I have purchased Monitor is a Dell S2240L 21.5 inch LED Backlit LCD Monitor Max resolution 1920 x 1080 pixels, HDMI with mother board Gigabyte GA-78LMT-USB3 Motherboard and processor AMD FX 8350 AMD FX Processor Black Edition.
After installing Windows 8.1 OS. I noticed that the resolution was wrong (it was 1400 x 1050 pixels and my monitor max resolution is 1920 x 1080 pixels),I went To device Manager and I opened the Display Adapters and It said: Microsoft Basic Display Adapter.
I tried everything inserting my driver cd and installing all drivers, didn't help anything..
Integrated Graphics card: ATI Radeon HD 3000 graphics
Full display details: