RebelTech Hosting Monthly LN2 Overclocking Workshops in Johannesburg, S.A.

Here’s some good news for South African overclockers in the Johannesburg area – tech retailer RebelTech will be hosting open overclocking workshops where novices can get some experience and tutelage about the basics of overclocking and the skills needed to get started with liquid nitrogen. The workshops will be hosted by Elite South African overclocker Jonathan "Oj0" Horne, and will be held every second Wednesday of the month at 6pm in the Fourways area of Jo’burg.

“Rebeltech will be hosting an open Overclocking Workshop that will be catering for all levels of skill. From novice to experienced, Rebeltech are offering PC enthusiasts the ability to master their craft, or simply learn the basics of overclocking. From air and water cooling all the way to dabbling in the dark insulated arts of LN2 overclocking.”

“First off, people wont be thrown into the Liquid Nitrogen deep end. The workshops will progress from demoing air-cooled overclocking, reaching those limits, and then seeing what difference adding a bit of LN2 can do for pushing hardware further. LN2 overclocking is not simply pouring freezing liquid onto silicon, but involves special techniques and tricks to manage the by-product of trying to reach Kelvin—condensation. So, the art of insulating your components will also be taught, something not many locals have much experience with, so it’s a great opportunity to learn.”

You can find more details about these workshops here at


Taiwan sdougal says:

Calling all South African rookies...

Belgium Massman says:

It's the ROG Camp of South Africa, awesome stuff [MENTION=4436]Oj0[/MENTION] :ws: :ws:

South Africa Oj0 says:

w00t w00t :D

South Africa Oj0 says:

So the first session was a big success, with all attending rushing off afterwards to overclock their computers at home :p The hardware used was a delidded 6700K (not a great sample, any form of stability at 6 GHz is unachievable even on one thread, but nonetheless perfect for the purpose), Asus Maximum VIII Extreme, 16 GB HyperX DDR4-2666, an Asus GeForce GTX 980 Ti Strix and trusty Corsair Force LS 120 GB SSD. Cooling was taken care of by the stock cooler from an old Core i3 (the solid aluminium one, no copper slug in the middle) and a Kingpin F1 Dark pot. We started off at the stock 4 GHz at stock VID of 1.278v and worked our way up. Efficiency was not the goal of the game, so it is far from great, but at 4 GHz the baselines were set at 9.267s for SuperPi 1M, 295500 for AquaMark 3, and 873 for Cinebench R15. Our next stop was 4.5 GHz at 1.35v, which resulted in a SuperPi time of 8.407s and an AquaMark 3 score of 332716; Cinebench was asking too much of the stock cooler and failed. I continued to push the frequency (while leaving the voltage at 1.35v) on air cooling until the stock cooler was overwhelmed, with the best being 4.7 GHz for a SuperPi score of 7.907s and AM3 score of 356766. The stock cooler couldn't manage 4.8 GHz no matter what. Next came insulation and some sub zero loving. We took the CPU down to -120'c and I showed that the voltage which failed Cinebench at 4.5 GHz on air cooling could pass 4.8 GHz without an issue thanks to the cold. Easing the frequency and voltage up in small increments resulted in a final of 5.9 GHz at 1.775v for a SuperPi time of 6.344s and AM3 score of 428842, while Cinebench completed at 5.8 GHz at the same voltage for a score of 1230. 6 GHz was a no-go on this CPU no matter what, with it failing to POST or hard locking in Windows even at -170'c and 1.88v. Another oddity I saw with this CPU which I also saw with it on the Z170X Designare is that the CPU has a coldbug at -135'c BUT if Heaven is running I can lower it all the way to -172'c and keep it there indefinitely after Heaven has completed - not something I've ever come across before. A massive shout out goes to Asus for supplying the motherboard.

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