Ok, so I turned my pc on this evening. the house fuse went and there was a spark went at the back of the psu (which leads into the cpu). the psu is from abroad (two pin plug) and was going thru an conversion adapator (to 3 pins). i flicked the house fuse and tried again...plugging the psu/adpator into a different socket. againt there was spark. my question is, if the psu went was pluged into a socket adaptor, will the fuse in the adaptor blow or will the fuse in the psu blow? also, what are the chances of the motherboard being fried? i think it must be a faulty psu as this model has had some issues with it.