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Overclocking an i7-3770k with stock cooler?

post #1 of 9
Thread Starter 
Hello!

I recently bought a new desktop PC and I was considering maybe overclocking it if possible.
I only have the stock cpu cooler available at the moment as I don't want to ruing my balance completely.

I was wondering if any of you have any experience with the i7-3770k and its stock cooler and would be able to help me decide whether a possible overclock would even be worth it?
When I say worth it I mean in regards to the actual performance boost I will get relative to the extra heat.

Running idle and doing desktop activities the CPU stays at about 30-35 Celsies.
Under full load (stress testing with prime95), according to SpeedFan my CPU is around 50 Celsius and cores range around mid 70-ish.

I'm also curious what the difference between just auto tuning with AI Suite II and doing it manually through the BIOS is and why everyone seems to prefer doing it themselves.

Other:
Asus P8Z77-V Pro
i7-3770k
Stock cooler
Corsair HX650 (Fan squealing, will RMA and replace with HX750)
post #2 of 9
I have seen someone else do a 4Ghz OC with the stock cooler, they were getting 35C on idle and 70C on load. That is lucky i think for the stock cooler. Maybe they just got a good CPU.

I wouldn't recommend anything over 4.2Ghz.
post #3 of 9
Considering you are already at 70C at stock I would probably wait to overclock until you have an aftermarket cooler of some sort. My opinion only of course, good luck!
post #4 of 9
Thread Starter 
How high do I have to overclock it for it to make a noticeable difference when rendering videos? I mainly render my videos in 720p unless it contains some very fine details.
I'm assuming an overclocked processor won't make a big difference when it comes to games, or will it?

What coolers would you recommend? And does overclocking have any cons apart from possible screw-ups on my side?

Lots of questions. biggrin.gif
post #5 of 9
You are probably safe to overclock to 4.2 on the stock cooler, but it really depends on the voltage that needs. I would recommend picking up a $30 CoolerMaster Hyper 212+ EVO and using that - it'll be good for 4.4 or so, and maybe higher depending on voltage.

There really isn't any risk to overclocking as long as you keep the voltage and temps under control. There is the stability risk, but as long as you do proper testing before you do actual production work on the machine, you can pretty much eliminate that. Given how easy it is to overclock the 3770K to 4.2~4.4, you really should give it a shot (once you get a new cooler).

And everyone prefers to do the overclocking themselves because it gives them more control over the settings. You can use Auto settings in the BIOS for most things (including Vcore, as long as you watch what it is providing), but the Auto-overclock tuners often are too aggressive in the voltage and they tend to mess with the BCLK, which isn't really recommended or needed with the K series processors.
Edited by Forceman - 11/13/12 at 12:50pm
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(11 items)
 
  
CPUMotherboardGraphicsRAM
i7-4770K 4.4 (36 uncore)@1.332V Gigabyte GA-Z87X-UD3H XFX R9 290 flashed to 290X @ 1180/1375 16GB DDR3-1600 
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Force Rig
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Hard DriveHard DriveCoolingMonitor
Samsung 830 WD Caviar Black NZXT Kraken X60 NEC 2490wuxi 
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Corsair HX750 Asus Essence STX Beyerdynamic DT880 600 Ohm 
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post #6 of 9
I would not overclock on the stock cooler. If it is the same cooler that comes with the 2600k, it is a pretty weak cooler I would only feel safe with at stock. Get yourself somethign cheap like a coolermaster hyper 212+/evo. THese will only run you about 20-30 dollars and should be good to push you in the ballpark of 4.5 ghz.
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post #7 of 9
Thread Starter 
I see. I might give that cooler a shot sometime in the future then.

What performance increase would I see with a 4.4-ish overclock?
And is that overclock the new boost clock? I mean, will it run at 3.5GHz like it is now, but instead of ramping up to 3.9, it'll go to 4.4?

You're all very helpful, thanks smile.gif
post #8 of 9
Quote:
Originally Posted by gorek View Post

I see. I might give that cooler a shot sometime in the future then.
What performance increase would I see with a 4.4-ish overclock?
And is that overclock the new boost clock? I mean, will it run at 3.5GHz like it is now, but instead of ramping up to 3.9, it'll go to 4.4?
You're all very helpful, thanks smile.gif

Yes that will be the new boost clock, if you overclock via the boost multiplier. You should see around an 18% increase over the 3.8 boost if you overclock to 4.5 ghz.
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I7 2600k Asus P8Z77A-V Pro Gtx 670 Hyper 212+ 
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I7 2600k Asus P8Z77A-V Pro Gtx 670 Hyper 212+ 
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post #9 of 9
Thread Starter 
Sounds reasonable enough. Is fan a lot noisier than the stock fan?
I'm bought a Define R4, mainly because it isn't propped full of windows and LEDs, but now that I actually have it I really enjoy how quiet it is and I'd like to keep it that way if possible.
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