I hope there is an Intel guide on the ICH10R that describes things like:
1. How to recover from an ICH10R (i.e., chipset failure) failure?
2. If two drives fail at once, more likely a software failure. How to diagnose?
3. What does "Failed raid volume detected. recover volume?" mean, what will happen if I poke 'Y'?
Where is the official Intel User Guide for this?
Is it maybe available under some other name?
I dont think you have information regarding the chipset failure.
Anyway here is the datasheet for the ICH10R, it is also known as Intel® 82801JR I/O Controller Hub (ICH10R).
Now regarding RAID, you will find most of the information from the link below, the datasheet, FAQs, Installation tips etc. are also available.
All the best,