I've built 2 systems using a P5N-E SLI board, the same memory and Vista Home Premium. No issues whatsoever except when trying to get 4GB of that memory to run (I had to drop it from 800MHz to 667MHz in the end, even after playing with timings and voltages).
The board doesn't give the memory enough power by default (I think it gives 1.85V and the memory likes 1.9V - but I could've remembered that wrong). You should up it to what it says on the DIMMs themselves. It's very easy to do.
Asus boards, whilst they are very nice and still my favourite, are sometimes a bit of a bitch when it comes to memory. I've built maybe 50 or 60 rigs with Asus boards in the past 4 or 5 years, I've had very few problems overall. The problems that do arise are almost exclusively to do with memory (except for one which had a dodgy BIOS chip and needed RMAing). I've had very strange issues where some memory would work in a board with one type of CPU in, but not with another and all sorts of other weird stuff.
In my experience that memory is extremely reliable and OCs well too. It sounds like you have it configured slightly wrong. Don't worry about it not being on the qualified vendors list.
All the RAID/SATA stuff you've mentioned sounds perfectly normal to me, I don't see what you imagine the problem to be there. The only difficulty you could experience is when trying to install new HDDs, in which case you may have to make them into an array to be recognised (just a simple JBOD - which can be composed of a single disk).
I'd downclock your memory to 533MHz and run for a long period. See if you get any BSODs. If you do, and memtest (run for at least 4 hours) picks up no errors, then it's not a memory issue. It could very easily be some sort of driver issue, but that may be awkward to diagnose.
The board doesn't give the memory enough power by default (I think it gives 1.85V and the memory likes 1.9V - but I could've remembered that wrong). You should up it to what it says on the DIMMs themselves. It's very easy to do.
Asus boards, whilst they are very nice and still my favourite, are sometimes a bit of a bitch when it comes to memory. I've built maybe 50 or 60 rigs with Asus boards in the past 4 or 5 years, I've had very few problems overall. The problems that do arise are almost exclusively to do with memory (except for one which had a dodgy BIOS chip and needed RMAing). I've had very strange issues where some memory would work in a board with one type of CPU in, but not with another and all sorts of other weird stuff.
In my experience that memory is extremely reliable and OCs well too. It sounds like you have it configured slightly wrong. Don't worry about it not being on the qualified vendors list.
All the RAID/SATA stuff you've mentioned sounds perfectly normal to me, I don't see what you imagine the problem to be there. The only difficulty you could experience is when trying to install new HDDs, in which case you may have to make them into an array to be recognised (just a simple JBOD - which can be composed of a single disk).
I'd downclock your memory to 533MHz and run for a long period. See if you get any BSODs. If you do, and memtest (run for at least 4 hours) picks up no errors, then it's not a memory issue. It could very easily be some sort of driver issue, but that may be awkward to diagnose.