“Scalping” CPU Core i7-7700K have lowered the temperature by 30 °C – 3DNews

a few weeks before the official announcement of desktop processors Intel Core 7th generation (Kaby Lake-S) we know almost everything about the individual models and the cost of these CPU. Experiment with overclocking Quad-core flagship series — Core i7-7700K — the Network also abound. However, no one so thoroughly did not come to the point of squeezing all the juice out of the i7-7700K, as a veteran conference AnandTech under the pseudonym RichUK. His experiences with overclocking mate model Core i7-6700K lasting more than two and a half weeks and not yet completed.

By default, the Core i7-7700K running at a frequency of 4.2-4.5 GHz, has 8 MB cache in the third level, dual-channel memory controller DDR4 and graphics GT2. The TDP of the chip is 95 watts. New CPU supported motherboards Intel 100th and 200th episodes, and this took RichUK, utilizing an ASRock Z170 Pro4S.

Preliminary tests showed that overclocking the CPU to 5GHz even one minute test in Prime95 leads to overheating, so the experimenter decided to remove the back cover (“scalping”), which carried out the most reliable method shift. The crystal was discovered layer of thermal paste: the solder mass is not used CPU Intel since Sandy Bridge.

Processor and its cover after cleaning

To optimize heat dissipation in the crystal Core i7-7700K was applied a thin layer of liquid metal, which left a uniform imprint on the lid. Such manipulation processor-risky and performed by an Amateur, is likely to lead to loss of guarantee (if not worse), but the regular forum AnandTech was confident in his skills.

Core i7-7700K: to replace the thermal interface

Core i7-7700K: after replacing the thermal interface

the Result of “scalping” impressed many: the maximum temperature in the stress test with Prime95 the CPU frequency to 5 GHz and a voltage of 1,344 In was reduced from 96 °C to 66 °C.

to search For the limits of overclocking Core i7-7700K enthusiast RichUK stopped at DLC X62 with NZXT Kraken 280mm aluminum radiator. This cooling system is evaluated by the foreign stores of $ 159,99 €159,99 respectively for U.S. and Western Europe.

the start Windows normally and “skrinshoty” acceleration was possible at a frequency of 5.4 GHz. Some of the tests the serial instance of Core i7-7700K was held at the 5.1–5.2 GHz, and the test in Prime95 at 5 GHz it failed after as much as 7 h 18 min (aging tester can only envy). Perhaps others overclockers have more luck, but as we see, the stable 5-GHz overclocking even “scalped” Core i7-7700K with liquid cooling is not guaranteed to anyone. It is also important that many followers RichUK will have to raise the voltage of Vcore on the i7-7700K is more than 10 % — up to 1.4 and above.

Maximum acceleration

Prime95 “knocked out” logical – Core i7-7700K on the eighth hour of stress testing

Blitz performance testing of the new processor has shown that at 5 GHz it is gaining 1029 points Cinebench R15, and a nominal of 4.2–4.5 GHz — 959 points.

to Trace the above sample Core i7-7700K at the following link.

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