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Thanks for the tips Vittra, today I've looked at tips on OCN about Haswell overclocking and I made the same conclusions: more focus on Input Voltage, drop the cache ratio and see if 4.8 GHz is attainable. At the moment it's running through AIDA64 at 4.8 GHz with the cache at 32x and Input Voltage at 2.1V stably at over 8 minutes now.My main concern about stability is Prime95 as that seems to bring out potential problems. AIDA64 seems good to see if it might actually run "basically stable", Prime95 shows me if I should worry about heavy usage scenario stability.EDIT:So I may be on to something, I'm 40+ minutes in on AIDA64, the stable 4.8 GHz OC seems attainable. This CPU seems to rarely go beyond 4.7 GHz so it looks like I won the chip lottery ! Although those few more percents of clock aren't really amazing, it still hits the 50% overclock mark if it proves to be stable.What I've done is set the Input Voltage to 2.1V, the Core Voltage to 1.325V and Cache Ratio to x32. I have yet to touch LLC but it may help with Prime95 stability. After an hour of AIDA64, I'm going to try Prime95 with Load Line Calibration Level 1, which should keep the voltages in check.48x100 at 1.325V and Input Voltage at 2.100V --- 77-82°C - Passed: 640K, BSOD48x100 at 1.325V and Input Voltage at 2.150V --- 77-82°C - Passed: 640K, BSOD48x100 at 1.337V and Input Voltage at 2.150V --- After ~1 minute BSODFIVR faults disabled, Cache Voltage set to 1.3V --- 80-87°C - Passed: 640K, 8K, BSOD48x100 at 1.375V and Input Voltage at 2.150V --- 87-93°C - Passed: 1+ hour, moving on
Thanks for the tips Vittra, today I've looked at tips on OCN about Haswell overclocking and I made the same conclusions: more focus on Input Voltage, drop the cache ratio and see if 4.8 GHz is attainable. At the moment it's running through AIDA64 at 4.8 GHz with the cache at 32x and Input Voltage at 2.1V stably at over 8 minutes now.
My main concern about stability is Prime95 as that seems to bring out potential problems. AIDA64 seems good to see if it might actually run "basically stable", Prime95 shows me if I should worry about heavy usage scenario stability.
EDIT:
So I may be on to something, I'm 40+ minutes in on AIDA64, the stable 4.8 GHz OC seems attainable. This CPU seems to rarely go beyond 4.7 GHz so it looks like I won the chip lottery ! Although those few more percents of clock aren't really amazing, it still hits the 50% overclock mark if it proves to be stable.
What I've done is set the Input Voltage to 2.1V, the Core Voltage to 1.325V and Cache Ratio to x32. I have yet to touch LLC but it may help with Prime95 stability. After an hour of AIDA64, I'm going to try Prime95 with Load Line Calibration Level 1, which should keep the voltages in check.
