Yo, hears my two penneth. I have the following Abit AN8 F4t4l1ty SLi SATA Disks (1 system, 2 stripe raided) 2 x 1GB Crucial Ballistix Tracer Ram AMD 64 FX-55 I was trying to install windows last night, several times, I loaded up the drivers and just when it says "Now starting Windows" (or words to that effect) the machine reset. I tried a number of ways of implementing the raid controller and sata controller to no avail. Eventually, I stripped out various components from being recognised. The raided sata disks went, the second FX7800 went back into non SLi mode, still couldn't get it to work. Then I dropped out one of the RAM sticks. It worked. I thought, fecking great, duff memory. Installed windows, then restarted, and reinserted the stick. CLICK. Reset as soon as windows started to get underway. So I knew it was my ram, or a problem linked to my ram for sure. I then checked the BIOS for the RAM settings. On the AN8 Fatality SLi, the default for ram timings is 'Auto'. I changed this to 'By SPD' and tried to reboot again with both sticks. Tada, I could get into windows run app etc etc. However, this isn't the end of the story. I decided to install the game I bought for my new machine and refused to play on my last machine. Battlefield 2. Installed, loaded and played the first single player map. Seemed to work ok (well actually in SLi mode pretty **** fine to be honest!) As the game went to change the round, click, it reset again!!!! I am going to have a look at the actual CAS latency settings tonight and see if they need fiddling. But I really wasn't sure if this was a RAM or a Mobo problem. after reading this I would look more at the mobo, but I just am not sure that after 3 mobos and you are still having problems that Abit could get it soooooo wrong!?!?! Any thoughts? Akira