Put the UD7 up for sale on evil-Bay and grabbed a(nother) P6X58D-Premium. Initial testing still shows I can't get DDR3-2000 7-8-7 or 7-7-7 8x HyperPi 32M stable on stock 1.66v when running 166BCLK 2:12 or 200BCLK 2:10 ("Not Exact in Round" errors). This is using either my proper STT PC3-16000 C7 kit or the three PC3-17600 C8 sticks. Lowering to 8-8-8 I was able to drop my VTT to 1.45v however for 8x 32M stability.