Any 4x or 8x AGP card.
You have not stated your motherboard model correctly. Some motherboards from mercury with the 845GL chipset support AGP, and some do not.
Because Your Local Area Network Card is not supported by your motherboard or not secured is in place
Get a new motherboard or a new graphics card.
normally the motherboard have 1 slot for video card.
A graphics card can be a separate, add on, card but the functionality can also be built into the motherboard to save space.
yes, but Aero may or may not be supported if your card doesn't have WDDM v.1.
Read the owner's manual for your motherboard.
LPX or mini LPX uses a riser card ( also called a bus riser or daughter card). LPX motherboard has the riser card near the center, whereas the NLX motherboard has the riser at the edge of the board.
Every PC has to have either graphics embedded into the motherboard or either a a dedicated graphics card that fits into an expansion slot on the motherboard. You can buy a motherboard without graphics, but you would need to supply a graphics card to go with it.
location on the motherboard into which a controller card for a peripheral device is stored
On your computer's motherboard.
The NLX form factor has a riser card on the edge of the motherboard.