From what I've read, all nforce2 mobos lock the pci bus.. however, I've been experiencing some instability with my Epox 8rda3g, and I'm curious as to whether or not the pci bus is the case. Are there any programs that reliably measure the pci bus on nforce2 mobos? I've read that Sandra is very innaccurate. If anyone has this board and knows for a fact that it locks the bus, please let me know! Thanks!