Got my GA-MA78GM-S2H board from Newegg yesterday.
Put in my Phenom 9500 in, with a very quiet $29 Scythe SCKC-1000 100mm Sleeve "KAMA CROSS" 3Heat Pipes CPU Cooler (http://www.newegg.com/product/produc...82E16835185045
). Runs at 93 deg F. at idle- not too bad.
Northbridge gets pretty hot- even with the newest F3e bios update. Ran the computer for a few min with the side cover off to make sure everything was Ok, then put the side cover back on. After running for about 30 min I took the side cover off again and noticed the Northbridge heatsink was cooler this time due to the crossflow in my case with the side cover on- 120mm exhaust fan in the rear and an 80mm inlet fan in the front. Could probably benefit from active cooling, but with decent case crossflow it doesn't seem to be a big issue.
I found that FreeNas doesn't support the onboard LAN chip RTL8111C, so I ordered the Intel PRO/1000 GT which FreeNas does support.
Using the MB report utility- my MB was dated Feb 11th 2008, AMD OC utility works fine with this board. I cranked the performance slider all the way up to max and no problems. I also used the Gigabyte supplied utility to OC the CPU to 2380 mhz from the stock 2200 setting and it's been rendering mp4 video for me for 10 hours now, so it seems pretty stable at 8% overclock.
One quick performance note to people who own this board- if you're using two sticks of RAM, put them in slots 1 & 2 and in the BOIS set them to "Ganged" to enable dual channel capability. For whatever reason, the BIOS "optimal settings" option leaves them at "Unganged" and the AMD OC utility reports them as "single channel" in this mode. Once you set them to "Ganged" in the BIOS, the AMD OC utility reports them as "Dual Channel".
As a real world comparison- last time I transcoded a 2 hour movie from mpeg2 to mp4 with Megiu on a AMD Athlon 4200+ Dual Core it took 18 hours total, with this MB and the Phenom 9500 the same 2 hour movie took 11 hours to transcode.