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Help with my CIVF 1090T overclock

post #1 of 9
Thread Starter 
A buddy of mine got me a 1090T Black Edition, the Crosshair IV Formula, 2x4GB HyperX 1600CL9 and some other goodies. (including the OCZ Solid 3 120GB, which is stupid fast, so happy with it).

So I'm in the process of overclocking and testing.

Right now I've got:

Multi: 18
CPU Freq: 220
Turbo Core: Disabled
DRAM Freq: 1467
CPU/NB Freq: Auto
HT Link Speed: Auto

In CPU-Z my DRAM shows as being 735.8 MHz, and the FSB: DRAM at 3:10.

Unfortuantely that means nothing to me, so can someone explain why my DRAM appears to be low?
I need a bit of guidance getting the best overclock out of this system. I don't expect a very high overcock. I intend to try my hand at watercooling in a few months, and then I'll go higher, but for now just something reasonable and stable.

Thanks
Edited by MasterOP - 8/7/11 at 10:07am
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post #2 of 9
Well you need to adjust your CPU Freq,but first you have to lower the multipliers for the CPU,CPU/NB and HT Link.240 ref should give you 1600MHz RAM speed with the 3:10 RAM Divider.
Edited by Redwoodz - 8/7/11 at 10:02am
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post #3 of 9
Thread Starter 
I think I get what you mean but you might have to explain the what and the why a little.

I've changed to this now:


Multi: 17
CPU Freq: 240
Turbo Core: Disabled
DRAM Freq: 1600
CPU/NB Freq: Auto
HT Link Speed: Auto

I'm still not sure why CPU-Z shows DRAM Frequency at 802 MHz. Is it supposed to do that? I really just don't know the relationship between the DRAM as it is shown in the BIOS and the DRAM Frequency as it appears in CPU-Z.
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post #4 of 9
Double Data Rate means 800MHz x2=1600MHz.
It will always show double in actual MHz of what you select in bios.
http://en.wikipedia.org/wiki/DDR3_SDRAM

Now you need to adjust your CPU,CPU/NB and HTT speeds.Can you post a CPUz screen?
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post #5 of 9
Thread Starter 
Here are the CPU-Z shots.

This clearly isn't stable yet because AMD Overdrive stability test failed after 6 mins.

What should my next step be?

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post #6 of 9
Quote:
Originally Posted by MasterOP View Post
A buddy of mine got me a 1090T Black Edition, the Crosshair IV Formula, 2x4GB HyperX 1600CL9 and some other goodies. (including the OCZ Solid 3 120GB, which is stupid fast, so happy with it).

So I'm in the process of overclocking and testing.

Right now I've got:

Multi: 18
CPU Freq: 220
Turbo Core: Disabled
DRAM Freq: 1467
CPU/NB Freq: Auto
HT Link Speed: Auto

In CPU-Z my DRAM shows as being 735.8 MHz, and the FSB: DRAM at 3:10.

Unfortuantely that means nothing to me, so can someone explain why my DRAM appears to be low?
I need a bit of guidance getting the best overclock out of this system. I don't expect a very high overcock. I intend to try my hand at watercooling in a few months, and then I'll go higher, but for now just something reasonable and stable.

Thanks
My advice would be to work you way up slowly.

Most don't know, Windows is autonomous and has to adjust to the new setting each time you change them.

That 1090T should run 3.6/3.75 Ghz at auto volts with no prob.

You will have to up the volts to get to 4.0Ghz.(I am at 1.4 volts)

You can run that NB clock up to 3000 fairly safe.(I am at 3034)

Now most say to keep the HT down to around 2000. I have had no problem with the 2500-2600 range.

That Kingston RAM will run 1600 with DRAM setting at auto. You may turn the volts up a little, no to much, to much will have the adverse effect.

You are going to enjoy this board.

I have a C5F, and as for now, I still prefer my C4F.

Edit: Don't use that AUTO OVERCLOCK garbage. Got to tweek it up slow, that is why it is unstable.
Edited by headmixer - 8/7/11 at 10:49am
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post #7 of 9
Thread Starter 
Maybe I am just rushing it. I went straight for 4 GHz, but that was probably a bad idea wasn't it...

How long should I test at each level before increasing more? An hour of stability testing seems like a lot of time spent, but should I do it that way?

should I put the multiplier up first, or the bus frequency? and how much voltage should I add to the offset when the tests start to fail?

Thanks for the help guys.
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post #8 of 9
Quote:
Originally Posted by MasterOP View Post
Maybe I am just rushing it. I went straight for 4 GHz, but that was probably a bad idea wasn't it...

How long should I test at each level before increasing more? An hour of stability testing seems like a lot of time spent, but should I do it that way?

should I put the multiplier up first, or the bus frequency? and how much voltage should I add to the offset when the tests start to fail?

Thanks for the help guys.
It may take weeks, maybe monthes. I am still tweeking.

I have had this board since Nov 2010.

In Fact, I have done some tweeking today.

You are going to have to find the "Sweet Spot" that place where your CPU,Mobo, and memory all come together in harmony.


As far as running those so called stability test. I HAVE NEVER.

You wouldn't run your car wide open for hours, are your stereo, are your blender, are anything else you own.

Why do this to your PC?

If it work under "NORMAL" conditions, then it works.
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post #9 of 9
Yeah I don't bother with long stability tests.Run a few benchmarks and games-if it works it works.
For your CPUz screens...
4.09MHz @ 1.409v is pretty darn good.Go ahead and bump up the CPUv to around 1.45v.This should stabilize your current clock.
Bump up your CPU/NBv to 1.3 to 1.4v-then set the CPU/NB multiplier up two settings-you should have the NB at around 2800MHz.
Bump the HTTv up to 1.355v and set the HTT to around 2200MHz.

After you get those speeds stablized you should then try and tighten the timings on the RAM.
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