Silicon Lottery

MuX

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16 Haziran 2015
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683
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Vatican City
Hello and morning Technopats! I have been trying to OC my CPU (2600X), recently. And, I wanted to create an OC sharing thread.
As you may have heard, or read there is a thing called "silicon lottery". If you win the lottery, It means you have more OC capable.​

I'll go first, provide you with some background and the results with you. (=​
After a BIOS update, I realized that my CPU was not boosting as it used to be. It was stuck to 4.0GHz and didn't budge a little no matter what I have tried. On my journey to find a solution for this, I read a comment that goes in the lines with "Looks like you have lost the lottery." on another forum. I got mad and brute force my BIOS back to an older version, which again yield no solution. So, I decide to "show" my CPU how to clock "properly".​

I managed to achieve a stable 4.25GHz CPU OC at 1.45v and 3000MHz @1.35v for the RAM with default timings. Task Manager shows the wrong clocks for some reason.​
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Then I run three 3DMark Time Spy benchmarks without any crashes, two without any OC to GPU and one with ever so slight OC to GPU. You can click "Show Result Details" then "Detailed Scores" to see CPU and GPU scores separately.​
One with GPU+CPU OC: https://www.3dmark.com/3dm/35796718
One without any OC for comparison: https://www.3dmark.com/spy/7061361

At this point I couldn't run Cinebench because of overheating. You see, I use the stock Wraith cooler. It's adequate, but not for such an OC. You can see CPU thermal throttle below. Even opening the browser made CPU go over 60C. Running Cinebench R20 froze the system after rendering 24-25 chunks due to overheating.​

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391080

Conclusion; DO NOT try crazy OC's with inadequate coolers, remember to disable "Performance Boost" on BIOS before even trying to OC a Ryzen CPU, and do not get mad. Also, my CPU is pretty much capable to boost up to its rated boost speeds. (=​

It's your turn to share your "crazy" OC's!
 
Son düzenleme:
I had to make a quick choice while choosing my case, which inevitably limited my cooling options. Stock cooler is more than capable for my daily usage. A full RGB custom loop would be amazing though. (=
 
It's your turn to share your "crazy" OC's!

Then my turn it is. This one goes back to the times when I was testing "crazy" overclocks on CPUs with locked multipliers. Back on the Intel side, I reckon I'm still holding the record for the highest clock frequency on an i5-6400 with with room-temperature cooling. Here's my validation link around two years back:
Intel Core i5 @ 5160.05 MHz - CPU-Z VALIDATOR

l can't say I've hit the jackpot in silicon lottery since most 6400s actually perform more or less the same anyway. But it was nice to hit 5.16 GHz regardless, at a modest core voltage of 1.65 V. 🙂
 
Then my turn it is. This one goes back to the times when I was testing "crazy" overclocks on CPUs with locked multipliers. Back on the Intel side, I reckon I'm still holding the record for the highest clock frequency on an i5-6400 with with room-temperature cooling. Here's my validation link around two years back:
Intel Core i5 @ 5160.05 MHz - CPU-Z VALIDATOR

l can't say I've hit the jackpot in silicon lottery since most 6400s actually perform more or less the same anyway. But it was nice to hit 5.16 GHz regardless, at a modest core voltage of 1.65 V. 🙂
Wait, what!? How did you even manage that on a locked CPU? Are you trying to turn your case into an oven, or something? I'm really impressed, yet greatly confused.
 
Wait, what!? How did you even manage that on a locked CPU? Are you trying to turn your case into an oven, or something? I'm really impressed, yet greatly confused.

There used to be a feature/backdoor on Skylake processors. You could flash a tweaked BIOS on (only) Z170 motherboards to allow massive base clock overclocks without having to bother with mulipliers. So I followed the same path to increase my BCLK to 191 MHz which gave me 91% boost on the default 2.7 GHz clock speed.

And no, I didn't turn anything into an oven. The setup wasn't fitted in a case to begin with, it was just an on-the-fly test bench. But more importantly, I delidded the CPU and applied Thermal Grizzly Conductonaut to lower the temperatures by almost 20 degrees.
 
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