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PSUs Buying Guide
The Power Supply Unit (PSU) is often overlooked but is the most vital component for protecting your expensive PC build from Pakistan's frequent power fluctuations and surges. Always look for an 80 PLUS Efficiency Rating (Bronze, Gold, or Platinum)—this ensures less power is wasted as heat, which is important for system longevity. For most modern builds, 80 PLUS Gold is the recommended sweet spot.
Wattage choice depends on your GPU: a 550W-650W unit is enough for an RTX 4060, while an RTX 4080/4090 will require 850W-1000W+. Consider Modular vs. Non-Modular: Fully modular PSUs allow you to only plug in the cables you actually need, resulting in much better airflow and easier cable management inside your case. Crucially, look for units with Japanese Capacitors as they are rated for higher temperatures and better reliability.
With the arrival of next-gen GPUs, ensure your PSU is ATX 3.0 or 3.1 compliant, featuring the new 12VHPWR connector to avoid using potentially unreliable adapters. Top-tier brands in Pakistan include Corsair, Seasonic, EVGA, and Cooler Master (higher-end units).
The Power Supply Unit (PSU) is often overlooked but is the most vital component for protecting your expensive PC build from Pakistan's frequent power fluctuations and surges. Always look for an 80 PLUS Efficiency Rating (Bronze, Gold, or Platinum)—this ensures less power is wasted as heat, which is important for system longevity. For most modern builds, 80 PLUS Gold is the recommended sweet spot.
Wattage choice depends on your GPU: a 550W-650W unit is enough for an RTX 4060, while an RTX 4080/4090 will require 850W-1000W+. Consider Modular vs. Non-Modular: Fully modular PSUs allow you to only plug in the cables you actually need, resulting in much better airflow and easier cable management inside your case. Crucially, look for units with Japanese Capacitors as they are rated for higher temperatures and better reliability.
With the arrival of next-gen GPUs, ensure your PSU is ATX 3.0 or 3.1 compliant, featuring the new 12VHPWR connector to avoid using potentially unreliable adapters. Top-tier brands in Pakistan include Corsair, Seasonic, EVGA, and Cooler Master (higher-end units).
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PSUs FAQ
It is an efficiency certification. An 80 PLUS Gold PSU is guaranteed to be at least 87-90% efficient at various loads, meaning it uses less electricity from the wall and runs cooler than a standard White or Bronze rated unit.
Modular PSUs give you a cleaner build. You can remove any cables you don't use (like extra SATA power), which improves airflow and makes it much easier to close your case's side panel.
If you are buying a high-end NVIDIA 40-series or 50-series graphics card, an ATX 3.0/3.1 PSU is highly recommended because it includes the native 12VHPWR cable, which is safer and cleaner than using adapters.
Absolutely. A low-quality "cheap" PSU lacks proper protection circuits (OVP, UVP, SCP) and can fail catastrophically during a power surge, potentially destroying your motherboard, CPU, and GPU in the process.