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Customer Review

113 of 122 people found the following review helpful
5.0 out of 5 stars Awesome CPU!!! Don't be scared of higher OC temps!!!, May 1, 2012
This review is from: Intel Core i7-3770K Quad-Core Processor 3.5 GHz 8 MB Cache LGA 1155 - BX80637I73770K (Personal Computers)
-SETUP-
CPU: Ivy Bridge i7-3770k
HEATSINK: Noctua NH-D14
MB: Asus Maximus V Gene
GPU: EVGA GeForce GTX 680(OC'd to 1286Mhz core clock & 3400Mhz memory clock. AC Twin Turbo II heat sink installed)
MEM: 16GB Mushkin Enhanced Redline 2133Mhz(OC'd to 2400Mhz)
SDD: 2x 240GB Mushkin Chronos Deluxe in RAID0
PS: Seasonic 1000W 80+ Platinum
CASE: Fractal Design Define Mini

-OVERCLOCKING-
As we all know, Ivy Bridge runs pretty hot overclocked when compared to its predecessor Sandy Bridge. Arguments have been made as to the reason of this and it may be due to its newly implemented 3D transistors or because it uses thermal paste as a conduit between the heat shield and the CPU die or maybe its due to a combination of both. Regardless, IF you plan to overclock this sucker YOU WILL NEED A 3RD PARTY COOLER!!! Whether it be water cooled or air cooled or even cooled by ln2, do your research and find a good heat sink!

Most reviewers are reporting that you can reach a decent overclock of 4.6Ghz at around 1.275 - 1.300 volts with temperatures reaching the 85-90C mark during stress tests. This is considered NORMAL because Ivy Bridge is more resilient to high temperatures than Sandy Bridge. To be safe and to lessen CPU degradation, aim for no more than 1.5v and MAX load temps ~90C. For the majority of people out there, this type of overclock should suffice.

-RESULTS-
Currently I am running my CPU at 4.6Ghz at 1.300v for the extra headroom. Here are the temperature results during stress tests:

NH-D14 in "normal mode"(~1300RPM)
Intel Burn Test: 85-92C
Lynx: 80-85C
AIDA64: 70-75C
Prime95: 75-80C

NH-D14 in "silent mode"(~900RPM)
Intel Burn Test: 90-95C
Lynx: 85-90C
AIDA64: 75-80C
Prime95: 80-85C

The temperatures were about 4-5 degrees cooler in normal mode.

-CONCLUSION-
In the end, this processor proves to be a true successor to Sandy Bridge due to its performance increase and lower power consumption; however, these performance increases are marginal at best. This means that if you're thinking about upgrading coming from a 2600k or 2700k, don't bother. Unless you absolutely need to have the latest hardware or if you want features such as integrated PCI-E 3.0, USB 3.0, higher memory bandwidth, HD 4000 graphics, etc... keep your Sandy Bridge. IMO, you shouldn't upgrade your CPU unless you're at LEAST 2 generations behind. I upgraded coming from a Yorkfield Q9550 and am very happy with the noticeable performance boost. Though temperatures are higher than what we're used to seeing, it doesn't mean that it's a bad thing, it's just different. So don't let high OC temps shy you away from this great piece of hardware. Great product Intel!!! A++

-UPDATES-
04/29/2012
- Bought the product

05/02/2012
- Managed to get it stable at 1.280 volts at same 4.6Ghz. New temps are all 5C cooler!!!

05/17/2012(FINAL)
- Reduced to 1.21 volts at same 4.6Ghz.
- Highest load temp was 85C while fans were in silent mode.
- Reduced memory clock to stock speed(2133 Mhz), and timings(9-11-10-28) to run prime95 for ~16hrs. Overclocked them back to 2400Mhz 10-12-11-32 after stress testing since they run just fine. No BSODS or random crashes. If I do experience any issues with stability, then I know I need to clock the memory back down, otherwise I'll keep the extra speed.
- No updates shall be added unless something drastic occurs.
- Remember, running stress tests on a new PC is done only to test stability. In a realistic environment, you will not be running your machine at 100% load 24/7 unless you're folding proteins or something. On a normal day of playing games, surfing the internet, listening to music, watching moves, etc... my CPU does not go above 70C and averages around ~60C.
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Showing 1-10 of 13 posts in this discussion
Initial post: May 1, 2012 11:04:43 AM PDT
Last edited by the author on May 1, 2012 11:12:07 AM PDT
J. makela says:
[Customers don't think this post adds to the discussion. Show post anyway. Show all unhelpful posts.]

In reply to an earlier post on May 1, 2012 3:12:23 PM PDT
lawpnoy1 says:
This CPU is the 3770k with an unlocked multiplier so the whole point of buying it would be to overclock it. If you're not going to overclock your CPU, then by all means buy the 3770 version with a locked multiplier to save you an extra 40-50 bucks. As for the reasons of overclocking an already powerful CPU:

1.) To maximize the potential of a product you already paid a lot for
2.) It's like a "free" mini-upgrade(you need a better heat sink)
3.) It's a hobby
4.) Bragging rights

Most importantly, I find it enjoyable finding out what my machine is truly capable of. The PC enthusiast inside all of us yearn for this type of enjoyment.

Posted on May 1, 2012 6:29:27 PM PDT
X. Hung says:
Ok i live in a very hot place temps reach 40 ºC in summer, so i think this processor ain't a good a idea for this part of the world, i just cant alow a pc component to be reaching 95 - 100ºC that's a freaking kitchen, better to avoid this

In reply to an earlier post on May 2, 2012 6:28:44 AM PDT
lawpnoy1 says:
Just don't overclock it and you'll be fine. I assume that you'd be not overclocking any other CPU you would buy anyways if it gets that hot where you live.

Posted on May 2, 2012 8:57:50 AM PDT
nako says:
Just a couple comments on heat:

1. Integrated heat spreader/internal thermal paste is not causing any problems. This was disproven when people saw no change in temp after going straight to the die with their heat sink. This deductively proves the cause of temperature readings is the smaller chip size running at similar power (power density increased, but power is slightly lower - you don't need bigger heat sinks, which only care about power).
2. AnandTech/HardOCP consensus seems to be that no chips accurately report temperatures, especially in the mid-range. The only important thing to concern yourself with is how far away from the maximum you are, and IVB max is 5 degrees higher than SNB.
3. Even at 100 degrees Farenheit ambient temperature, you have something like 120 degrees F of room to allow for your chip to heat up. Most after-market heatsinks will keep you below that with 10-20% overclocks. All CPUs will automatically throttle themselves to keep below the limit, even without a heatsink on.

In reply to an earlier post on May 2, 2012 9:07:57 AM PDT
J. makela says:
I use a Cooler Master V8 to keep the cpu cool

Posted on May 17, 2012 10:01:46 PM PDT
Carlos says:
Hi, I currently have an AMD Phenom II x6 1100t and was thinking about upgrading. Would it just be better to upgrade to a 2500k or 2600k (microcenter has them cheap at around 280 $)? Also, if I get it, I plan to overclock, but i don't need to get a maximum one, maybe more around 4.1 or 4.2 ghz on air. Would the temps be significantly different or no? Despite what intel says about it being more heat resistant i find anything more than 80 celcius way too hot for a CPU, especially since my room can get up to 9 degrees farenheit during the summer.

In reply to an earlier post on May 19, 2012 1:22:40 PM PDT
Daniel Duedu says:
Yo! i love your build. I am using a 2600k ovaclocked to 4.7Ghz n cooled by a Noctua Nh-D14. My highest cinebench 11 score is 9.45 and i achieved that at 4.85Ghz, Whats your highest sore?

In reply to an earlier post on May 23, 2012 9:32:09 AM PDT
lawpnoy1 says:
Both the 2500k and 2600k are great chips! They have been proven to overclock very well and very easily. ~4.2Ghz on air will be extremely easy with these chips and you really should not have any heat issues; however, if you're thinking of upgrading, why not go with ivy bridge? It's default turbo frequency is 3.9Ghz and when you run it at these stock voltages, they run very cool @ ~50-60C. Overclocking to 4.2Ghz is easily attained and can be done at very low voltages. Remember, Ivy Bridge temps are heavily determined by your VOLTAGES. Also note you will never be running your computer at full load 24/7. On a normal day playing video games, my cpu gets to about 70C highest and averages around 55-60C.

Posted on Sep 21, 2012 11:43:09 PM PDT
SP says:
I'm surprised at your suggestion of no more than 1.5v. Do they overvolt better than Sandybridge? I thought it was the opposite. 1.5v in SB makes me VERY nervous, so I generally avoid going above 1.35 or 1.4. 1.5v only if I'm just trying to get a "brag" screenshot of an overclock and my watercooling temps. I just got a 3770k for a customer build, with a Hyper 212 Evo, and I'm currently at a stable 4.4 at 1.16v, though Prime95 temps are hovering at 80C. I've tried a few clocks that required 1.2-1.3v and the temps just skyrocket on this air cooling.
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