Well lately my ram has been rather unstable which isnt good as ive only just purchased them (corsair vengeance pro 2x4gb 1866mhz) im using the timings 9-10-9-27 and 1.5v which should be right? But is still unstable and when doing memtest86+ I recieved over 900 errors when first starting the test and I cant seem to work out what ive done wrong? Any help would be much appreciated