I've just purchased an ITE IT8212-based PCI RAID card, marketed in my country by Q-Tec as "IDE RAID133 PCI Card 2 Port". The interface is 2xATA supporting four devices.
The disks I'm using are two Seagate Barracuda 160 Gb disks, one a 7200.7 and one a 7200.9.
The installation went surprisingly well... I was able to create a RAID 0 array across the two disks and partition and install XP on it. However, when I started copying files from my backup drives to the new array, I noticed some odd behaviour. It would go fine for some time, maybe a couple of minutes, but then it would just stop on some random file... could be a small file or a large file. If I let it sit for 5 minutes or so, it'd keep going, and stall again after some time. I tested copying between some of my other disks not connected to the card, and they behaved normally, but any copies involving the new array exhibited this behaviour.
Anyway, I have gotten all my data over onto the new array, and now it's started on something new... Every once in a while, the Explorer process locks up, using 95-100% of the CPU. It can be while I'm doing anything... last time, I was just browsing around the file system, but it's happened when I wasn't working directly with explorer. If I kill the process in task manager and load it again, everything is fine.
Some more specs about my machine... The motherboard is an Asus P4S533-E, CPU Pentium 4 2.0A, memory 1 Gb DDR400, video nVidia GeForce 4 Ti 4200.
To try to correct the problem, I checked and updated the drivers for the RAID card and all my chipset drivers. The only thing I haven't done is updated the motherboard's bios, because I don't have a floppy drive. I've checked for resource conflicts, but the only other PCI device I have is a Leadtek Winfast video capture card, and I've disabled as much as possible in my BIOS (parallel port, etc.).
So, does anyone have any suggestions? Any programs I can run to try to figure out what explorer is doing when it freezes?