This talk of batches reminds me, I should update my line of the chart on page 1.
7. Womper 4770K/L312B318 1.008 V/- 4700(47x100 MHz) 1.350 V x46 ~1.30v 2133 MHz C9 Swiftech H220 ASUS Z87-PLUS/Intel EPP.
4.8GHz seems to be an elusive beast (requires disproportionately high voltage, at least when combined with the decent/aggressive cache and memory settings I attempted). Like 1.375v manual voltage will boot but crash during load testing. At 4.7GHz, I can boot at a mere 1.28v and similarly crash during load. Really? 0.1v difference for 100MHz?
24/7 I'm at 4.7GHz core/4.6Ghz cache with +0.160v and +0.300v offsets respectively. Using XMP tuner mode with DDR at 2133, all other settings left to whatever Load Optimized Defaults set them to.
P.S. cadaveca, you are probably correct about the VRM overheating- the ambient temps are cooler now, and like magic the bluescreens stopped. Swapping the hsf out for the H220 during the heat wave compounded the issue probably. If I see issues pop up when ambient temps are high, I'll know what to set in the BIOS...thanks.