How does overclocking work in GregTech?

For standard recipes, every time you upgrade a machine to the next voltage tier (e.g., LV to MV), the machine overclocks the recipe. A standard overclock multiplies the required EU/t by 4, but halves the processing time. This means the total energy cost of the recipe doubles for every overclock.

Why did my machine explode in GregTech?

Machines explode if you supply them with a Voltage higher than their tier allows. You cannot plug an HV (512V) cable directly into an LV (32V) machine without using a Transformer. Amperage does not cause explosions, only Voltage does.

Why did my cables burn up?

Cables burn up if you push too much Amperage through them. A 1x Tin Cable can only handle 1 Amp of LV power. If you connect two machines that simultaneously draw power, the cable will attempt to draw 2 Amps from the generator and instantly burn. You must use thicker cables (2x, 4x, 8x) for multiple machines.

Minecraft GregTech Calculator | Overclock & EU/t Optimizer

Recipe & Machine Config

Base Recipe EU/t 16

Recipe Minimum Voltage: LV

Base Recipe Time (Seconds) 10.0

Target Machine Tier

Machines will automatically overclock recipes if given enough tier overhead.

Overclock Analytics

Total Overclocks

New Time Required

Overclocked Draw
0EU/t
Total Cost: 0 EU

Machine Voltage Capacity

Max Tier Capacity

Current Draw

Mastering the GregTech Overclock System

GregTech (in versions like GTCEu or New Horizons) utilizes a brutal but rewarding industrial scaling system. While upgrading a machine to the next tier allows it to process entirely new recipes, its most powerful feature is Automatic Overclocking.

The 4x / 2x Overclock Rule

If you put an LV recipe (e.g., drawing 16 EU/t and taking 10 seconds) into an MV machine (capable of 128 EU/t), the machine realizes it has excess voltage to spare. It will automatically perform an overclock.

Standard OC Formula:
For every tier upgraded:
- EU/t consumption multiplies by 4x.
- Processing time divides by 2x (0.5x).
- Result: The total raw Energy (EU) cost of the recipe doubles for every overclock applied.

Because the power requirement quadruples while the speed only doubles, overclocking is an energy-inefficient process. A recipe that costs 3,200 EU total in an LV machine will cost 6,400 EU in an MV machine. You trade energy efficiency for raw processing speed.

Voltage vs. Amperage Limits

When wiring up your overclocked machines, remember the golden rules of GregTech wiring:

Voltage dictates the Machine: A 512V cable connected to a 128V machine will instantly explode the machine. Voltage must step down through transformers.
Amperage dictates the Cable: A standard 1x Copper Cable can carry 1 Amp of power. If two machines on that cable pull power simultaneously, they request 2 Amps. The cable will melt and burn.

Can I disable overclocking to save energy?

Generally, no. GregTech machines automatically consume as much power as they can handle to finish recipes faster. If you need energy efficiency, you must use lower-tier machines or specialized multiblock structures.

Why did the calculator say 0 Overclocks?

If your base recipe requires more EU/t than the machine can provide (e.g., a 120 EU/t recipe inside a 32 EU/t LV machine), the recipe cannot be processed at all. The machine must meet the minimum voltage tier of the recipe before overclocks are even considered.

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