E5300 refuses to exceed 345 kHz regardless of adjustments.
E5300 refuses to exceed 345 kHz regardless of adjustments.
I want to understand how to reduce the PLD voltage below the stock level since my CPU appears to prefer lower PLD settings. I’m trying to adjust the Wolfdale CPU (e5300) PLD voltage to make it more stable and overclock it, but I can’t go below 1.5V in the BIOS. I saw some LGA 775 XO models do this and wonder if similar adjustments require a hard modification.
I managed to reach 4.48 ghz once before it became unstable. Perhaps the degradation is due to me pushing the voltage to a "safe-ish" range of 1.6-1.7v, which keeps the FSB term under 1.4v and prevents faster CPU wear than the vcore would suggest. I don’t really need to worry about destroying my CPU since I have two more in stock. However, I’d rather avoid that because it seems wasteful.
And assuming I don’t face thermal constraints that would require me to apply excessive voltage—like the extreme 1.9v+ needed for these 45nm CPUs—I’m also considering purchasing three or four E5800s and pushing them beyond 5GHz. I might even aim for overclocks exceeding 5.5GHz or reach a more stable performance in the range of 5.1 to 5.3GHz, while keeping power usage slightly lower. This is because a CPU of this type could easily handle around 200W, and I’m only planning to make a small adjustment.
I have been interested in overclocking the 775 socket. Sometimes, without sufficient RAM for the task, progress is limited. I used an OCZ SLI setup that operated at 2.4V with fans running freely, achieving a stable 1200MHz. The process involved tuning from 800MHz to 6-6-6-18 with a 1:1 ratio. For the CPU E5800, I successfully reached speeds between 3.2GHz and 4.6GHz without issues, though exact overclock records are scarce. The only documented case was with a budget motherboard that managed to succeed.
For more advanced overclocking, consider using an LN or thermal cooling pad (one side cold, one side hot).
If I aimed for speeds above 5ghz, I'd likely need a Peltier module. Overclocking the motherboard might require adjusting the voltage to 1.4V or similar settings.