7700k OC @ 1.12V

[AlexG.Tech]

On my 7700k, I was able to reach a max of 5252 MHz at 1.37V stable, but was ridiculously hot. I then opted to go silent by lowering the frequency and voltage down. I am pretty sure I've hit the silicon lottery with a stable OC'd 7700k set to 4.8GHz at 1.120V. I don't have a GPU yet, so I'm using the integrated Intel HD 630, overclocked to a ratio of 28 at 1.4V at 3030MHz. My temps never go above 70C on the CPU, with my fan curve set so my fans never go above 1000 RPM. It is nice and quiet! Have I hit the lottery?

Specs:

CPU: 7700k at 4.8GHz 1.120V
GPU: Intel Graphics HD 630 at 1.4GHz 1.4V
Mobo: Asus Maximus Hero IX (z270)

CPU AIO: Corsair H100i-v2 at less than 1000RPM

Case: NZXT H440 Razer Edition
PSU: EVGA Supernova 650W (80+ Gold)
RAM: Corsair Dominator Platinum DDR4 3000MHz 32GB (16GB x2)
SSD/M.2: Intel 600p Series NVMe 256GB
HDD: WD Green 1TB + old drives less than 200GB for Windows recovery/backups



What kind of stable frequency and temps are you seeing at 1.2V?

[AlexG.Tech]

Wow I'm dumb... I meant 1.120V  woops

[Lays]

1 hour ago, AlexG.Tech said:

On my 7700k, I was able to reach a max of 5252 MHz at 1.37V stable, but was ridiculously hot. I then opted to go silent by lowering the frequency and voltage down. I am pretty sure I've hit the silicon lottery with a stable OC'd 7700k set to 4.8GHz at 1.120V. I don't have a GPU yet, so I'm using the integrated Intel HD 630, overclocked to a ratio of 28 at 1.4V at 3030MHz. My temps never go above 70C on the CPU, with my fan curve set so my fans never go above 1000 RPM. It is nice and quiet! Have I hit the lottery?

Specs:

CPU: 7700k at 4.8GHz 1.120V
GPU: Intel Graphics HD 630 at 1.4GHz 1.4V
Mobo: Asus Maximus Hero IX (z270)

CPU AIO: Corsair H100i-v2 at less than 1000RPM

Case: NZXT H440 Razer Edition
PSU: EVGA Supernova 650W (80+ Gold)
RAM: Corsair Dominator Platinum DDR4 3000MHz 32GB (16GB x2)
SSD/M.2: Intel 600p Series NVMe 256GB
HDD: WD Green 1TB + old drives less than 200GB for Windows recovery/backups



What kind of stable frequency and temps are you seeing at 1.2V?

What are you stability testing with? 

[done12many2]

Why is there this new outbreak of "how fast can you go at this low voltage" threads?  

 

To be honest, nobody cares how fast a chip can clock at some random low voltage as that was never what the "Silicon Lottery" was about.  How fast will your CPU go with ambient cooling methods period?  That really all that matters.

 

It seems like people are now testing how fast their CPU can go, which is what most use for determining if their chip is a "silicon lottery" winner and if that doesn't work out they switch to "well I wonder if I can beat anyone a 1.002v".  

 

Something I can tell you with absolute certainty.  You were not running "5252 MHz stable" with any substantial load using a H100i unless you had the radiator laying in a bucket of ice and even then, at that voltage it probably still didn't happen.

[AlexG.Tech]

On 2/7/2017 at 6:14 PM, Lays said:

What are you stability testing with? 

Aida64, Geekbench, Asus Intel etu, CPU-Z stress test, Prime 95, The furry donut gpu test, and combinations of multiple at once, including BOINC distributed computing tasks. Most running for hours, but it is absolutely rock solid at 4.8GHz@1.12V. I hit 74C on the cpu package once, because ambient was 28C. I am still considering de-lidding the CPU to stay at least above 5GHz 24/7, just for bragging rights, naturally. lol

[Lays]

43 minutes ago, AlexG.Tech said:

Aida64, Geekbench, Asus Intel etu, CPU-Z stress test, Prime 95, The furry donut gpu test, and combinations of multiple at once, including BOINC distributed computing tasks. Most running for hours, but it is absolutely rock solid at 4.8GHz@1.12V. I hit 74C on the cpu package once, because ambient was 28C. I am still considering de-lidding the CPU to stay at least above 5GHz 24/7, just for bragging rights, naturally. lol

You're not at 1.12v if you're hitting 74c with an h100i lol. Your sensors are reading your voltage wrong, you're most likely looking at VID, not vcore voltage. 

[AlexG.Tech]

18 minutes ago, Lays said:

You're not at 1.12v if you're hitting 74c with an h100i lol. Your sensors are reading your voltage wrong, you're most likely looking at VID, not vcore voltage. 

I do have my Intel HD 630 IGPU set at 1.4V, and the temps only rise to that level when the woodstove in my house is cooking me at over 83F/28C, so that is probably the cause. I did set the voltage in the CMOS settings manually. Plus I am running everything at relatively low RPM, so I think that's the cause for the temps