Hey hey, I'm at my wits end as they say about my Gigabyte 965P DQ6 rev3.3 GigaRAID/JMicron 36X controller. I have been Googling for help for a week now....if you even think you may have a helpfull suggestion please post a reply. Alright ..I have two new and verified healthy Western Digital RE2 (WD5000YS) enetrprise hard drives I want in a mirror raid array setup. The drives are in good condition. I have a single healthy Western Digital 150Gb Raptor main OS drive on the Intel SATA controller. The cables are brand new with which came with the mainboard. Other drives are a Sony floppy and new Pioneer DVR (SATA). I do not overclock right now. Ram is two Buffalo Firestix of 1Gb each in dual channel....ram runs only with 2.2 volts at any speed and doesn't boot the system otherwise..... was working with 2.175v - suspect. I have however been using a new stick of Kingston 512Mb value ram with no difference in the problem following. My array will not stay together. I have the latest drivers and management software installed from gigabytes site. I have tried the latest JMicron drivers and software from thier site and it was BETTER - more stability but it still goes whacky after a while. Whacky? Huge delay time with Windows in general ( I did reinstall a clean unmoddified Windows to troubleshoot ) and eventually a total lockup of Windows (Windows XP Pro btw...) and it hasn't been specific to any one program. When I reboot from lockup there is often a drive dropped from the array and not detected at all! I Hold the power button and power down completly and then the drive will reappear. It's worth mentioning my power supply at this point - PC Power and Cooling 750w and brand new. So ..I keep trying to rebuild the array but they same lag/delay in my system, locking up/freezing, and drive dropping then reappearing on cold boot. What in the hell could be the problem? I am thinking its the driver buggy or controller gone bad. Is there anything left to try? Update the JMicron BIOS or does that happen with a mainboard BIOS update? I have the F11 BIOS for the motherboard. Please go ahead and post becuase I have no idea what to try next. Thank you for reading all of this!