RAID 5 problems with ICH8R

[idata]

Hi,

I'm having lots of problems with my RAID 5 array on my motherboard's ICH8R chipset. I keep on getting errors on disks and having to go through a rebuild.

I have kept track and at first I thought it was one of the SATA channels on the board was bad, so I moved that drive to another port, but with no luck. I have noted errors on drives connected to every port that has a drive attached.

I'm curious about what I can do next to determine if it is the motherboard going bad or if there is some other cause.

Any and all suggestions are welcomed!

[idata]

Are you overclocking?

Are you using Rapid Storage Technology?

http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=2101&DwnldID=18859&ProductFamily=Chipsets&ProductLine=Chipset+Software&ProductProduct=Intel%c2%ae+Rapid+Storage+Technology+(Intel%c2%ae+RST)&lang=eng http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProdId=2101&DwnldID=18859&ProductFamily=Chipsets&ProductLine=Chipset+Software&ProductProduct=Intel%c2%ae+Rapid+Storage+Technology+(Intel%c2%ae+RST)&lang=eng

[idata]

I am not overclocking at present. Here is what happened:

1. I had a RAID 0 array on this system and a drive failed (RAID BIOS showed "errorr occurred" for one drive) so the PC was not bootable.
2. I purchased 4 new drives and built the RAID 5 array.
3. It started having a problem every once in a while, but I thought was the one SATA port, so I moved that drive and thnigs looked OK
4. I then overclocked and had lots of problems
5. I went back to stock clocking and I'm still having problems

I am not using RST, I am using Matrix Storage, should I be using RST instead of Matrix RAID?