We need the model number to tell you that.
just plug it in the memory card slot
No it doesn't. The 7740g motherboard variants will fit and some have graphics cards built in.
No.
The HP a1230n does not have a dedicated graphics card slot. It has three PCI slots and one PCI Express slot. Any of these could be used for a graphics card (the PCI Express is the best option) or other peripherals.
You just have to find out if its a PCI, AGP or PCI-E slot graphics card, go to the store, buy one that matches your slot type. If your graphics card is intergrated you can download a program called Everest home edition and find out what slot it is.
Accelerated Graphics Port (its a graphics card slot)
NO. If you have a pci-x slot, probably it is a server, and you want to upgrade your graphics card, you can buy a PCI card and plug it into your PCI-X slot. It should work probably.
No.
I suppose it is 2Gb, because there are two slots and you can't install more than 1Gb for each slot
A processor of a computer does not interfere or limit to which kind of graphics card you can add. To find out which kinds of graphics card you can add, you need to open up your computer and find a x16 pci express slot. To find the slot you have to look around your motherboard to find a spot where it says x16 pc-express slot. If you have this slot, you should be able to add a graphics card. P.S. There are other factors to consider when adding a graphics card. For more information read below (related links).
It is used to add an internal Graphics card on the AGP slot
Very simple just remove it from the slot it is in.