It was hot at default voltages. My DangerDen block was on it fine though, even had ATi impressed into the copper when I removed the block.

I know RD600 uses SB600 - the raid performance was pap though. The only good raid performance figures I saw was 4 * 150GB raptor raid by Fugger. All the other benchmarks by members who owned the board showed it to be slower than ICH8.