Hello! Can I install any an nvidia graphic card in my computer?

It's iffy. Most Emachines that I've seen lack any sort of graphics expansion slot. Have you tried opening the computer to see if you have a PCIE slot?

You need to figure out what kind of expansion slots you have in your computer. Chances are you will have either a PCI or PCI-E slot. If that is the case then you will have to find an nvidia card with the corresponding connector.

Keep in mind your system seems to have low profile expansion slots as well (not positive you will have to double check). If they are, then make sure to also got a card that is low profile ready.

So no you can't just install any nvidia card. You need to find if you need a PCI, or PCI-E card, and if it needs to be low profile.

I think that CPU-z (download it) will tell you if you have a PCI-E slot available.

HI
I have PCI Express slot .
thanks.

Can i Install Galaxy GT430 PCI-E 2.0 1GB 64-Bit DDR3, 700MHz / 666MHz
thanks.

you can, but how good do you want it to be? what resolution, what games?