I have, obviously, i5 4670k, g45 gaming motherboard, and a Noctua NH-U12 S cpu cooler, I have 6 case fans. I was wondering what would be a safe overclock for my pc and what i have to change in the bios. some software to check the stability would be good and how to know if it is stable would be very helpful.
i5 4670k safe overclock
- Thread starter Dmiliate2
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nikoli707
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cpuz, hwmonitor, intel burn test, and prime95. as long as your not passing 80c on the cpu, any core speed you desire is safe. but in terms of vcore voltage, im not the most familiar with haswell but i would be shying away from any vcore above 1.40v unless you have very very superior cooling. you probably should be aiming for not going over 1.30v if you can help it, but keeping your temps under 80c is going to be a struggle even at that voltage.
intel burn test at maximum setting is great for checking temps and voltages quick and doing your initial tuning of your overclock. use prime95 as the last main stress test for stability. haswell has bios stuff that im not too familiar with that have to do with vcore voltage like adaptive and fixed etc. there have got to be plenty of guides on the internet that pertain to haswell overclocking.
intel burn test at maximum setting is great for checking temps and voltages quick and doing your initial tuning of your overclock. use prime95 as the last main stress test for stability. haswell has bios stuff that im not too familiar with that have to do with vcore voltage like adaptive and fixed etc. there have got to be plenty of guides on the internet that pertain to haswell overclocking.
nikoli707
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intel burn test or prime95 will usually just bsod(blue screen of death) if there is a stability problem. prime95 can also stop a worker. when prime stops a worker it is just shutting down a thread/core that was working on a a problem because it detected an error in calculation. when this happens, usually you are pretty close to being stable. if prime stops a worker you will see in the list that only certain cores are active and looking for prime number iterations.
nikoli707
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12 hours of prime95 small fft test is theoretically stable. but run intel burn test at maximum first, takes about 30 mins or so. 9 times out of 10 if you can get though intel burn test, you are stable. intel burn test will get your temps up quick so use hwmonitor to watch your temps in that.
nikoli707
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you shouldn't initially be messing with any voltages. your cvid will automatically adjust your vcore up for you. the first goal is finding at what multiplier will it not let you load into windows, then back down to the next lower setting and run some stress tests. then when you find your stock stable overclock, you can later down the road start slowly manually adding voltage. at that point you will be playing with voltage offset, line load calibration, or adaptive/fixed voltage settings to get a higher overclock, but thats only if your staying under 80c and your already at a decent stable stock overclock. but the first stock overclock is very safe as voltages will be well within safe 24/7/365 range.
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