Gigabyte GA-P35 DQ6 and Intel Core 2 Duo 6600 Overclocking help!

[sinitry23]

GIGABYTE GA-P35-DQ6
Intel Core 2 Duo E6600
EVGA 320-P2-N811-AR GeForce 8800GTS 320mb
G.SKILL 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800
Western Digital Raptor X WD1500AHFD 150GB 10,000 RPM
OCZ GameXStream OCZ700GXSSLI ATX12V 700W
Windows Vista Ultimate x64

I try overclocking this setup and once I up the FSB from 266 to 275 the computer will not boot. The multiplier is set at 9. Should I lower the multiplier? What are some stuff in the BIOS that I should disable before overclocking to have stability?

 

[Yanagi]

What is the VCore set to now? Try to lower the mem multi to exclude your ram from prohiting the system to boot. Have you checked with various utilities what your real Vcore is? It might be different from what it is set in BIOS. Any stability issues at stock and how about your temps.

Incoherant from me I know but these are suggestions you might want to check before you start to OC

 

[sinitry23]

My temps at idle is around 35c and my computer is 100% stable stock.

In my BIOS I have the option to setup my voltage on Auto. It will adjust the system voltage automatically until it is stable. But for some reason it doesn't seem to work. What is the stock voltage for an intel core 2 duo 6600 stock CPU? is it 1.35v? Should I manually adjust the voltage or leave it on Auto?

 

[orion23]

Did you set your RAM to run 1:1 or 2 X your FSB speed?

@ the default 266FSB, your RAM should be running 2X that, = 533mhz.

Then start pushing the FSB and the RAM should tag along, or you can set it manually. 2X while testing makes things easier.

Also, did you set the manufacturer specified RAM voltage and timings?

Disable C1E, Speedstep, thermal control, and anything Throttle / Spectrum related.

Set the CPU Vcore to 1.35V and see how high you can go with that.

When it fails, set it to 1.4V. Again, test it with 3Dmark 2006 or Orthos for about 15 minutes @ least.

If you go to 400 FSB or so, set the NB and FSB Voltages 1 notch higher!