How to Build a 4-GPU Mining Rig for 2025 – Step-by-Step Guide

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How to Build a 4-GPU Mining Rig for 2025

Introduction: The Future of GPU Mining in 2025

Cryptocurrency mining remains a lucrative opportunity, and as we move into 2025, the demand for efficient GPU mining rigs continues to grow. In this guide, we’ll explore how to build a 4-card GPU mining rig using NVIDIA 3060 Ti graphics cards, ensuring maximum profitability while maintaining cost efficiency.

This article will provide a step-by-step guide to assembling the rig, explain the essential components, and analyze the profitability of mining in the current crypto landscape. Whether you're a beginner or an experienced miner, this guide will help you set up a mining rig that is optimized for 2025’s crypto market.

1. Understanding GPU Mining in 2025

With the ever-evolving cryptocurrency market, GPU mining remains a viable method for earning passive income. However, it’s crucial to stay ahead of industry changes, including:

✔ Ethereum 2.0 and proof-of-stake (PoS) transitions affecting GPU profitability.
✔ The rise of alternative cryptocurrencies like Kaspa (KAS), Ergo (ERG), and Ravencoin (RVN).
✔ Bitcoin halving events and their impact on the crypto market.
✔ This guide focuses on building a GPU rig that remains profitable in 2025, considering electricity costs, mining difficulty, and coin selection.

2. Components Needed to Build a 4-Card GPU Mining Rig

Key Hardware Components:

To assemble a high-performance mining rig, you'll need the following essential components:

✅ GPUs: 4x NVIDIA 3060 Ti (one of the best efficiency GPUs for mining)
✅ Motherboard: TB250-BTC Pro (supports multiple GPUs)
✅ CPU: Intel Celeron G3900 (low power consumption, adequate for mining)
✅ RAM: 8GB DDR4 (sufficient for mining needs)
✅ Storage: 120GB SSD (for OS and mining software)
✅ Power Supply: 1200W Gold-rated PSU + additional server PSU for stability
✅ Risers: PCIe risers for stable GPU connections
✅ Frame: Open-air mining frame with proper airflow

Additional Accessories:

✔ Cooling fans: Prevent overheating and improve rig longevity.
✔ Power splitters and adapters: Ensure power efficiency.
✔ Monitor & peripherals: Required for initial setup and monitoring.

3. Step-by-Step Guide to Assembling the Mining Rig

Step 1: Assembling the Frame

✔ Securely mount the frame and ensure proper spacing for GPUs.
✔ Install foam padding to prevent short circuits.

Step 2: Installing the Motherboard, CPU & RAM

✔ Mount the TB250 motherboard on the frame.
✔ Insert the CPU and apply thermal paste before attaching the heatsink.
✔ Install 8GB DDR4 RAM in the appropriate slot.

Step 3: Connecting the GPUs

✔ Attach the PCIe risers to the GPUs and connect them to the motherboard.
✔ Space out GPUs to allow proper ventilation.

Step 4: Powering the Rig

✔ Connect the 1200W PSU to the motherboard, CPU, and SSD.
✔ Use an additional server PSU to power GPUs for efficiency.
✔ Ensure proper power distribution to avoid voltage spikes.

Step 5: BIOS Configuration & Software Installation

✔ Boot into BIOS and adjust settings for mining efficiency.
✔ Install HiveOS or Windows with mining software like T-Rex Miner, LolMiner, or NBminer.
✔ Configure overclocking settings for power efficiency and performance.

4. Mining Rig Optimization for Maximum Profits

✔ GPU Overclocking & Undervolting Settings
✔ Core Clock: -200
✔ Memory Clock: +1300
✔ Power Limit: 130W
✔ Fan Speed: 70% (adjust based on temperature)
✔ Optimizing these settings helps reduce power consumption while maximizing hash rate.

Choosing the Best Cryptocurrency to Mine in 2025

Since Ethereum moved to PoS, alternative GPU-mined coins include:

✔ Kaspa (KAS) – Energy efficient & ASIC-resistant.
✔ Ravencoin (RVN) – Strong community support.
✔ Flux (FLUX) – Profitable for GPU miners.

Monitoring & Maintenance

✔ Use HiveOS for remote monitoring and controlling the rig.
✔ Regularly clean the rig to prevent dust buildup and overheating.
✔ Keep track of profitability calculators like WhatToMine.

5. Conclusion: Is GPU Mining Still Worth It in 2025?

✅ GPU mining is still profitable, but miners must choose the right coins and optimize electricity costs.
✅ Building a 4-card 3060 Ti mining rig remains a great investment for those looking to enter the crypto-mining space.
✅ Proper overclocking, monitoring, and cooling are essential for long-term profitability.

🔹 If you're serious about mining, stay updated with crypto trends and hardware advancements.

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