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HELP: 1st time overclocker Q6600

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January 24, 2012 7:45:15 AM

Hello everyone,

I have a Q6600 and I need to squeeze a bit more out of it. The thing is I am a total NooB when it comes to overclocking.

I'd like to get a bit more out of it without voltage or memory increase. I believe that is around 2.8?

I'd really appreciate any guide for dummies to the bios step by step to over clocking to the max WITHOUT playing with voltage/RAM speed.

I have attahced CPU -z images

Help is highly appreciated.







More about : 1st time overclocker q6600

January 24, 2012 7:49:11 AM

MrFilmMaker said:
Hello everyone,

I have a Q6600 and I need to squeeze a bit more out of it. The thing is I am a total NooB when it comes to overclocking.

I'd like to get a bit more out of it without voltage or memory increase. I believe that is around 2.8?

I'd really appreciate any guide for dummies to the bios step by step to over clocking to the max WITHOUT playing with voltage/RAM speed.

I have attahced CPU -z images

Help is highly appreciated.

http://img341.imageshack.us/img341/843/cpucpu.jpg

http://img52.imageshack.us/img52/5593/cpumainboard.jpg

http://img814.imageshack.us/img814/7089/cpumemory.jpg

http://img651.imageshack.us/img651/5412/cpuspeed.jpg

a b à CPUs
a b K Overclocking
January 24, 2012 11:00:32 AM



Up the FSB from 1066 to 1333.

Leave everything on Auto.

Enjoy 3Ghz.
Related resources
January 24, 2012 1:42:43 PM

You might be able to bring your CPU higher than 2.4Ghz without increasing your FSB but... why would you not want to increase voltage?

The beauty of the Q6600 is that even an unexperienced user can easily OC a Q6600 to 3Ghz. As for a guide to OCing, i'd recommend Google (search your motherboard's name and add "overclocking", you'll get tones of results (perhaps even videos that'll take your through it).

Good luck.
January 24, 2012 4:54:29 PM

Thanks guys for the responses. So in BIOS increase FSB from 1066 to 1333 is all I need?
January 25, 2012 3:32:55 AM

After looking at BIO I realized asus MB had aLEVEL UP feature that allows automatic overclock. Options it has when selected: QX6700, 6800, 6850 and crazy.

QX6700 = 2.66 Gigahertz, QX6800 =2.93 Gigahertz QX6850 = 3.0 (there is also a crazy option but not sure of its speed)

So does that mean everything else (RAM,Voltage) is adjusted automatically? Anyone familiar with that feature?

So does that mean selecting one of these, it will OC and automatically adjust all other settings?.
January 25, 2012 4:42:56 AM

the only way to oc a q6600 is with a increase to the cpu fsb. the 1066 is the speed of your ram. i have a q6600 running prime 95 stable at 3400mhz with a cpu fsb 377 and a cpu voltage of 1.58750v
January 25, 2012 12:09:34 PM

Hey...make sure you monitor your CPU temp when overclocking. Are you cooling with water or air? If your cooling with air, then your cooling might be your "Bottleneck" sort'of speak.
January 25, 2012 3:47:08 PM

cooling with after market cool master air. I am just not sure if I should use the "level up" feature on the asus mobo which is autamtically oc to 2.6 , 2.8, and 3.0. Will that also increase memory/voltage? Or amI better off going though bios (total Boob)

Thanks for clarification
January 25, 2012 7:09:11 PM

I have oc using level up feature in asus to Q6800 with FSB of 312 = 2.8
Eveything else was on auto.

Prime95 stress test shows temps of core at 86, 84, 78 , 77

Is that too hot? ANy recommendation for what to do next! I really need some expert advice please!
January 25, 2012 7:24:28 PM

MrFilmMaker said:
cooling with after market cool master air. I am just not sure if I should use the "level up" feature on the asus mobo which is autamtically oc to 2.6 , 2.8, and 3.0. Will that also increase memory/voltage? Or amI better off going though bios (total Boob)

Thanks for clarification


I overclocked the FSB and set the processor to 3GHz. Have four of them that have been running at that speed for a couple years. Works great. I did lose a stick of ram on one of them, but that could have been almost anything that caused that. Just bought another.
January 25, 2012 7:33:32 PM

But 90 degrees on 2 cours and mid 80s on the other is high?!

The voltage was set auto at 1.35. So I tried setting lower from 1.15 all the way to 1.31 but it will not boot. SO had to undo the oc and go back to 2.4.

What did I do wrong???
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January 25, 2012 7:54:38 PM

If it ups the voltage using the level up, you cant decrease it and expect to work at the speeds it was trying to run at. Set the level up to whatever speed you want and run prime95 to make sure its stable. If you are getting those kinda temps on your CPU, you need to take off the heatsink and fan, clean the crap thermal wax they put on it and use something from Arctic Silver as thermal grease.
January 25, 2012 8:01:50 PM

I have after market coolmatser and before OC it is idle at 40. But with Prime95 stress test it jumps to 90 on 2 core and mid 80s on other 2. Is this a normal temp for stresst test.

Keep in mind I am only OC to 2.8.

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a c 334 K Overclocking
January 25, 2012 8:13:28 PM

I have the same chip. Also, you should read the Core 2 overclocking sticky, it would be of great benefit to you.
http://www.tomshardware.com/forum/259899-29-core-overclocking-guide

In short, change your FSB from 266 to 333. No voltage change, and you get 3.0ghz.

I'm running mine at 3.6ghz right now, but obviously with voltage bumps and different settings.
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January 25, 2012 8:21:48 PM

MrFilmMaker said:
I have after market coolmatser and before OC it is idle at 40. But with Prime95 stress test it jumps to 90 on 2 core and mid 80s on other 2. Is this a normal temp for stresst test.

Keep in mind I am only OC to 2.8.


Im not saying to replace your fan and heatsink, im saying to take it off and clean off the thermal wax garbage they put on the back that they try and pass off as thermal grease. Clean it til it shines, apply a small BB sized amount of Arctic Silver to the middle of your CPU and put the heatsink back on. Use Ceramique if you are new at using thermal grease as it doesnt conduct electricity.
January 25, 2012 8:24:34 PM

Leave the voltage alone, up the FSB to 400 for !:! and drop the multi to 8 from 9, 3.2 for 3 years straight like that
January 26, 2012 1:21:17 AM

Yes 90 degrees is way too hot
January 26, 2012 4:09:06 AM

The coolmater I just added a few months ago. CPU was overheating and after adding new cooler, temps idle are upper 30s low 40s.

So to jump to 90s (prime95 stresst test) with only 2.8 oc seems odd. SO maybe there is a setting that is generating al the extra heat?
January 26, 2012 5:48:28 AM

after looking closer at your cpuz i noticed that you underclocked your cpu! im sorry but its all wrong, you have your multiplier at 6 with a bus speed of 267 which gives you a cpu speed of 1603mhz. your going to burn out your cpu if you keep giving it the normal 1.35v at that low of a speed, thats why its running so hot. try a multiplier of 9 and a bus speed of 333 which will give you a speed of 3ghz. good luck!
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January 26, 2012 7:18:30 AM

deadlee690 said:
after looking closer at your cpuz i noticed that you underclocked your cpu! im sorry but its all wrong, you have your multiplier at 6 with a bus speed of 267 which gives you a cpu speed of 1603mhz. your going to burn out your cpu if you keep giving it the normal 1.35v at that low of a speed, thats why its running so hot. try a multiplier of 9 and a bus speed of 333 which will give you a speed of 3ghz. good luck!


This is untrue.

First - Its instel SpeedStep technology that is dropping his CPU Speed.

Second - It doesnt matter if your running 900mhz @ 1.35v it is still going to run cooler and last longer than @ Stock or OC.

The last bit is a repeat of what we have said.
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a c 197 K Overclocking
January 26, 2012 8:15:31 AM

deadlee690 said:
i have a q6600 running prime 95 stable at 3400mhz with a cpu fsb 377 and a cpu voltage of 1.58750v

1.58 volts is too high.

deadlee690 said:
after looking closer at your cpuz i noticed that you underclocked your cpu! im sorry but its all wrong, you have your multiplier at 6 with a bus speed of 267 which gives you a cpu speed of 1603mhz. your going to burn out your cpu if you keep giving it the normal 1.35v at that low of a speed, thats why its running so hot. try a multiplier of 9 and a bus speed of 333 which will give you a speed of 3ghz. good luck!

:lol:  :lol:  :lol: 
That is SpeedStep automatically reducing your internal multiplier during low CPU loads. It also reduces your CPU voltage.

I see a lot of wrong answers in this thread.

The stock cooler is good for 3.0 GHz. Anything higher will require better cooling. The Hyper 212+ EVO is a great choice for around $40.
Suggests for appling thermal compound:
http://benchmarkreviews.com/index. [...] mitstart=0

Run your internal multiplier at max (X 9). That will minimize the load on your memory. After the CPU, memory and bad memory settings in the BIOS will be the second limiting factor in your overclock. Third will be your motherboard. Fourth will be your case and cooler.

This should be your first stop.
Core2 Overclocking Guide (generic guide based on an Asus motherboard)
http://www.tomshardware.co.uk/forum/259899-11-core-over...

Next stop should be a guide for your particular motherboard. Google is your friend.

Go through the guides. Then take your core voltage off Auto and set your memory voltage to 2.2 volts. Change the System Memory Multiplier (or whatever your BIOS calls it) from AUTO to 2.00 - whatever you need to do to set the Memory Frequency to twice the FSB. Then when you increase the FSB, the memory clock will rise in in proportion with it. At an FSB of 266 MHz, your memory clock should be at 533 MHz. A 2:3 ratio means that your FSB freq is 266 MHz and your memory clock is at 800 MHz.

This is important because if you leave your memory settings on Auto, DDR2-800 RAM will be running at DDR2-1000 speeds (or trying to) when you increase your FSB frequency to 333 MHz. You also want to keep the FSB:RAM ratio at 1:1. There are no practical gains to overclocking RAM in a Core2 systemand the improved stability is worth it.
Overclocking RAM:
http://www.tomshardware.com/forum/251715-29-ratio-myth

I am unfamiliar with the Asus X48 BIOS (I use G'byte boards) so I cannot give you any advice on what settings to use. Learning to use the BIOS will enable you to overclock both farther and better.

Intel's max recommented voltage for the Q6600 is 1.50 volts. Max recommennded load temps is about 70 C.

Turn off Speed Step while you are working out your BIOS settings. Once you have finished testing, reenable it. There is no point to running at full speed when you do not need to.

I have a Q6600 in a G'byte EP45-UD3L, TRUE cooler, Antec 900 case running at 3.6 GHz. Stock voltage 1.2625 volts increased to 1.425 volts. Load temps are 61 C - 66 C, Prime95 stable after 24 hours.

There's a lot of discussion about how long you need to run P95. Consensus is 4 - 8 hours is adequate. I am just a little fanatical about stability. Start with the small fft's test. 15 minutes will maximize the core temps. Run it for about an hour. Then change to the blend tests. This will do a better job testing the memory settings. When they both run for an hour, you can start the final testing for as long as you see fit.

Keep in mind that these are guides, not cookbooks. YMMV. Because of all the variables, you may not do as well as someone else with a similar system. Or you might do better.
----------
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz
a b à CPUs
a b K Overclocking
January 26, 2012 8:56:11 AM

Listen to Rubix & Jsc

I've been in a few Q6600 threads with these 2 and they are extremely knowledgable in the subject.

Ive had one of these since release and was hindered by a 680i Chipset. So many hours of tweaking.
a c 172 à CPUs
a c 197 K Overclocking
January 26, 2012 9:35:35 AM

Yes, me to. And that is why I finally gave up on the 680i and went to Intel based G'byte boards.
January 26, 2012 10:34:29 AM

Thanks guys, I really appreciate the great help. I think the coolmaster is ok as temps are upper 30s idle. So if I understand correctly, the high temps are caused by vcore and fsb increase. I only increased fsb to 312 to give me 2.8. So I am trying to narrow it down to what caused the spike in tempsafter oc. So to lower temp I need to manipulate one or both of these components right?
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a b K Overclocking
January 26, 2012 11:17:04 AM

Vcore is the biggest culprit, but upping the FSB also increases the temperatures due to the transistors doing more work (moving faster) which in turn creates more heat (Simple physics).

If you want to keep the longevity of the Chip intact lower the Vcore as much as possible whilst keeping the OC stable.

The spike shouldnt have happened at all. Run Prime 95 and tell us your max temps. If they are in line with what we deem safe for a Q6600 then you'll be fine.
January 26, 2012 2:28:11 PM

I had to sop Prine 95 after 45 minutes as temperature on 2 cores climbed to 90 while the other 2 cores rose to mid 80s. FSB was changed to 312 to gain 2.8 speed and voltage was left at auto which ended up being 1.35.

So I lowered voltage to 1.31 but could not get PC to start. So had to take it back up to 1.35.

Memory DDR2 was at 733.

Given 2.8 is a moderate OC, I am not sure why I am having a challange here.

Any ideas?
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a b K Overclocking
January 26, 2012 2:31:56 PM

You may want to restart the entire process of installing your Cooler.

I suggest buying some TIMClean Isopropyl Alcohol and cleaning the old thermal paste off the CPU and the Heatsink, buying some good thermal paste (AS5, Artic Ceramique, MX-2 etc etc) - Re-applying using the Pea method and reinstalling the CPU Cooler. Test the temps after that.
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January 26, 2012 3:28:38 PM

Made that suggestion yesterday, system sounds fine, cooler does not.
January 27, 2012 5:09:36 AM

speedstep should have been turned off before he started overclocking and 1.5875v is not to much. i have been running it that way for almost 4yrs no problem. when all 4 cores are under load the voltage dips a bit so its not as high as it sounds. i'm also running a 360 rad h20 set up which helps keep the temps in the mid to high 50s. i will say 1.5875v is about the limit of what i consider safe though. how can anyone say using to much voltage "or force" on a circuit is safe?
January 27, 2012 5:19:10 AM

edit, sorry i ment when underclocked how can to much voltage be safe?
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January 27, 2012 7:31:00 AM

deadlee690 said:
speedstep should have been turned off before he started overclocking and 1.5875v is not to much. i have been running it that way for almost 4yrs no problem. when all 4 cores are under load the voltage dips a bit so its not as high as it sounds. i'm also running a 360 rad h20 set up which helps keep the temps in the mid to high 50s. i will say 1.5875v is about the limit of what i consider safe though. how can anyone say using to much voltage "or force" on a circuit is safe?


This is unsafe and irresponsible advice.

My limit is 1.4v for Q6600s and that would be with very high end cooling.

1.5v can be done but I would only reccommend that with Sub-Zero cooling to offset the voltage degridation.

1.58v will cause extreme degridation to anyones chip regardless of running temperature.

Oh and if Speedstep has to be disabled the overclock isn't 100% stable.
January 28, 2012 6:07:12 AM

deadjon said:
This is unsafe and irresponsible advice.

My limit is 1.4v for Q6600s and that would be with very high end cooling.

1.5v can be done but I would only reccommend that with Sub-Zero cooling to offset the voltage degridation.

1.58v will cause extreme degridation to anyones chip regardless of running temperature.

Oh and if Speedstep has to be disabled the overclock isn't 100% stable.


intel rates the Q6600 for up to 1.5v but if you like 1.4v as your limit thats fine to. as you know the Q6600 is built on a 65nm process and is more durable and less likely to suffer from the effects of voltage degridation than the newer i5 and i7 chips. i am new to the forums but i been a hardcore overclocker for 9yrs. if you would please go back and read reviews of cpus and 775 mobos from 4yrs ago you might find that over 1.5v and under 1.6v is considered safe. while i dont think we will change each others minds i just wanted to post this, best of luck to you
a c 172 à CPUs
a c 197 K Overclocking
January 31, 2012 7:06:56 AM

On the other hand, you cannot argue with Intel's recommendations. You can however ignore them. :) 

And in my case, my Q6600 ran out of core speed at 1.425 volts.

Only 9 years, huh? Newbie. :) 
----------
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz :D 
!