What methods exist for boosting performance beyond the standard K i5 3470 on a Z77 motherboard?
What methods exist for boosting performance beyond the standard K i5 3470 on a Z77 motherboard?
Hi!
I was experimenting with boosting my CPU speed, starting from 3.2Ghz to around 3.78Ghz while keeping temperatures under 56°C at full load. Many users have achieved 4GHz+ speeds, but when I tried x40 multiplier and 105bclk, I would save the session and restart, then it would drop back to about 3.8Ghz and 100%. Anyone have any insight?
(I have an i5 3470+Asus P8Z77-V with DDR3 1333MHz)
You are restricted to a +4 boost only on non-K CPUs. That results in 40x for one core at 3470. The multipliers for 2,3,4 cores will be lower than that. The 4-core loaded value is 34x at stock (34+4=38x). It seems the 2 and 3 cores might reach around 35x. Your card should support setting "all core" (limiting to 38x) and "per core" multipliers (allowing up to 40x). I adjusted my 3770 settings to per-core, but it's uncommon for just one core to load at once—usually only the minimal background process triggers that. And even then, the workload likely doesn't require the extra 200MHz.
I’ve tested x38 and 105.00 bclk, x40 100bclk… but once I restart it it always returns to x38 and 100bclk.
You are restricted to a +4 boost only on non-K CPUs. That results in 40x for one core on a 3470. The multipliers for 2,3,4 cores loaded will be lower than that. The 4-core loaded value is 34x at stock (34+4=38x). It seems the 2 and 3 cores may reach around 35x. Your card should support setting "all core" (limiting to 38x) and "per core" multipliers (allowing up to 40x). I adjusted my 3770 settings to per-core, but it's uncommon for just one core to load at once—usually only the minimal background process triggers that. If so, the extra 200MHz likely isn't necessary.
It might be better to opt for a 2700k, 2600k or 3770k. You should update the BIOS before swapping the CPU. The older processors usually work just fine too; these models all support an unlocked multiplier, so you can maintain the BLCK at 100. "K" indicates an unlocked setting.