If you've had your ASUS GTX 680 DirectCU II a while and fancy a bit more MHz, [H] forumer chimaxi83 has a photographic guide of VGA Hotwiring and volt-modding it to your ROG Rampage IV or Maximus V Extreme motherboard, with key tips on how to do it right. Warning though: any soldering efforts naturally void the warranty, so bear this in mind if you want to try it out. ASUS GTX 680 VGA Hotwire