There is a way to indicate if you have KT7-Raid or KT7A-Raid. Look at the motherboard, there should be a big green sticker says KT7-Raid or KT7A-Raid. If unsure, get WCPUId and use it to check the chipset, if it says 686A, your board is KT7-Raid, if says 686B, then yours is KT7A-Raid.