Asus P6T Deluxe Discussion Thread

[Xcellere]

Hey folks, I'm hitting a wall at 3.2 GHz on my i7 920 (C0). These are my current settings:

BCLK: 160
Multi: 20
DRAM Frequency: 1603 MHz
CPU Volt: 1.35
PLL: 1.96
Uncore: 1.35
DRAM: 1.66

P6T Deluxe V2 (0610 BIOS)
i7 920 (C0, lapped)
Corsair 6GB (3x2GB) Dominator 1600 8-8-8-24-2T
Thermalright 120 Extreme (lapped) + Scythe 120mm push/pull

Two questions:

1. 3.2 GHz is Prime stable at the above settings, but won't even boot if I try to raise the BCLK and keep the timings the same. Do I have a lousy chip or am I missing something?
2. I was Prime stable at 3.4 GHz but with the DRAM frequency lowered to 1443 MHz. Is lower DRAM frequency a smart trade-off for higher CPU clocks?