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OC my new QX9650

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December 13, 2010 10:56:01 AM

HI,

I just get for a very good price a used Intel Quad Core QX9650 from EBay

The main components of my pc are:
Motherboard is a GA-P35-DS3R
DDR2 of 4 X 1 GB Kingston @ 800 MHz
ASUS video HD5970 card
Power Supply is an ANTEC 1000
LCD ASUS HDMI Full HD 27 inches
Windows 7 Ultimate @ 64bits

With those components, I over clocked my Q6600 @ 3.2 MHz with no power increase.

I would like to know if my Intel OEM heat sink\fan from my previous box Q6600 will be enough to support my QX9650 to speed such as 3.6 to 3.8 MHz and not to overheat or must I get a new cpu fan ?

As you already know, the multiplier of the QX9650 is not block, so what will be the best match for this cpu and minimized the used of a volt increase?

Ex: 9 X 400 MHz = 3.6 MHz

Thank you for your help and don't pay attention to my English because it is not my mother tongue.

More about : qx9650

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a b K Overclocking
December 13, 2010 11:09:00 AM

Hey, well you will definitely need a good cpu cooler to oc at 3.6 or higher, my guess, a hyper 212 + price/perf wise..
AS for oc, read some guide a little, for the basics.-I advise you oc by the bios, increase fsb , increase v core by a little only..
Check for stability, monitor your temps, using hw monitor [accurate and reliable] ..
December 13, 2010 11:15:48 AM

Yes, my intention is to oc via my Bios but I was hoping to avoid the purchase of a new fan even at 3.6 GHZ.

I know that QX9650 has not a very high max temp.

OK, I will continue my reading of those articles from the forum.

Thank you


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December 13, 2010 11:18:49 AM

Ghz not Mhz :) .

I have the same motherboard. It is easy to overclock but you need another CPU cooler. I have my C2D from 2.66 to 3.4 and sometimes gets above 55C with an aftermarket cooler.

I do not think you need to go above 3.6Ghz. The gain is small and the stress on the motherboard, RAM and CPU get's bigger and bigger.

The highest i got mine was 3.9 but that only for a short period of time because of the insane voltage requirements for the CPU and RAM(800Mhz).

Also you will need to lock the PCI-E frequency at 100 mhz. If i remember right i read somewhere that by increasing the speed of your CPU by rising the FSB you might increase the speed of the PCI-E but without locking too much into it i just locked the PCI-E at 100Mhz witch is standard.

If you use the multiplier then i do not have any experience but i think it will not affect the rest.
December 13, 2010 11:28:57 AM

Yes, I want to oc my QX9650 but I don’t want to push it too high and risk of damaging it.

Should I used the Corsair H50 liquid cooler or stay with standard fan?

Thank you
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a b K Overclocking
December 13, 2010 11:37:43 AM

Listen, what you can do, try your oc, like 15 % oc, then check your temps at load using hw monitor - It will determine to what extent you need a cooler, i recommend hyper 212+ though as compared to a liquid cooled system..
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December 13, 2010 11:38:30 AM

An after market heatsink is recommended for any real overclocking. The thermal limit is about the same for your chip as it is for the GO stepping q6600, around 70c for the cpu and around 100c for the cores. The max voltage is lower so keep that in mind, 1.3625 according to Intel.

As far as what voltage you'll need to reach a given frequency depends on your mobo and your particular chip. Every chip/motherboard is different so it's impossible to say without experimenting.

You can try overclocking on stock cooling, but I don't think you'll get very far, I'm guessing 10 to 15 percent before heat starts being an issue.
December 13, 2010 12:31:26 PM

JF47 said:
Yes, I want to oc my QX9650 but I don’t want to push it too high and risk of damaging it.

Should I used the Corsair H50 liquid cooler or stay with standard fan?

Thank you



I always liked that cooler. I say use it if you have one or have the possibility to by one. It will keep temperatures down.
Also check the forums or Google it and see at what speed games benefit the most when overclocking the CPU. I found out that mine does the job best at 3.4-3.5Ghz. Usually a nice overclock witch does not stress the CPU that much is around 3.5-3.7Ghz for newer CPU's. From a toms hardware article the best result and gains ware with CPU's at 3Ghz. Above that the increase in performance is not that big in most games.

So a 3.6 should be enough but you decide where you want to stop.

Here is a guide. http://www.tomshardware.co.uk/forum/259899-11-core-over...
It might help you .
December 13, 2010 4:29:07 PM

HI,

So, I should look for the H50 or for the hyper 212+ ?

I don't want to spend a lot for this new fan, nothing fancy, just a fan that will support the oc.

The only game I play is: Microsoft Flight Simulator X.

I built my pc for that simulation game.

Thank you for your help.
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a b K Overclocking
December 13, 2010 4:37:45 PM

Hyper 212 + my pick
a c 172 à CPUs
a c 197 K Overclocking
December 13, 2010 4:42:31 PM

Gigabyte motherboards clock the PCIe bus independently from FSB and memory clock.

I wouldn't run a Yorkfield past about 3.3 GHz on a stock Q6600 heatsink.
December 17, 2010 11:34:53 AM

HI everyone,

Thank you for all your comments.

I will definitely go buy a new CPU Fan and we seem to agree with a fan as the hyper 212+

I like the H50 from Corsair but I find it a little bit costly for what it gives!

I check amazon.ca but they don't sell the hyper 212+... so I am searching an online site in Canada that will delivered this fan to me in QC and I also hope to find a site that have free shipping.

Best regards and Merry Christmas to all
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a b K Overclocking
December 17, 2010 12:37:43 PM

Np, Enjoy..
December 17, 2010 6:25:36 PM

HI,

I just bought a new Cooler Master Hyper 212 Plus RR-B10-212P-G1 at NewEgg.ca for 29.99 $ and I think it is a very good price !

Regards.
December 18, 2010 12:39:41 AM

ionut19 said:
I always liked that cooler. I say use it if you have one or have the possibility to by one. It will keep temperatures down.
Also check the forums or Google it and see at what speed games benefit the most when overclocking the CPU. I found out that mine does the job best at 3.4-3.5Ghz. Usually a nice overclock witch does not stress the CPU that much is around 3.5-3.7Ghz for newer CPU's. From a toms hardware article the best result and gains ware with CPU's at 3Ghz. Above that the increase in performance is not that big in most games.

So a 3.6 should be enough but you decide where you want to stop.

Here is a guide. http://www.tomshardware.co.uk/forum/259899-11-core-over...
It might help you .



OK for 3.6Ghz but what should be the best ?

9 X 400FSB or 8.5 X 423.5FSB ?

My MB allow me to increase my mutiplier by 0.5 till 16.

Not to be stopped in my next OC, I just changed my DDR2 800Mhz for DDR2 1066Mhz

Thanks
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a b K Overclocking
December 18, 2010 3:20:54 AM

Nice for hyper 212, got one myself- at 3.6 ghz..
As for oc, any should do-
But some ppl prefer to keep fsb not too high. Mine is at 400 /Q2c
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a b K Overclocking
December 18, 2010 10:56:22 AM

There's no real performance gain between 400X9 and 425X8.5. Your just putting unneeded stress on the mother board with the higher fsb. Use that unlocked multi, that's what it's designed for.
December 20, 2010 1:22:55 AM

HI,

As soon as my new CPU/Fan will be installed, I will do my OC and let you know how high I was able to get.

Regards
December 31, 2010 7:03:03 PM

HI,

I just reach 3.5Ghz (10,5 X 334) and my cpu voltage is still stock.

Stable 24/7 and cpu temps @ + or - 37.

OK, I will continue my OC.

JF
January 2, 2011 4:22:23 PM

What is the cpu core temperature at overclocked speed?
Prime 95 for stability testing and memtest for RAM error testing. Use CPUID HWMonitor to check temperatures.

Is your CPU voltage on auto in bios?

!