A-Tech 8GB KIT (4 x 2GB) for Asus M3 Motherboard Series M3N78-EM, M3N78-EMH HDMI, M3N78-VM DIMM DDR2 ECC Unbuffered PC2-4200 533MHz Dual Rank Server RAM Memory at Amazon.com
A-Tech 2GB Stick for Asus M3 Motherboard Series M3A78 (Non-ECC) M3A78-EM (Non-ECC) M3A78-EMH HDMI (Non-ECC) M3N78 Pro (Non-ECC) M3N78-EM (Non-ECC) M3N-HT DIMM DDR2 Non-ECC PC2-3200 400MHz RAM Memory at Amazon.com
ASUS M3A78-EMH-HDMI and M3N78-EMH-HDMI Ready
Asus M3N78-EMH AMD AM2+ NVIDIA GeForce 8200 Micro-ATX Motherboard
Asus M3N78-EMH HDMI User Manual | 102 pages
For ASUS M3N78-EMH HDMI Socket AM2+/AM2 DDR2 VGA+DVI+HDMI Motherboard | eBay