A few questions about overclocking.

Gorebash

Gorebash

Gorebash

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5 Aug 2010
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Hello OcUK!

I'm on the verge of venturing into the world of Overclocking after building my new PC and thanks to the beginners guide sticky it's becoming a bit clearer but I'd just like to make sure what I'm thinking is correct :p

On it's way is a

- Asus P6X58D-E
- Intel Core i7 930
- Thermaltake Frio
- XFX Radeon 5870
- 850W Corsair HXW
- Corsair 6GB (1600Hz)
- Antec 1200

I'm going to be having both fans attached with the Frio and running at medium and will be aiming for a overclock of about 3.5GHz at first.

Here is what I understand is when I open up the bios I'll be looking for the key things to change, the CPU FSB, the multiplier (This times the FSB = the overall clock speed) and the voltage (The power to the CPU).

I ask if what I believe is correct....finding the CPU speed and clocking it up a couple of hertz at a time, booting up and running a stress test and continuing so until the CPU reaches the speed I want/shows signs of stress. Then I try upping the voltage to see if that prevents the CPU being unstable BUT increasing the voltage = a much hotter CPU.

I also would like to know what's the correct balance? thinking about it is it better to have a high FBS/low multiplier or a low FBS/high multiplier?

And finally I understand that each motherboard uses different references for the CPU speed and etc in the Bios so what should I be looking out for with the Asus P6X58D-E? and if you also have a i7 930 and overclocked what have your experiences been?

Thanks ahead! :D
 
I know this may not answer your questions, but have a read through this, u don't have to follow it as such, but it may help.

http://www.clunk.org.uk/forums/overclocking/22106-core-i7-overclocking-guide-beginners.html

Iv been overclocking for some time, but when i switched to I7 it was like omg this is all new lol, even i looked at guides, once u have the basics sorted, it gets a lot easier.

The question of high or low fsb (bclk) really all depends on the mobo and cpu, i can tell u that the mobo u have can handle high fsb (bclks) so therfore it all depends on if u have a good cpu or not.

Now that being said, id be more then glad to help you with ur clocking, as im familiar with the mobo, as would many others here, but have a quick read of that guide.
 
Ahh that's rather helpful. Cheers!.

I'll most probably be back once I've built the PC in a couple of days heh.

I'm lead to believe the 920 overclocks in a very similar way to the 930 so I'm guessing it's safe to say a large amount of the information can be carried over whilst overclocking my 930 and as it already has a high multiplier of 21x it's more of a matter of increasing the Base clock.

But one thing I must admit is I don't 100% fully understand about the DDR timings.

"You only need to change the top Four settings, these are your main memory timings and it is important that you set these values to whatever it says on the label on the heat spreaders of your modules"

So as the RAM I'm getting has timings of 9-9-9-24 I should check in the BIOS it should read something like

DRAM CAS# Latency - 9 DRAM Clock
DRAM RAS# to CAS# Delay - 9 DRAM Clock
DRAM RAS# PRE Time - 9 DRAM Clock
DRAM RAS# ACT Time - 24 DRAM Clock
?

But other wise again this guide was a great help, thanks for the link!.
 
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Yep you will see them like that, generally they will be the top ones in the memory section as they are the main timings.

First thing I would do is put all of your voltages onto the stock values. VTT @ 1.1v, RAM @ 1.65v (or probably 1.66v on the Asus board, might come up a warning but ignore it), IOH @ 1.1v etc etc, this will prevent the Auto setting on the board ramping these right up when you start overclocking.

Then it would be a case of raising the BCLK up by 5 each time and testing it with say a 30 min run of Prime or 5-10 runs of Linx/IBT, keeping an eye on temps. Eventually you will get to a point where it will either fail or windows won't load - time to increase voltage.
 
Got it in one :p

I usually go up by two nudges at a time, your soon get a "feel" for it. Basically the longer it goes before failing then the closer you are. If you turn the PC on and it BSOD's near instantly on windows loading then you know its going to need more than a nudge to get it stable :)
 
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