Firmware and drivers are all up-to-date.
I have an 128Gb OCZ Vertex 4 SSD for boot, running Win 7 64bit and a secondary 500Gb WD Blue HD for games.
When the WD arrived, I installed a temporary OS on that to test and didn't have any drops/resets/BSODs.
I then disabled TRIM on my SSD (see
here) which seemed to initially fix the problem, however I've been once again getting a few black-screen resets and a few idle-drops (looks like it goes into sleep-mode but hasn't and cannot be roused) so it's something I wish to look to fix.
The two common problems I have are:
1. After an initial start-up, at some point after about 5-10 minutes the computer will just die but once it has been reset, it is happy for the rest of the evening.
2. I've been playing a few games (booted via SSD, loaded via WD) recently and been having my games randomly crash on me, needing to reset the computer. A reset doesn't always fix for the evening. On one occasion with HL2, I had to reset a couple of times.
The only thing I haven't tried are different ports on the mobo and/or different cables.
However, my gut feeling is that it was either the board or the SSD causing the problem.