feeling so hopeless,can't get blend orthos test stable,fail after 5 minutes.The orther tests (small,large..) doing fine many hr+ (8+).My spec is

Asus Commando
6600 week 37 @3600Mhz (1.525v bios)
vfsb = 1.35v
vmch = 1.45v
v-dimm = 2.1v (OCZ Flex @4-4-4-12 800Mhz)
vsb (pci-e,sata) = 1.65v
vsb = 1.1v