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Up Topic The Rybka Lounge / Chess / Overclocking.
- - By yorkman (**) Date 2014-02-07 18:26
I'm using H3 and H4 engines. Is it better, or I should say, is the engine more efficient at finding the best moves, by overclocking using the CPU Multiplier option in the BIOS or the BLCK method?

I think BLCK is best for increasing the speed of RAM so since chess engines perform better with faster CPU's I would think that overclocking with the multiplier method is best. I should mention that this would be used with syzygy tb's and the hash file saved after infinite analysis is stopped.

I'm referring to the 3930K cpu on Sabertooth X79 motherboard and P9X79 Pro motherboard, with 16 GB G.Skill ram. Does anyone know for sure which method is more efficient? I know that one may show higher KN/s but it doesn't mean it's more efficient.
Parent - By bformless (**) Date 2014-02-18 15:23 Edited 2014-02-18 15:38
Modern CPUs have throttling built in when the CPUs getting too hot and reaching their TDPs.
Use water cooling and look for the best and stable overclocking setting ---> use PRIME-tests for example to be on the sure side that your CPU is showing correct results.
The hotter a CPU gets the worse the results could be. The more you overclock the less is the lifetime of a CPU. But i have an overclocked CPU running for 4 years now, sometimes 24/7, and all is fine. So maybe it's a myth? Who knows...
BCLK overclocking may overclock your PCIe too. So be aware of this fact as well. A safe range is 100 - 105 Mhz. I use 103 and have a multiplier of 42 for my old i7-2600k.
Turn off C1E, Speedstep, etc. for higher overclocking results and to be able to disable the Turbo Mode.
I use an older Sabertooth P67, maybe yours has some nice new BIOS features.

If your CPU gets unstable raise the Voltage a little bit, but only a little bit or you damage it... I don't use higher voltages and my CPU runs smooth @ 4,2 Ghz with watercooling.

cul8'er.
Up Topic The Rybka Lounge / Chess / Overclocking.

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