Make sure all the motherboard power connector is hook up in the right manner. Sometimes hooking up the led header to like raid card created anomaly function for me. Even bad memory sticks will give you this kind of problems so keep experimenting changing to different memory modules.
Man it's great to read all the very good info on storage performance. I have the same controller Rocket Raid 620 on my workstation computer. Since I'm going to use it with single SSD drive might as well keep the controller.:)
Just get a cheap all in one HP printers like from your local Walmart. Try not to get multi cartridge ink printers because replacing them will be a pain and money.
http://www.walmart.com/ip/HP-Officejet-4620-e-All-in-One-Printer-Copy-Scan-Fax-Machine/20690264