[Solved] They all keep Dying!

Great name for a horror movie - if I wasn't in it!

I have a Abit AW8D Mother board with the Intel® 975X / Intel® ICH7R Express Chipset

I started out with:

2 WD 250gb system drives on SATA 1&2 RAID 1
2 WD 500gb system drives on SATA 3&4 RAID 0 (VIDEO / GRAPHICS)

1st year - all was well -

Then 1 of the RAID 0 drives dies (goes missing) - replaced under warranty - oh well, it happens.
I put the new one back - but I got rid of the RAID 0 config - I found the speed not worth the hassle.

A few months down the road - one of the RAID 1 drive goes M.I.A. - darn WD! So I go out and buy a new Seagate - planning to return the other WD and use it in something else.

Then, another one of the 500 goes out - not in RAID config -
Then, the other WD in on Raid 1 goes down...
Then a "heat warning" alarm goes off via Abit Guru (not sure what chip - but I bet it is the ICH7R)
Then, finally the last 500gb fails to show up....

Now I am suspicious (ok I'm thick!) - but I recall that the MB has 2 more SATA ports, 5&6, attached to Silicon Image Sil3132 PCIE SATA 3G RAID controller -

Guess what? All those BAD drives show up fine using those ports!!

So besides doing a backup - what now?

I have a degraded raid 1 with a single system drive working on the original Intel chip - and I can use the other drives on the Silcon image ports (but there are only 2)

I am assuming that my Intel chip is bad. Can I test it?

Do I have to replace the Motherboard? - or can I go out and get another raid card to add more sata ports - and just forget about the onboard ports.

Thanks in advance -

Joe