the 1.5-2500k remains stuck at turbo after modification
the 1.5-2500k remains stuck at turbo after modification
I had my i5-2500k OC'd to 4.9Ghz for nearly a year without any issues. Recently, my PC wouldn’t boot and I resettled the CMOS, which helped but wasn’t related to the CPU. Replacing RAM resolved the problem, as clearing the CMOS had been done for about a month. Since then, I haven’t re-overshot, and today when attempting games, I had to lower certain settings to prevent random freezes. I tried overclocking again but the CPU remained stuck at 3.7Ghz at idle. When running benchmarks like AIDA or Prime95 with a multiplier of 45 in BIOS, the results were disappointing.
Here’s what I attempted:
- Switched power plan from 'High Performance' to 'Balanced'
- Disabled EIST and Intel Turbo Speed in BIOS
- Adjusted CPU multiplier to 44 and 46
- Changed CPU voltage to 1.28 (no recent changes)
I haven’t performed any overclocking in a year, so I’m unsure if I missed something or if the BIOS is enforcing an OC frequency. My current settings are:
- i5-2500k
- Asus Strix GTX 970 OC
- MSI P67A-GD55 B3 Mobo
- 4x4GB HyperX Fury RAM
- 120GB Samsung SSD for Windows
- 1TB Toshiba HDD for storage
- Corsair 750W PSU (model not remembered)
Pics of BIOS:
I resolved the problem by activating EIST, Intel Turbo Boost and Enchanced Turbo in the BIOS, which let me push the CPU beyond its turbo limit. It's unclear whether it was one, two, or all three that caused the change.