ASUS P5K Deluxe - Intel P35 Bearlake + E6600 B1 / Q6600 B3

[FabricioGS]

Thanks to Supershanks tip, I'm keeping vdimm at 2.2v for now, but I think I need to give some more attention for the PWM area. Maybe use 2x40mm coolers on it since the Asus original blower won't fit because of my cooler.

Since I already knew I could get up to 3300Ghz stable with 1,325v vcore set in bios using the 9x mult, I kept that vcore and tried first 415x8 (3320MHz) and one core crashed at Prime95 after about 7 minutes only. Then I tried 413x8 (3304MHz) and I'm more than 2 hours Prime stable:


Bios settings:

JumperFree Configuration Settings
AI Overclocking: Manual
CPU Ratio Control: Manual
- Ratio CMOS Setting: 8
FSB Frequency: 413
PCI-E Frequency: 103
DRAM Frequency: 826
DRAM Timing Control: Manual
CAS# Latency: 5
RAS# to CAS# Delay: 5
RAS# Precharge: 5
RAS# Activate to Precharge: 15
TWR: AUTO
TRFC: AUTO
TWTR: AUTO
TRRD: AUTO
TRTP: AUTO
DRAM Static Read Control: Enabled

Transaction Booster: Disabled
Relax Mode : 0
Clock Over-Charging Mode: AUTO (there's no 'Disabled' option)

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

CPU Voltage: 1.325v
CPU Voltage Reference: AUTO
CPU Voltage Damper: Enabled
CPU PLL Voltage: AUTO
DRAM Voltage: 2.2v
FSB Termination Voltage: AUTO
North Bridge Voltage: AUTO
North Bridge Voltage Reference: AUTO
South Bridge Voltage: AUTO

Advance CPU Settings
CPU Ratio Control: Manual
- Ratio CMOS Setting: 9
C1E Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
PECI: Enabled

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Try to get 400FSB first with eg a multi of 8 and see if it's stable, if stable you can add Vcore to eg 1.5 and change multi to 9x , test if it's stable, then go 1.475 or sortlike... make sure the CPU is adequately cooled and some fresh air blowing over the PWM area....

I tried 400x9 for a while with 1.50 vcore but the temps got so high that the system restarted (100+ºC).

One thing is clear for me: despite of what I've always been told about overclocking, using most of the options at AUTO seems to keep the system more stable than if I try to guess a voltage. Point to Asus, I'd rather that way :p

I'll keep on testing, and I believe I have to work on two fronts: voltages and temps.

Now I'm trying almost the same config but using a different strap/memory option: strap 266 and DRAM Frequency: 1033. Let´s see what happen.

EDIT: one core failed after 1 hour and 23 minutes.