"ASUS P5Q Deluxe discussion".

[Mumid]

Here's my template for what settings will be stable at DDR 1199 MHz, but fail to even boot when raising the FSB & therefore ram by 1 MHz. The fact that I am totally stable at 499FSB/DDR1199 then it totally fails to even boot at 500/1200 is obviously a board/bios issue of some kind. I am quite an experienced overclocker and this type of behaviour is very strange.

I have tried every strap at every possible FSB/Ram frequency combination to no avail. 1200 + ram speed is not possible.

ASUS P5Q DLX Template :

JumperFree Configuration Settings
AI Overclock tuner: Manual
CPU Ratio Setting: 8
FSB Strap to North Bridge: 333
FSB Frequency: 499
PCI-E Frequency: 100
DRAM Frequency: 1199 (reads as 1200 in windows)
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Manual

1st Information : 

CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : 5
Row Refresh Cycle Time: 55
Write Recovery Time: 8
Read to Precharge Time: 5

DRAM Static Read Control: disabled
DRAM Read Training: disabled
MEM. OC Charger: Enabled
AI Clock Twister: light (setting to lightest makes no difference)
AI Transaction Booster: 10 (setting up to 13 makes no difference)
Pull-In of CHA PH1: DISABLED
Pull-In of CHA PH2: DISABLED
Pull-In of CHA PH3: DISABLED
Pull-In of CHA PH4: DISABLED
Pull-In of CHB PH1: DISABLED
Pull-In of CHB PH2: DISABLED
Pull-In of CHB PH3: DISABLED
Pull-In of CHB PH4: DISABLED

CPU Voltage: 1.3625 (I am not cpu vcore limited, I can bench at 571 FSB easily and boot at 590 FSB at this voltage)
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: 1.52
FSB Termination Voltage: 1.12
DRAM Voltage: 2.1 (stable at 1199 at 2.1v, setting up to 2.3v makes no difference still cant boot at 1200)
NB Voltage: 1.28
NB GTL Reference: AUTO
SBridge Voltage: AUTO
PCIE SATA Voltage: AUTO

Load Line Calibration: disabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : AUTO
NB Clock Skew : AUTO

Advance CPU Settings
CPU Ratio Setting: 8
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Enabled
Vanderpool Technology: Enabled
CPU TM Function: Enabled
Execute Disable Bit: Enabled 

Have you tried using a higher VTT?