My stress test results for the i7 4790k chip are in. Please share your thoughts.
My stress test results for the i7 4790k chip are in. Please share your thoughts.
Good morning everyone... I just installed a new PC and started testing with an OC on my CPU.
Here’s what my setup looks like:
CPU: Intel i7 4790k 4.0Ghz
Water Cooling: Corsair H80i GT
RAM: 16 Gigs at 2133 MHz
Motherboard: ASRock Z97 Killer
GPU: Evga Nivdia GTX 970
I overclocked it to 4.7 and felt a bit nervous about possible instability.
After 10 minutes of testing, the results were:
CPU Temp Max was 90°C
CPU Temp Avg was 80.8°C
It’s gradually increasing... Should I worry?
Your Vcore is set at 1.401
What do you think?
I'm not sure if it's running in performance mode... I'll verify when I get home. Thanks to everyone for your advice and thoughts... This is my first experience with Intel, though I've been using AMD for a long time. I'll check my cooler to see if it affects performance. Could that make a noticeable difference? In temperatures? Yes, by just a few degrees. For some reason, the link didn't work. Here it is again. Look at the temperature differences between the two modes.
http://imagescdn.tweaktown.com/content/7...eview.pngr
Another link shows a test with a 4.6GHz overclocked 4790K reaching up to 73°C:
http://www.guru3d.com/articles_pages/cor...ew,11.html
Of course your...
I wouldn't expose the voltage to such extremes for continuous operation. A range around 1.3 volts (just a little higher is acceptable) is much safer and won't greatly reduce the chip's lifespan. Anything above 1.35 volts risks causing long-term damage.
Way too much Vcore and heat for extended periods. Avoid running it at maximum levels. When increasing performance, raise the multiplier slowly by one level at a time and perform stress tests without adjusting the Vcore. If you encounter a crash, you’ll understand your safe voltage limits and can adjust them gradually.
Keep in mind that I only need 1.3v on my overclocked i5 4690K to reach 4.7GHz turbo, which is a significantly higher jump compared to the 3.9GHz from 4.4GHz. Additionally, other factors matter, such as the quality of your chip. Better processors require less voltage to overclock (often called winning the silicon lottery). Lastly, it’s wise to try different multiplier settings versus BCLK or bus speeds (for example, 44x and 102 BCLK = 4.5GHz, similar to 45x and 100 with 4.5GHz).
A few final observations:
1) From the days of building and overclocking with the Celeron 333 MHz (simple 500MHz jumps) in the late 90s, modern chips with smaller manufacturing processes have reduced their overclock performance gains. Yet, they still offer higher base and boost clocks—like the 4.0GHz and 4.4GHz boosts for the 4790K, which was rare just five years prior, as seen in Sandy Bridge).
2) For gaming purposes, such extreme overclocking isn’t essential and usually only offers minor FPS improvements at 1440p and ultra settings, where the GPU bears most of the load.
OK so I adjusted... apparently my temperatures stayed elevated. That's why I lowered my CPU Clock by 100mhz.
At 4.6 vcore was 1.23, cache ratio at 40%, max temp reached 79, and average was 75.8.
I ran AIDA64 Stability Test for 45 minutes, and it seems stable at that temperature for most of the test.
Are these values acceptable?
Let me know if you need more details to form an opinion.
Rochound1 :
OK so I respec'd... for some reason my temps were were still high... So I decided to drop my CPU Clock 100mhz.
So at 4.6
vcore at 1.23
CPU cache ratio at 40
MAx Temp was 79
Average Temp was 75.8
Ran AIDA64 Stability Test for 45 min and thats seems to hold at that temp for the vast majority of the test. Are these number good? Let me know if you need any other additional information to make an inform opinion.
MUCH better and more in line with the normal overclock expectations of a 4790K, specifically with Vcore needs. I'm a little surprised though at your Corsair H80i GT not doing a better job of cooling though compared to results I've read on websites testing it. Here's a good link for reference (they used an older overclocked 4770K). I assume you are using that cooler in performance mode?
I'm not sure if it's running in performance mode; I'll check when I get home. Thank you all for your advice and opinion... This is my first time with Intel, though I've been using AMD for a long time. I'll look at my cooler to see if it's in performance mode. Could that make a big difference? In temperatures, if it is on?
I'm not sure if it's running in performance mode... I'll verify when I get home. Thanks for all the suggestions and feedback... This is my first experience with Intel, though I've been using AMD for a long time. I'll check my cooler to see if it affects performance. Could that difference be noticeable? Especially in temperature readings?
Yes, maybe a few degrees. For some reason, my link didn't work. Here it is again. Look at the temperature differences between the two settings.
http://imagescdn.tweaktown.com/content/7...eview.pngr
Another link shows a test with a 4.6GHz 1.3v overclocked 4790K reaching up to 73°C:
http://www.guru3d.com/articles_pages/cor...ew,11.html
Of course, your room temperature also plays a role (the Guru3D link mentioned 21°C/70°F).