mainboard MK20, MK20N

After installing the driver for ATI series AGP 4x VGA card on MK20/N mainboard, why do I get a blank screen? Then no matter what I do, system powers up but still blank screen.

Please follow the following steps to avoid the problems :

• 1. Disable AGP 4x mode or change to 2x mode in Bios
• 2. Install O.S.
• 3. Install VIA 4-in-1 drivers (4.29V or later)
• 4. Install ATI VGA driver
• 5. Enter to O.S.
• 6. Restart the system and go back to Bios Setup to enable AGP 4x mode.

• 1. Short jumper JP1 1-2 to enable USB power on function by H/W.
• 2. Set 'Power on by USB' to "Enable" in Power Management Setup/Wakeup Events in Bios Setup program.

Please "Disable" 'USB keyboard support' in Advanced Chipset Features under Bios Setup program.

Links concerning this chapter:

• Mainboards with Socket A MicroATX-Form Factor
• Brief Tabular Survey
• High resolution images Socket-A-Mainboards MicroATX form factor