Overclock.net › Forums › Intel › Intel CPUs › A couple of overclocking questions.
New Posts  All Forums:Forum Nav:

A couple of overclocking questions.

post #1 of 5
Thread Starter 
Hello,

Firstly, my system specs:

CPU: Intel Core 2 Quad Q6600 (Stepping B, Revision G0).
Motherboard chip: Nvidia NForce 680i SLI
RAM: 4GB DDR2-800 (OCZ PC2-6400)

I hope somebody could give me a hand trying to work out exactly what is happening here and why. I have read a bit about overclocking, so I'm not completely useless, apparently my CPU is pretty nice for overclocking, although as it is now a few years old, I wouldn't mind a free upgrade. I've invested in 3 nice fans which should help with cooling.

1) I've reduced the CPU multiplier down to x6 and attempted to reduce the memory frequency down to 400MHz (the lowest it can go) and work the FSB up. However when I set the memory to 400MHz, I get an error during post that "the system is now in safe mode" and asks me to change the frequency - why is this, why would reducing the memory frequency cause a problem other than a slower system?

2) It seems on my motherboard I can set the memory frequency independently from the fsb frequency (as opposed to choosing a specific ratio), do I have to worry about any strange ratios, or are there certain ones that are acceptable?

3) Currently, I have the following (from CPU-Z) running stable:

Core speed: 1650MHz
Multiplier: x6
Bus speed: 275MHz
Rated FSB: 1100MHz
DRAM Frequency: 300MHz
FSB: DRAM: 11:12

Clearly, this is worse than the stock, but raising the FSB to 300MHz causes the safe mode error message I gave earlier.


So, what am I doing wrong?
Thanks.
My PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad - Q6600 (Rev G0) XFX NForce 680i SLI GTX 560 4GB DDR2-800 (OCZ PC2-6400) 
OS
Windows 7 64-bit Ultimate 
  hide details  
Reply
My PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad - Q6600 (Rev G0) XFX NForce 680i SLI GTX 560 4GB DDR2-800 (OCZ PC2-6400) 
OS
Windows 7 64-bit Ultimate 
  hide details  
Reply
post #2 of 5
http://www.overclock.net/intel-cpus/...-core-2-a.html

Take a look here.
He has the same chip you do.
post #3 of 5
Thread Starter 
Hi mbudden,

Thanks for the comment - I've read over that guide, although unfortunately the issues I'm having aren't mentioned within that guide.

Thanks.
My PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad - Q6600 (Rev G0) XFX NForce 680i SLI GTX 560 4GB DDR2-800 (OCZ PC2-6400) 
OS
Windows 7 64-bit Ultimate 
  hide details  
Reply
My PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad - Q6600 (Rev G0) XFX NForce 680i SLI GTX 560 4GB DDR2-800 (OCZ PC2-6400) 
OS
Windows 7 64-bit Ultimate 
  hide details  
Reply
post #4 of 5
Add your specs of your system here
http://www.overclock.net/specs.php?do=addsystem

For number 3. It looks like you have Speed Step enabled.
What is the exact OC you have in your BIOS?

IIRC, the nForce boards aren't the greatest for OC'ing.
What kind of OC are you trying to achieve with the Q6600?
post #5 of 5
Thread Starter 
I've checked and speed step is disabled. The bios is as follows:

CPU multiplier: x6
FSB: 1100MHz
Mem Freq: 600MHz

Quote:
What kind of OC are you trying to achieve with the Q6600?
If I could achieve 3GHz I'd be happy.
My PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad - Q6600 (Rev G0) XFX NForce 680i SLI GTX 560 4GB DDR2-800 (OCZ PC2-6400) 
OS
Windows 7 64-bit Ultimate 
  hide details  
Reply
My PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad - Q6600 (Rev G0) XFX NForce 680i SLI GTX 560 4GB DDR2-800 (OCZ PC2-6400) 
OS
Windows 7 64-bit Ultimate 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › A couple of overclocking questions.