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Q6600 overclock to 3.0 - 3.2 Ghz

post #1 of 94
Thread Starter 
Hi guys,

Now that I have decided that I'll upgrade a few parts but keep my CPU, Motherboard and RAM, I need real help in how to get this going with Overclocking.

Initially I want to be conservative and reach 3.0 - 3.2 Ghz, but as I get the idea of it I will certainly aim for as much as it can give me as I have excellent mobo/cpu/ram combination.

I just feel so powerless to know that I have the hardware but not the knowledge to get it going!

Can anyone give me a hand with this, where to start, how FSB works, specially in my mobo as I don't quite understand how this "System Memory Multiplier (SPD)" works - e.g. 2.50A? 3.33D? ***!

I have read a lot of stuff, watched a lot of videos on youtube about Q6600 OC but everything I try seems to be a failure. I know that OC requires patience and practice and I guess that's why I am here.

I am currently waiting on parts, I am still running my computer with a stock cooler and a different GPU that doesn't match my sig at this stage but they should arrive this week.

Also my VID is 1.300V

It seems that the real trick is with the RAM setup... This is my RAM:

http://www.xbitlabs.com/articles/memory/display/ddr3-1600-lga1156_8.html

Thanks dudes...
Edited by helipilot - 4/19/11 at 6:44am
post #2 of 94
I'll try and explain how the system memory multiplier works.

Currently you have the 3.33 memory multiplier. If your FSB is 333 then 333 x 3.33 = 1109mhz. If you would raise the FSB to 400 then 400 x 3.33 = 1333mhz. So raising the FSB will also raise your memory speed.

To get 1600mhz memory speed at 266 FSB you need a memory multiplier of 6.0x.
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post #3 of 94
Thread Starter 
ok, I got it now. The problem is that my mobo only allows a multiplier of 4.0x which equals to 1066 at 266 CPU host frequency.

It also attaches to the choice of multiplier FSB 266, 333, 200 and 400.

Lets say I choose multiplier 4.00A, the "A" means FSB266 or 4.00B with "B" meaning FSB333.

With that limitation, the only way it seems possible to increase my RAM speed is by increasing the CPU host frequency...
post #4 of 94
You'll be hopefully hitting a 400FSB and 3.6 CPU when you're done with your OC. You just need to do the math to find the best setting for your RAM, but don't worry about it until you finalize your CPU overclock. AFTER you finalize your CPU overclock, then you'll screw around with RAM multiples.

For now, you'll set the lowest multiple for RAM, and work on raising FSB to OC the CPU. 3.0 should be had on stock VCore. From there to 3.4 you'll need to bump VCore to keep it stable. You may need a notch or two on the NB (MCH Core) above stock volts. For 3.6, you may need 1.45-1.5VCore.

Test the CPU with OCCT at each 100MHz over 3.0. If it fails, bump VCore a notch and re-run OCCT, then repeat. Set your NB at 1.36 for now and VTT at 1.25.

Let us know when you get stuck.
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post #5 of 94
Thread Starter 
Just to help some of you visualise my BIOS, I have attached an image I took with my mobile...
post #6 of 94
Acoma Andy, ***, I haven't seen you in over a year. Well good to see ya!

I haven't used your board but this may help a little http://www.overclock.net/intel-mothe...-ep45-ud3.html

Yeah like 2thAche, mentioned, drop the memory to as slow as you can get it until you OC the CPU.
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post #7 of 94
Thread Starter 
Quote:
Originally Posted by 2thAche View Post
You'll be hopefully hitting a 400FSB and 3.6 CPU when you're done with your OC. You just need to do the math to find the best setting for your RAM, but don't worry about it until you finalize your CPU overclock. AFTER you finalize your CPU overclock, then you'll screw around with RAM multiples.
Sounds good, I might just hold my own for a bit until I get my H70 and then I'll start working on it with the peace of mind that I'll be ok temp wise.

I'll come back to this thread as soon as I start working on it.


Cheers.
post #8 of 94
Quote:
Originally Posted by helipilot View Post
ok, I got it now. The problem is that my mobo only allows a multiplier of 4.0x which equals to 1066 at 266 CPU host frequency.

It also attaches to the choice of multiplier FSB 266, 333, 200 and 400.

Lets say I choose multiplier 4.00A, the "A" means FSB266 or 4.00B with "B" meaning FSB333.

With that limitation, the only way it seems possible to increase my RAM speed is by increasing the CPU host frequency...
Once you get to a higher FSB, you will reach 1600mhz memory speed. First you have to stabilize the CPU overclock anyway.

Quote:
Originally Posted by NoGuru View Post
Acoma Andy, ***, I haven't seen you in over a year. Well good to see ya!
Hey man, I'm checking the forums now and then but don't have as much time as I used to
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post #9 of 94
Quote:
Originally Posted by helipilot View Post
ok, I got it now. The problem is that my mobo only allows a multiplier of 4.0x which equals to 1066 at 266 CPU host frequency.
afaik every one has a multi of 4 (as you always diveide the fsb by 4)

this is a very basic explanation of overclocking

its basic maths. your Q6600 is rated at 1066mhz. you always divide this number by 4 so 1066/4= 266, this is your fsb.
then your processor (cpu) has a multiplier of 9
so 266 x 9 = 2394mhz or 2.4GHz, your stock speed

unlink your ram, so it stays at stock speeds, you can overclock the ram later

can you raise the fsb? yours is now 266. (266 x 9 = 2394mb or 2.4ghz ) try rising it to 280
boot into windows
download realtemp and coretemp (google them)
install and run them
then download intel burn test (ibt) and run it.
have a look in task manager and notice how much free ram is listed.

in ibt set threads to 4 (for 4 cores) and then click on custom ram and enter an amount just below the free amount.
eg. i have 2520mb free ram. so i enter 2500 into the custom ram.
run the test for 5 passes. for now,
and then at final speed you want, run for 50 passes
keep an eye on temps (do not let it go over 75.c)
also you should have in the result, about 30-35gflops at 3ghz
and 35-40gflops at 3.4ghz

if test runs fine, go back into bios, and change frequency (fsb) to 300 and repeat the tests.
keep doing this in 20mhz steps until windows will not boot. then just go back a step (remove 20 from the fsb) to the last stable frequency,
or
just raise the cpu voltage a couple of levels. it should now boot.
its a balancing act, higher voltages will get you higher fsb, but it will also give you higher temps.
my B3 revision Q6600 needs 1.39v in the bios to get to 3.3ghz.
if yours is a G0 revision, you should be able to get this speed at a lower voltage


the trick is to do this step by step, and not go straight to eg. 400 (400 x 9= 3.6ghz), just take your time.

also for some reason using the x9 multi, i couldn't get past 3.9ghz
so i dropped it to a x8 multi and i got it to 3.3ghz easily.
the only thing stopping me is my temps, i hit 73.C ish in IBT.

get the cpu maxed before increasing the ram speed

also if going down this route, please get a proper cpu cooler.
there is a for sale section on this forum.
i bought my tuniq tower 120, used for £12 or about $15.
all i could get on my q6600 with stock cooling was 2.8ghz and it hit 70.c
now i have it at 3.3ghz and it reaches 70.c, that is a big jump, for $15

edit.
looking at your pic.
your multi is set at 8 and your cpu fsb is 400 so 8 x 400= 3200 or 3.2ghz.
your ram is at 1600mhz, is this stock speed? if not then return it to stock speed until you have the cpu stable
Edited by j.col - 4/19/11 at 1:19pm
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post #10 of 94
Thread Starter 
Hi j.col, that was exactly what I needed. That was the light in the end of the tunnel, cheers!

Now I managed to get things going for the first time.

I have unlinked the RAM and used the setup you mentioned. I managed to get 2520Mhz and booted it at the second time. The first time it didn't work so I went back to the BIOS and I set the System Memory Multiplier SPD to 2.50A as I had a guess this would help (Strap FSB to 266 - before it was "auto").

Booted normally Windows 7 loaded perfectly. Actually I am writing this on my OC computer still. I have attached an image of what the tests registered. As you can see the gflops are lower than what you expected, and I am not sure if it could be related to the SPD setting?

Thanks for the advice on the cooler, I am already stopping with this as I can see the temp going 70+ Celsius. Now that I have a clue of what to do I'll just wait for my H70 to arrive, then I'll just keep pushing it until temperature reaches the low 70s. Hopefully I'll be at 3.6Ghz by then.

Quote:
my B3 revision Q6600 needs 1.39v in the bios to get to 3.3ghz.
if yours is a G0 revision, you should be able to get this speed at a lower voltage
That's amazing with a B3. A lot of people say it's pretty hard to get past 3.1Ghz. Fortunately mine is G0 so I have more space to play with it.

Quote:
also for some reason using the x9 multi, i couldn't get past 3.9ghz
so i dropped it to a x8 multi and i got it to 3.3ghz easily.
I'm not sure that I understand you here. You said you couldn't get past 3.9Ghz x9 multi but ok with x8 @ 3.3Ghz? Why not reduce to 3.8Ghz with x9 multi? (I am sure I am missing on some info there or not making my maths calculation lol).

Quote:
also if going down this route, please get a proper cpu cooler.
Yes! Water cooler on the way!

Quote:
edit.
looking at your pic.
your multi is set at 8 and your cpu fsb is 400 so 8 x 400= 3200 or 3.2ghz.
your ram is at 1600mhz, is this stock speed? if not then return it to stock speed until you have the cpu stable
Yes my RAM runs at 1600Mhz stock.

Obviously this is going to be another chapter once I get my CPU to the limit. The good thing is that my mobo and my ram seem to be made for Overclocking. The restriction will be the CPU in terms of how far it will let me go. If I manage to reach 4.0Ghz then I'll be the happiest nerd in this forum

Edited by helipilot - 4/19/11 at 6:11pm
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