can i use my internal graphic card as a external graphic card?

In a slimline PC you can install low-profile graphics cards, just not full-height cards.

In theory something similar to what you're thinking of might work, but I don't know of any extender cables like that for PCI-Express slots (and PCI is too slow to be useful). And you'd still have the issue of sufficient power.

By the way, really good external graphics adapters for laptops aren't USB- that's too slow. They use the Expresscard slot. Thats what the ViDock uses, it's also what the discontinued Asus XG station used.

http://www.villageinstruments.com/tiki-index.php?p...

Anyway, the REAL solution for slim computers- transplant everything (motherboard, hard drive, RAM, DVD burner etc) into a standard ATX case, so there's room for any graphics card you want, along with any standard ATX power supply. You can get a great quality 550-600W ATX power supply from Corsair, Antec, XFX or OCZ for less than some proprietary 300W slimline psus.

As long as you stick with the small/slim chassis, you're limited to fairly low-end cards with low power draw.

Jeez what a hassle.

what do you want a fast pc or a small one?

(Pick one)