I have a DP55WG with an i7-860 processor and a RAID 10 array. I just upgraded to BIOS version 5893, but this problem occurred before I upgraded as well. I am running Windows 7 Ultimate, 64-bit. I am using Intel Rapid Storage Technology version 126.96.36.1994 to manage my array in Windows.
Sometimes when I do a restart, I see "Missing operating system" and a freeze just after an apparently normal loading of BIOS and the RAID firmware.
Once I get my heart beating again and reboot, the reboot is normal except that sometimes I get the screen that asks me if I want to boot into safe mode, normal, etc. I choose "boot windows normally" and it boots normally, but probably a little more slowly. Then everything seems normal.
After this experience I run a verify of my RAID array and I find 25-50 verification errors, but no physical errors in my array.
Although this seems to happen for no apparent reason, there may be a reason. In one case it followed a crash of one of my flakier applications, although the reboot that failed was a few minutes after I closed the flaky application. In another case, it happened after I decided to restart before I was fully booted into Windows.
I’m thinking that it may be a timing issue with the write-back cache and I may be OK if I disable the write-back cache. But I also may be wrong and that would slow down my machine. So before I do that I am hoping to get an opinion from someone with more experience and/or knowledge than me.
Please help if you can.