Re: Dell optiplex gx620
Most dell Optiplex's have video card with them when they were sold from dell to companies. I have about 450 of them sitting in my basements, its just how they configure them. A DVI Y adapter will let you extend the monitors like you want to... BUT I am pretty sure you can't do it to VGA monitors. eg. a dvi to vga converter on the desktop then hooking up a vga y spliter to your monitors wont work.
Buying a real cheap PCI video card... like a 20 dollar one will let you hook up one monitor to each graphics card and have them show up extended. And no they don't have to match.