Difference between P5E-VM & DO version

Trying to find out the difference in the Asus P5E-VM and the P5E-VM DO.

Chipsets and ports bro, P5E-VM HDMI has G35 and "The back panel offers both VGA and HDMI connections (DVI can be used via the included HDMI to DVI adapter), as well as analog and digital coaxial audio" Intel Graphics Media Accelerator X3500 integrated

P5E-VM DO Has Q35 chipset and support for legacy devices inc 1x Serial Port; 1x Parallel Port; 1x RJ45 Port, Video: Intel Graphics Media Accelerator 3100..

I own the HDMI version and the verdict is still open on it at the moment..

Griff