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Q8200 hitting a wall at 2.91 Ghz

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Anonymous
a b K Overclocking
February 5, 2010 11:06:34 PM

So I knocked the dust off of my old quad core setup. It's a Intel DP45SG Extreme motherboard (I know OC'ing a Intel branded board is not always the best idea) and it's one of the few P45 boards that runs DDR3 1333. And of course my Q8200 that I've had for a while now. I am running Patriot DDR3 1333 modules at 9-9-9-24 and have the voltage bumped up to 1.7V for stability's sake (When running at stock speeds, they tend to be unreliable.) Also, I am only running 2 GB (2x1 sticks) and it's got the regular affair one one single sata HDD and a Nvidia GTS 250. No optical drive installed (I use a USB one, that I also use a plug in power source as not to drain power from the PSU.) It's also worth noting this is running a Zalman 9900 series cooler (I admit it's not the best) and AS5 for the TIM.

I'll be honest and say all the parts I had laying around, with the exception of the memory. And previously I was running 4x1 GB sticks at the same speed, same type, brand all that. The highest I could muster was 2.91 Ghz and that was without adjusting voltage and by just modifying the FSB to 415 (or something around there) Also when I was OCing at that level I was using (IMHO a better cooler) a Coolermaster 212 Hyper+. But anyhow, pressing on.

At the moment I have the computer overclocked to 2.8 Ghz by changing the FSB to 408 and I was using RealTemp and P95 to test it and it seems I am getting temps in the area of 55 C at full load at this level. Now I know the case I am using frankly sucks for airflow. Only 1 120MM fan in the rear at 1400 RPM and 2 92MM fans in front to cool the hard drives. But is this an acceptable level of heat for adding NO voltage and using (IMHO) a 2nd rate cooler? I know it's better than a stock cooler, but not by a great deal.

Also I've been eying the Q8400 as they seem to run really ice cold at 44C overclocked to 3.4 Ghz. But that's probably with a much better cooler and a better motherboard and case anyhow. Also I will mention in order to get my 2.91 Ghz OC stable I had to slow my memory down from 1333 to 1066. And at those speeds I was running about a 1600 Mhz bus speed, so I think the X factor in not going faster may be my ram, or it may be my motherboard.

Thoughts? Comments? Ideas? This is just my "mess around" computer, but I would like to see it run faster than my Phenom II X3 at 3.4 Ghz.

More about : q8200 hitting wall ghz

a b å Intel
a c 197 K Overclocking
February 5, 2010 11:21:32 PM

The Q8200 family is known to be not particularly good overclockers.
Anonymous
a b K Overclocking
February 6, 2010 2:37:29 AM

Anyone with any helpful information?
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February 7, 2010 12:55:24 PM

You might want to try your Northbridge voltage since you're going past 400 FSB. My P5E doesn't like doing much more than that without a voltage bump. The problem with the Q8200 is the low multiplier - you need a pretty high FSB to get decent clocks on the CPU and it can be difficult getting that with many motherboards.
March 4, 2010 11:40:49 PM

i'm not sure if this helps but i have got mine to 3.01 stable, 3.2 is achieveable but dies out after 1 hour.current fsb 430 multiplier 7. auto voltage and mem multipler. using zalman for better overall temps.cpu temps down by 7 degress ,other components down by 2 degs. any idea what voltage is best for the 440 fsb?. i have put mine to auto as 1.2v will be stable only for 2 hours
(btw what the highest speed achieved with the q8200?, i feel like this is the most unoverclockable cpu :(  )
Anonymous
a b K Overclocking
March 4, 2010 11:59:01 PM

I ended up settling on 2.8 Ghz for a while, but since I will end up selling this computer off cheap I put it back to stock speeds and using speed step. I also threw in a BFG GT210 video card. Wait, maybe I already listed the specs on this machine. Oh, and I installed a new DVD-RW drive since last time I was running an external. I'm trying to get a friend of a friend to buy it as an upgrade from his ancient P4 2.2 Ghz machine. And an ATi 9550 I think video card.

Anyhow I think the highest I've seen the Q8200 go is 3.2 Ghz personally. I can't reach those speeds because at 2.8Ghz I am running a 1600 Mhz bus speed and my memory can't OC faster than that. If I ran some more expensive/ higher speed memory I could see you getting a little faster.

Hope that helps!
March 5, 2010 8:11:27 PM

haha yea i just found out the 3.2 ghz ones wer the cream of the crop q8200s.. apparently they are able to go up to 3.4ghz :S

Best solution

March 5, 2010 8:16:18 PM
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the q8200 is well and truely un-overclockable. how ever bringing it to 3.01 has provided me with decent gameplay abiilty,i havent come across a game i couldnt play :D 
Anonymous
a b K Overclocking
March 12, 2010 12:50:41 AM

Best answer selected by GreeneMan510.
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