Thanks OP for the mods! I think they are going to do well. Everything seems much more streamlined, more open for airflow. I got the fan wall and the backplate, and purchased some arctic cooling fans- 2 X 80mm and 3 X 120mm. Hopefully this will cut the noise down considerably. It cant do any worse than what it was for sure. I have had this server since 2011, and didnt realize there was an entire thread devoted to my find. I posted this find in another forum and just about got run out because of all the "legacy" hardware. I found it while searching for the 3tb drivers for the SATA cards. Glad to know there is a thread devoted to it. Here are some pics of my mod. I have the one with the PCI-X slots and the Xeon board. Bought a matched pair of low power xeons, and added 8gb of RAM. Just waiting for the 3 120mm fans and a Seasonic X750 psu to arrive. It's been running great for over a year now. Couldnt be happier!
BTW if anybody with one of these is getting rid of the MB and happen to have a LGA 771 heatsink and cooler they would like to part with hit me up on pm....would like to take it off your hands. Thanks again.