Overclock Intel2Quad Q9550

Johnny Boris

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Jul 4, 2014
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Hey.

I have in mind to Overclock my CPU.

My setup is as follows:

Intel Core 2 Quad Q9550@2.83Ghz (Yorkfield, Socket 775 LGA)
With Freezer Xstreme cooling.

Mainboard: Gigabyte P35-DS4

8GB DDR2

Grapichs: AMD Radeon HD 6970 2048MB GDDR5

GX 750W Cooler Master

This is the first time I do this, and looked a little bit on youtube and google, but before I 'm going to do this, I'll just ask some questions here.

What should I look out for and how much should I increase the CPU?
I got this computer from a friend for free (I'm used to Mac) I'm not even sure if its bad or great ...
 
Well, you have exactly the same configuration as me, except the graphics card. Lol ;) anyway, the easiest thing you can do is overclock to 3.4 ghz, by changing the fsb to 400 mhz, and definitely make sure to set memory ratio to 2:1 so that the bios shows 800 800 (before-after, apparently), you do not want to overclock ram. Set the pci bus to fixed 100 mhz. As for the cpu voltage, i gave mine only 1.22 V and runs perfectly stable on 3.4 ghz. You can get more, but thats way too tricky to explain and is not worth it due to need to increase voltages too much.
 

Johnny Boris

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Jul 4, 2014
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4,510
Forgot to say that my DDR2 RAM is 1066 .. The guide has 800Mhz, does it have anything to say?

Thanks for the replies ..

I play BF4, etc. Without problems - which I'm surprised for. :)
 

Johnny Boris

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Jul 4, 2014
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Okay .. I think i'll give it a try with Intel Q9550 Core 2 Quad basic overclocking guide - from Scan.
But should I change my ram memory rations in bios? Because I have 1066Mhz?
 
Change then in whatever way to make sure you dont overclock or underclock ram, you want it to stay at 1066 at all times for stability sake. That also pretty much limits you to a fixed 3.4 ghz clock, i.e. 400 mhz fsb, as i initially suggested. No need to go further, because this is easily achievable with stock voltage.
 
^^ This is correct, mate, but I was just trying to explain to the OP the easiest way, since this is a 2-minute operation. This "messing about" is usually not worth it, IMO. I have the best available revision (E0) and a very decent air cooler and case, but it is really, really hard to push it once you need to increase voltage. Temps increase like crazy as well.