Overclocking the Pentium G3258
Overclocking the Pentium G3258
I've successfully achieved a stable 4GHZ clock with a core voltage of 1.255. For 4.2Ghz, there are no standard recommendations provided in the available data.
It differs from chip to chip, therefore... no. Also observe that occasionally during overclocking, chips can develop "holes" in them. They might function properly from 3.2GHz to 4.0GHz, then become unstable between 4.0GHz and 4.2GHz, but stabilize again from 4.2GHz to 4.5GHz. This doesn't indicate what your chip is actually doing, and it doesn't imply that a 40x multiplier will work the same as a 42x one—just because it runs at 40x doesn't mean it will switch to 44x without issue.
It differs from chip to chip, therefore... no. Also observe that occasionally during overclocking, chips can develop "holes" in them. They might function properly from 3.2GHz to 4.0GHz, then become unstable between 4.0GHz and 4.2GHz, but stabilize again from 4.2GHz to 4.5GHz. This doesn't indicate what your chip is actually doing, and it doesn't imply that a 40x multiplier will work the same as a 42x one—just because it runs at 40x doesn't mean it will switch to 44x without issue.
Your voltage is at a level where reaching higher speeds puts you in a risky situation. Haswells have reported problems above 1.3 volts, which is often referred to as a death spiral. The system becomes unstable; increasing voltage only worsens the issue, making instability worse until the chip fails. My 3258 in a backup system functions well for light tasks—you won’t even notice .2ghz. Stick to safer voltage unless you’re ready to upgrade, then go all in and see the results.