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new to overclocking a qx6700

post #1 of 15
Thread Starter 
just got a new qx6700 and would like to see how much i can get out of this..i have never overclocked anything in my live so i am a bit lost..heres my system specs to help anyone who can help me

intel qx6700@2.66mhz
asus p5b motherboard with bios 1102
corsair TWIN2X2048-6400 with timings of 5-5-5-12
seasonic s12 600watt psu
3 120mm noctua case fans
1 80mm noctua case fan
noctua nh-u12f heatsink/cooler with 2 120mm noctua fans
ati 1950xtx

vista 64bit


any help would be helpful thanks..hope the info helps...
post #2 of 15
first go in a try increasing the fsb to as high as it can go stabely
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post #3 of 15
then once you hit a wall, up the voltage a little and then try upping the fsb, but you have to watch the temps carefully, for as those quad cores heat up alot, and very fast
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post #4 of 15
Thread Starter 
Quote:
Originally Posted by this n00b again View Post
first go in a try increasing the fsb to as high as it can go stabely
but what other settings do i play with..i have read voltages..and stuff like that
post #5 of 15
what you need to get started is right here, this should get you atleast started: by noAffinity ->

Okay, now that we’ve established some basic ground rules, let’s get down to business. First and foremost, get into the BIOS. This is done by pressing the ‘DEL’ button at system startup. Once you are in the simplistic blue screen with all the wonderful (and possibly confusing, if this is your first time or you are still new to OC’ing), take a look around. Familiarize yourself. Read all the listings, and check out their available options. It may not all make sense to you, but it’s good to know where everything is. Something you can’t possibly imagine that you would ever need to change today may come in handy tomorrow.

Now then, let’s establish some basic settings that will apply to all BIOS’s and all overclocking. They may not appear exactly as listed, but it will be something very very similar:

Spread Spetrum – ‘disabled’ (this option may not exist in your BIOS...not of much concern if it doesn't)
PCI/AGP/SATA – ‘fixed’ or ‘locked’ or ‘33/66/100’
Stop unused PCI clock – ‘enabled’

Furthermore, ensure that your “Initial Display Adapter” is set accordingly (i.e. PCI or AGP, depeding on your video card’s interface), and don’t hesitate to disable anything under “Integrated Peripherals” that you are not using (i.e. Serial Port, Parallel port, onboard audio, etc). This will free up unused resources.

Overclock

I will start with some general recommendations/knowledge, and finish up with the how-to.

Okay, so you’re in BIOS, you’ve made a few minor tweaks, as recommended. Now get to the menu that contains CPU freq., CPU voltage, Spread Spectrum, vagp voltage, etc etc. Your stock bus speed is already set. If it is greyed out, find the option to change from ‘auto’ to ‘manual’ that will give you access to such things as CPU freq., CPU voltage, etc. RAM speed may be listed in a different menu (normally Advanced Chipset
Features), so first things first, make sure it is set accordingly. If you have RAM that is rated to run on a faster bus than your CPU (i.e. a 533 mhz FSB CPU in conjunction with DDR400 RAM), awesome, you have headroom. You still want to set it to 1:1 operation, as this will offer the best performance. The exception, of course, is if your CPU is rated to run on a faster bus then your RAM. If this is the case, then set RAM speed accordingly.

Once you start overclocking, there will be three general limiting factors: vcore, RAM and heat. For Northwood chips keep your load temps under 55C and vcore no greater than 1.7v (whichever comes first, let that be your limiting factor). For Prescott chips, 65C load temps and 1.525v should be your upper limits.

Now that we have all that established, the general principles have been outlined and you have a general knowledge of the terms, what you will see in BIOS, and the basic troubleshooting principles for finding your system’s highest stable operating perameters, let’s get going with the actual procedure!!!! Start by upping CPU frequency (CPU speed, FSB) 3-5 mhz at a time. Again, this single setting will affect your entire system bus. Once increasing FSB, boot into your operating system. If you have reached the desktop successfully, then go back to BIOS and repeat until you experience instability (usually in the form of reboots or sytem lock-ups). Once you hit a wall, up vcore one notch. If this doesn’t help, up it another notch (see above paragraph for vcore/heat limitations which should always be adhered to). If upping vcore doesn’t seem to be helping, then you can loosen your RAM’s timings (the higher the number, the looser the timing; so, 3-8-4-4 is the absolute loosest timings you can achieve on DDR RAM. If you see no gains, lower RAM speed (or CPU:RAM ratio/divider). Once you reach the point where you are not exceeding the RAM’s rated operating speeds (or are sure it will run at the current speed), and you are at the upper limit of either CPU temps or vcore, then you have found your CPU’s highest stable overclock. Congratulations! Once this has been achieved, and you are at the desktop at what appears to be a stable level of operation, I would strongly recommend testing stability with memtest (strictly for RAM), Prime95 (good all-around tester which offers torture tests for CPU alone, RAM alone, and overall system stressing), and 3dMark01 (good all around CPU/RAM/VC tester). Hopefully you have achieved an acceptable (in your mind) overclock. We expect some screen shots!

Granted there’s a lot of info here, and it may not all make sense immediately. Don’t hesitate to ask questions, start a thread, rely on the guys that have been at it for a while. We were all newbs once, and I personally have fried more than a couple pieces of hardware (some expected, some not expected). The bottom line, have fun, keep it within the parameters outlined, and if you see something that doesn’t look right (like greatly fluctuating FSB frequency), then shut your comp down, clear CMOS and try again.
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liger-zero
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post #6 of 15
any questions or issues just post, on this thread, im sure other ppl will come along to help you out too
liger-zero
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liger-zero
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post #7 of 15
Any luck?
24/7 BOINC!!
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24/7 BOINC!!
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post #8 of 15
first off thanks for all that info, helped a lot

secondly, I'm pretty familiar with basically any hardware issue or software (I'm a technician for a pc company) but I just started getting into overclocking as well. I have some questions about "running stable." I just formatted my machine and it runs great. I start messing with the FSB etc. and occationally get the blue screen crashes when I push it to far but as for "running stable" I get a little confused. Right now I've got my AMD 2500 XP pushed to 2.04Ghz (started with 1.84) with 1GB RAM. I keep getting those "IE has performed an illegal action and must be shut down, sorry for the inconvience" crap. I get it for IE, Media Player, lots of stuff. Why does that have anything to do with overclocking? I don't get those errors when I run at normal speed (or close to it).
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post #9 of 15
Quote:
Originally Posted by icemanjs View Post
just got a new qx6700 and would like to see how much i can get out of this..i have never overclocked anything in my live so i am a bit lost..heres my system specs to help anyone who can help me
Have a look at this thread I started a few days ago. It's a guide to overclocking C2Q and C2D chips. All the examples are based off my Q6600/P5B-Deluxe system so they should fit quite well w/ your hardware.

You have the advantage of an unlocked multiplier though... if your machine can handle the temps, it should be able to o/c quite well.

Let us know how it's going!
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post #10 of 15
Quote:
Originally Posted by Catchin4bpV View Post
first off thanks for all that info, helped a lot

secondly, I'm pretty familiar with basically any hardware issue or software (I'm a technician for a pc company) but I just started getting into overclocking as well. I have some questions about "running stable." I just formatted my machine and it runs great. I start messing with the FSB etc. and occationally get the blue screen crashes when I push it to far but as for "running stable" I get a little confused. Right now I've got my AMD 2500 XP pushed to 2.04Ghz (started with 1.84) with 1GB RAM. I keep getting those "IE has performed an illegal action and must be shut down, sorry for the inconvience" crap. I get it for IE, Media Player, lots of stuff. Why does that have anything to do with overclocking? I don't get those errors when I run at normal speed (or close to it).
Not enough Vcore.
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