Quote Originally Posted by tiesum View Post
Good day gentlemen,

I have a problem. I can't seem to get my mobo over an FSB of 440. I let the memory run on 1:1 so that this can't be the problem. Also I dropped the CPU multiplier to 7 ( I know the CPU can run at 3500 Mhz+ so that can't be the problem eiteher. When I use this settings the system won't boot:

Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : AUTO
CPU Ratio Control : Manual
- Ratio CMOS Setting : 7
FSB Frequency : 450
FSB Strap to North Bridge : auto
PCI-E Frequency: 100
DRAM Frequency: DDR2-900
DRAM Command Rate : 2T
DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 15

CPU Voltage : 1.4000
CPU PLL Voltage : 1.52
North Bridge Voltage : auto
DRAM Voltage : 2.20

When I turn the FSB to 440 there's no problem. Anyone have suggestions??

Specs:

mobo: Maximus Formula
CPU: 6750
Mem: Crucial Ballistix PC8500
Cooling: TT Big Typhoon

Thanks!
You may need to increase the PLL voltage a bit (say 1.60 or so) and you definitely need to set your NBV higher. I'm actually suprised you got that high without dialing in a specific voltage. On the NBV try starting out with 1.50V. That's what I'm running, but you may need more.