Overclocking the i5 4690k to 4.2ghz resulted in a temporary jump to 5ghz during tasks.
Overclocking the i5 4690k to 4.2ghz resulted in a temporary jump to 5ghz during tasks.
I increased my i5 4690k to 4.2ghz at 1.21v and switched it to dynamic mode once stability was confirmed by Linus. The motherboard debug/ temp sensor shows the cpu at 28 degrees atm, but the task manager displays fluctuations between 1ghz and 5ghz, which is confusing. When I tried it at 4.6ghz with 1.25v initially, it reset to BIOS. At 4.3 @ 1.25v, it reached the highest stable speed after two hours of AIDA64 Extreme System Stability Test and playing Star Wars Battlefront 40 Player Online at 65 degrees. I lowered it back to 4.2 @ 1.21v for better longevity, maintaining a steady 60 degrees during two hours of AIDA64. Orion
ORION85 :
Which stress tests should you use to verify stability and duration? You also want to disable the turbo boost. Switching turbo off is fine, but setting turbo clocks to match your CPU multiplier is better. AIDA64 works well for initial checks, but it won’t last 2 hours. If you need a solid assessment of stability quickly, run IBT (Intel burn in test) with 50 passes—standard mode takes around 10 minutes, though it will push your CPU to its limits. Keep an eye on temperatures.
For other stress tests, consider OCCT for 8 hours or 9 hours overnight.
http://imgur.com/MZ45MnZ
http://imgur.com/jc4tNX0
Realbench stress test, 8 hours...
ORION85 :
Which stress tests should be used to verify stability and duration? You also recommend shutting down the turbo boost. Switching turbo off makes sense, or adjusting turbo clocks to match your CPU multiplier. AIDA64 works well for initial checks but isn’t suitable for long-term testing—IBT (Intel burn in test) is better for about 50 passes, it takes around 10 minutes and puts a lot of strain on the CPU, so keep an eye on temperatures.
For other options, OCCT or 8 hours overnight, Realbench stress test, and AIDA64 for 8 or 9 hours are suggested. If the test isn’t still active by morning or the PC is off, it means the test failed.
That's a valuable perspective, thanks Seanie280672. I initially considered turning off the turbo boost but realized I should have thought about it earlier. I'm currently downloading the benchmarks and will revisit this topic once everything is complete. Orion
I've downloaded everything and configured intel burn test v2.54 for 10 minutes, which is currently running on standard. However, I couldn't locate the option to set it for 50 passes. You mentioned 50 minutes, so at the top where it says settings, it lists 64bit and times to run—just change that to 50.
Yeah no worries, I saw that too. It cleared the 50 passes with a maximum of 75 degrees at points.
I plan to run the 9-hour benchmarks over the coming days and nights, starting tonight when I return to work, and continuing as needed.
ORION85 :
No problem at all, I saw that too. It handled the 50 passes well without exceeding 75 degrees at points.
I plan to run the 9-hour benchmarks over the coming days and nights starting from tonight when I return to work, then when I get in.
That’s good news—it’s great for a quick test—and the temperatures are nice too. You can push a bit further now before doing longer tests; just run IBT in between and keep an eye on things. Anything you do won’t bring your temps up that high again, except maybe video rendering.