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Q6600 weird performance with new motherboard

post #1 of 12
Thread Starter 
Hi, I have a bit of a problem with my new motherboard regarding the performance.

I have a Q6600 and have recently changed my motherboard to a G41MT-D3 from a 946GMX-S2. I know they both aren't very good but I'm planning to use this computer for another year until Ivy bridge releases.

So for some reason when I try to stress my computer with Prime95 or Intel LinX, the Load % in RealTemp stays at 78%, even when not overclocked. And the GFlops in LinX is ridiculously low.

I guess picture tells a thousand words so here is a picture of what I'm talking about



Uploaded with ImageShack.us

Another thing, when I overclock using this new motherboard to my usual 3Ghz which i could with my old motherboard and stress with prime95, an unusual high pitch noise appears and the load % in Realtemp starts varying from 6x%-8x% for like a minute and settles at 78%.

So why is that happening? Should I change it back to my old motherboard?
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post #2 of 12
have you disables EIST and C1E etc in the bios
you shoud be getting 37-45gflops with a Q6600 depending on oc

download intel burn test (the best in my opinion)

before running test, close down all running programs.
open task manager, or resource meter
now have a look at how much FREE ram is listed,
enter this into IBT eg. i have 2520mb free ram, so i enter 2500mb ram.
set threads to 4 (quad core)
and run the test for 10 passes.

" I would choose 'free' memory as available memory will also make use of cache memory which must be storing data for other applications aswell. Windows may free up some physical memory from the cached memory during testing but not totally and i think the rest will be the virtual memory as a compensation.

Available = Free + (Cached - Modified)"

running just free memory will help you get higher gflops, as its just using free ram and not cached ram
this should also have 4 cores running at 100%

GFlops is the rate/speed at which the cpu executes instructions and is related to cpu speed.

Q6600@2.4Ghz 2.4 x 16 = 38.4GFlops

Q6600@3.3GHz 3.3 x 16 = 52.8GFlops

Q6600@3.4Ghz 3.4 x 16 = 54.4GFlops

Those are the maximum values for a given speed. In Intel Burn Test the goal is to achieve atleast 70-80% of the maximum value.

So for Q6600@3.3GHz I usually get 43-40GFlops which is around 80%

edit.
realtemp is saying 78% and coretemp 100% have you the latest versions?
Edited by j.col - 2/19/11 at 5:15am
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Old Slow Hand
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post #3 of 12
Thread Starter 
Thanks for the reply.

Yes i have turned off both EIST and C1E. The cpu is currently not overclocked.

I've downloaded Intelburntest 2.5 and i have realtemp 3.6. I followed what you wrote and I pretty much got the same result.

It started off with 100% load in realtemp and slowly lagging off towards 78% after the first 10 seconds.

Here are the screenies







It happened ever since i changed my motherboard, it was fine and i could get it to 3.0ghz without any problem. Now it is not even stable at stock speed

I know this is pretty rare and I'm just throwing it out there, maybe it is just a bad combination?
Edited by FooFoo - 2/19/11 at 9:52am
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post #4 of 12
FooFoo

Try removing some of your RAM. If using 2x2GB, remove one stick and try IBT again. If that does nothing, try with the other stick.

Edit: If you have some other RAM's laying around you could also try them. It may be your motherboard is not liking you RAM. Or they could be faulty. Anyway, as I've said, try one stick at a time.
Edited by turrican9 - 2/19/11 at 10:25am
    
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post #5 of 12
Thread Starter 
Thanks,
so you think it is the ram's fault? well i don have any spare ddr3 lying around but i will give it a go now
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post #6 of 12
thats defiantly sounds like power supply issue it's squealing cause the capacitors aren't up to spec cause the voltages to fluctuate and that why those percentages starting getting erratic. well okay at least it's an idea.
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post #7 of 12
Thread Starter 
I dont think it is power supply coz i just bought a new one, and it only started when i changed my mobo. The sound only happens when i overclock though.

Anyway I just tried running IBT with each stick and one seem to be faster then the other, but the computer still slowed to 12-14 GFlops after 5 runs using one stick at a time from 18-22 GFlops
Edited by FooFoo - 2/19/11 at 9:15pm
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post #8 of 12
try changing back to other mobo.
if the problems are gone, then imo its the new mobo

or with new mobo, try updating the bios. if its the newest bios, then try using an older bios version.
you would be surprised how often this can fix "weird" problems
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Old Slow Hand
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post #9 of 12
Thread Starter 
There is no problem with my old mobo. I just dont want to waste the money that are used to buy this. I probably will swap back to my old mobo sometime soon but im just wondering why this is happening.

But yea, there is only 1 bios released for this mobo
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OCZ Agility 3 120GB Western Digital Cavier Blue  Corsair H60 Window 7 
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post #10 of 12
Have you tried running MemTest86+? Try it. Your RAM's might be having problems but you don't know. For me it does seem like there is something wrong with the timing in IntelBurnTest. Its all messed up and giving different timing. The first thing came in my mind was the power supply to like what someone stated but its weird you said everything was fine with the old motherboard. But wait you said you got the power supply new so was it used also with the old motherboard? Just trying.

Edit:

What were your results with the old motherboard?
Just a suggestion, if you can possibly buy new RAMs go for G.Skill or Kingston. They are better than your RAM's now. But if you can't spend little more money its really alright. Having at least better branded RAM's can help you use till you get the Ivy.
Edited by armen16 - 2/20/11 at 9:45am
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