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Overclocking help...

post #1 of 8
Thread Starter 
Well guys, basically I am a complete overclocking noob. I have read a few tutorials and I manage to understand some stuff but i do have some questions that are not answered or I just dont understand them in the guides.

My computer is coming in on Monday and I have nothing to do ATM but sit around and wait so I thought I would make my time useful and figure out this overclocking stuff.

Here is what I understand so far:
  1. Intels CPUs have locked multipliers and you can only overclock them with the FSB.
  2. The speed of RAM is measured 2xFSB (ie. 800MHz ram is stock at 400MHz FSB).
  3. PCI-E and PCI should be locked before OCing.
  4. Best performance is achieved if the RAM is 1:1 with your CPU
  5. To OC your processor, up the FSB a few MHz at a time until it becomes unstable then up the vcore.

My questions:
  • Before OCing anything. What should I lock in my BIOS. I read somewhere that I should lock the PCI-e and PCI, is there anything else I should lock. What should I lock these at and will there be any problems when I up my FSB if these are locked at their stocks...
  • I am running a C2D E6300, what should I aim for as a permanent OC on air (I am running the Zalman 9500). What is the temp I should stay under for a 24/7 OC and what vcore should I stay under.
  • When I am OCing my 6300 I will up the FSB Mhz a few at a time. If I hit stability problems, how much should I up the vcore by before continueing my OC.
  • Is it possible to lower a multiplier by .5 (ie. from my processors default 7 to 6.5 so I can achieve 2.6GHz cpu clock while retaining 400MHz FSB. This is just an example). If it is, are there any stability issues...
  • I am running OCZ Gold XTC PC2-6400 2GB at 5-5-5-12 timings. Are these timings bad.. and the memory is 800MHz so does this mean the best performance I will achieve with my ram is if the FSB is 400MHz and the CPUs multiplier works off that.
  • I am sort of unsure about how this ratio thing works with the cpu and memory can someone please explain it further also can someone explain to me the memory timings like do I need to change them at all during overclocking the FSB and if so why and how do I know what to change and by how much.
  • After I finish OCing my processor and FSB can I slowly tighten my timings and if so how do I tighten them like what numbers out of them would I change and how would I know the tightest they can go, would i run memtest each time after tweaking them.

I really apologize for all these questions but i am really nervous about OCing, I dont want to do anything wrong but I am a very eager and fast learner. I will do what it takes. My keyboard is also not working ATM its keys are messed up so I cant type apostrophies and question marks, etc...

If you need more detail on my system visit my gaming rig system on the forums: http://www.overclock.net/system.php?i=10128

Thanks to all who reply in advance.
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post #2 of 8
Quote:
Originally Posted by civilr View Post
  • Before OCing anything. What should I lock in my BIOS. I read somewhere that I should lock the PCI-e and PCI, is there anything else I should lock. What should I lock these at and will there be any problems when I up my FSB if these are locked at their stocks...
  • I am running a C2D E6300, what should I aim for as a permanent OC on air (I am running the Zalman 9500). What is the temp I should stay under for a 24/7 OC and what vcore should I stay under.
  • When I am OCing my 6300 I will up the FSB Mhz a few at a time. If I hit stability problems, how much should I up the vcore by before continueing my OC.
  • Is it possible to lower a multiplier by .5 (ie. from my processors default 7 to 6.5 so I can achieve 2.6GHz cpu clock while retaining 400MHz FSB. This is just an example). If it is, are there any stability issues...
  • I am running OCZ Gold XTC PC2-6400 2GB at 5-5-5-12 timings. Are these timings bad.. and the memory is 800MHz so does this mean the best performance I will achieve with my ram is if the FSB is 400MHz and the CPUs multiplier works off that.
  • I am sort of unsure about how this ratio thing works with the cpu and memory can someone please explain it further also can someone explain to me the memory timings like do I need to change them at all during overclocking the FSB and if so why and how do I know what to change and by how much.
  • After I finish OCing my processor and FSB can I slowly tighten my timings and if so how do I tighten them like what numbers out of them would I change and how would I know the tightest they can go, would i run memtest each time after tweaking them.
Thats all you need to lock.

A good OC is 3.2GHz. I upped the FSB to 400 (so it was 2.8GHz) on mine with no voltage increases. I could go higher but I was working on getting the video card working correctly so I didn't want to have any instability. I've heard both 1.4 and 1.5 as acceptable voltages. If you truely run it 24/7 I would keep the voltages lower because of heat. I don't know what the highest temp is (I have a tuniq on it so I don't have to worry about temps much). Someone said they try to keep it under 45C. I would think 45-50C would be fine under load.

Just move the vcore up the smallest possible amount. You won't hit stability problems for a while though.

As far as I know it is not possible to change the multiplier by .5.

I don't know much about timings. The best performance will be the highest achievable clock. You can change the divider so the RAM stays at its rated speed.

The divider is what the RAM runs at compared to the FSB. If its 1:1 the RAM is at the same speed as the FSB. If its 1:2 the RAM is half of the FSB. You want it to be as close to 1:1 as you can get it.

Again, not good with RAM timings so I can't help with that questions.


The E6300 is a great overclocking processor. Good luck with it.
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post #3 of 8
Thread Starter 
Thanks Waupli. If anyone else is reading this I still need an answer about the RAM overclocking/timings. Please help me out on this last one. I will probably be posting another topic next week when my parts finally come in if I get stuck, otherwise I will get it up and running.

Would it be a good idea before doing anything to get it up and running and run Prime, Pi, Memtest, and 3Dmark to see if all my parts are working correctly?
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post #4 of 8
Np.

You might want to do that. I tend to just play a game for a while to make sure everything is stable. That is what I do that puts my computer under the most load and its more realistic. It gives me an idea of how everything runs and how stable it is. That way I can see the increases more easily than seeing numbers increase (or decrease if you're doing superPi).
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post #5 of 8
I think you could probably get 4-4-4-12 with those sticks, maybe 4-4-4-10 with a few more volts

Put your FSB @ 400 and then run 1:1 to get 800mhz Ram speed @ 4-4-4-12

So, by using 400 FSB & an x 8 multiplyer you should be able to reach 3200 MHZ with RAM at 800 MHZ 4-4-4-12. Remember to increase you CPU voltage accordingly (mainly when the system becomes unstable) and to increase you RAM voltage from the start (2.0-2.2v is a safe and sufficient voltage)

If you have any questions nearer the time, just PM me. I'll be happy to help
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post #6 of 8
Thread Starter 
Thanks for letting me PM you, anyways to determine whether or not the RAM needs more voltage or is unstable I would run memtest?

Those 4-4-4-12 timings, I am not too experienced with RAM so are these good timings and is it possible to make them even tighter with higher voltage?

My processor is the E6300 so it only multiplies @ 7x so is it possible to go higher than 2.8GHz with the ratio @ 1:1? If so, how? Do I need RAM that's rated higher than 800Mhz to achieve 1:1 over 400FBS?

If the ram timings are too tight would memtest produce ram errors so I can tell if I need to change them looser.

And one more question, if I wanted to tighten the timings how would I go about doing this I mean myself without setting them to a fixed #. Which out of all the numbers would I gradually increase and by how much each time I test the RAM?

Also is 2.8GHz or 3.2GHz a good 24/7 overclock for my E6300 with the Zalman 9500?
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post #7 of 8
I'm not at all familiar with the EVGA boards. I'm trying to download their user manual right now but its taking forever!

You could try 450FSB x 7 for nearly 3200mhz. Try and run that at 1:1 so your ram will be at 900mhz effectively but you will need to increase the ram voltage, possibly up to 2.20v-2.30v @ 4-4-4-12 or maybe even 5-5-5-15.

You'll also have to increase the cpu voltage (you probably know that) a touch aswell.

Once this damn manual has downloaded I'll be able to help you with the timings.
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post #8 of 8
Thread Starter 
Alright thanks for attempting to help me on this one. I will wait for your response on the RAM timings. Also my last question that went unanswered. If I want to establish a 24/7 overclock is 2.8GHz or if I can get it up to 3.2GHz, is it fine for 24/7 or is it too high? Keep in mind I am using the Zalman 9500.
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