i7-7700k OC problems
i7-7700k OC problems
Hey everyone, I assembled my PC about three months ago and haven’t really settled on overclocking yet. Here are my details:
CPU: i7-7700k
Cooler: NZXT Kraken x62
Mobo: MSI z270 Gaming M3
GPU: EVGA SC 1070
Ram: G. Skill Trident Z RGB 16GB
PSU: Thermaltake Toughpower 750w Gold (about a year and a half old)
HDD: 1TB WD Black
SSD(s): 960 m.2 250gb and PNY XLR8 240gb
Attempting overclocking didn’t go well. I increased my CPU to 5ghz and ran it through p95 while monitoring temperatures, but the system crashed. I tried 4.8ghz and about five cores failed during a 5-minute p95 run. Temperatures began at 49°C and climbed into the 90s and 100s. I lowered it to 4.5ghz right now, and without p95, my temps were 47°C max and 55°C min. I’m not sure if these idle readings are normal, especially with a Kraken x62. I’ve checked the pump and think it’s dead, but this is my first time working with an AI-O, so I’m uncertain about vibrations or noise. I re-applied thermal paste using Arctic Silver 5. Besides that, I don’t know what might be causing the issue. I feel my AI-O is fine, but I hear some strange sounds coming from the PC. Could you help?
Different chips have varying tolerances. My setup would reach 90C+ at 4.9GHz with 1.35V, while the NH-D15S would fail at 5.0GHz. It's tough to expect it to handle 100C at 5.0GHz and 1.26V without issues. Probably you'll need higher voltage, but your temperatures were around 90-100C. I guess you'll have to test your CPUs by trial and error. Begin with 4.5GHz, set vcore to 1.2v as mentioned, run the tests, check the temps, and adjust accordingly.
You didn't reference anything about the vcore voltage. It seems your pump is functioning when powered on, and keeping the voltage in Auto mode will raise it significantly. Additionally, you shouldn't jump directly to 5.0GHz without assessing your CPU's capabilities. A careful overclock process with gradual increases in speed and voltage while monitoring temperatures and stability is necessary. The i7-7700K tends to produce high temperatures at higher speeds, and many users running it at 5.0GHz have resorted to liquid metal cooling to maintain acceptable temperatures.
volkgren :
You didn’t mention anything about the vcore voltage. I think your pump is functioning (as long as it’s plugged in) and keeping the voltage on Auto will raise it significantly. Also, you shouldn’t jump straight to 5.0GHz without checking what your CPU can handle. A proper overclock with gradual increases in speed and voltage while monitoring temperatures and stability is necessary. The i7-7700K tends to generate high temperatures at higher speeds. Many users who run 5.0GHz on this chip use liquid metal to maintain acceptable temps.
My mistake. At 5ghz the core voltages were 1.26 and 1.22, currently around 1.2 for 4.5ghz, and I keep it on Auto for 4.2ghz. Not realizing that delidding is key to why I’m not reaching 5ghz like others. Since I won’t be delidding, what advice would you have? Thanks in advance for your help.
Different chips have varying tolerances. My setup would reach 90C+ at 4.9GHz with 1.35V, while the NH-D15S would fail at 5.0GHz. It's tough to expect it to handle 100C at 5.0GHz and 1.26V without issues. Probably you'll need higher voltage, but your temperatures were around 90-100C. I guess you'll have to test your CPUs by trial and error. Begin with 4.5GHz, set vcore to 1.2v as mentioned, run the tests, check the temps, and adjust accordingly.
Volkgren:
You didn't mention the vcore voltage. I think your pump is functioning when it's plugged in, and keeping the voltage on Auto will raise it significantly. Also, you shouldn't jump straight to 5.0GHz without checking your CPU's capabilities. A proper overclock requires gradual increases in speed and voltage while monitoring temperatures and stability. The i7-7700K tends to overheat at high speeds, especially at 4.9GHz with 1.35V; most users use liquid metal coolers to maintain reasonable temps.
Volkgren:
Different chips have different limits. With my setup, I'd reach 90°C+ at 4.9GHz and 1.35V, while my NH-D15S handles 5.0GHz at the same voltage. Crashing at 5.0GHz with 1.35V is likely. Reaching 100°C at 5.0GHz and 1.26V vcore seems risky. You might need more voltage, but your reported temps of 90-100°C suggest you'll have to test and adjust. Start with 4.5GHz, set vcore to 1.2v as advised, run tests, and see how the cooler performs before increasing further.
Thank you!