What horror!!, It is very behind schedule already. I have had to change the motherboard but for my surprise they follow such problems. Now I have a motherboard Gigabyte S3945P and it has these same problems. You can look secreens and say me if those rays that always appear me when installing any operating system are problems of hard or of soft. http://img507.imageshack.us/img507/1654/p0508071319wv8.jpg http://img508.imageshack.us/img508/4548/p050807131901nc2.jpg http://img126.imageshack.us/img126/4329/p0508071322sh5.jpg http://img408.imageshack.us/img408/8687/p1706071706ty5.jpg http://img148.imageshack.us/img148/5857/p1606071703cu8.jpg Thanks.