Asrock PG-850G 850W ATX PSU 80 Plus Gold

Asrock Phantom Gaming PG-850G | 850W ATX 3.1 PSU

The Asrock Phantom Gaming PG-850G 850W ATX Power Supply Unit, 80 Plus Gold Certified, 135mm Fluid Dynamic Bearing Fan, High Efficiency PSU is built for modern gaming builds. It targets enthusiasts who need stable power for high-end graphics cards and CPUs. This unit is fully compliant with ATX 3.1 and PCIe 5.1 standards.

Slim Specs Table

ATX 3.1 & PCIe 5.1 Future-Proof Compliance

This power supply is fully compliant with ATX 3.1 and PCIe 5.1 standards. It handles up to 220% power excursion. This means it can manage sudden power spikes from modern graphics cards. Your components receive reliable and safe power during demanding tasks.

Ultra-Quiet Operation with iCOOL Mode

The unit features an iCOOL Intelligent Fan Control Mode. When enabled, the fan stays off during low to medium loads. This reduces noise and improves energy efficiency. The fan only activates when load or temperature increases. For consistent cooling under heavy loads, you can switch this mode off.

High-Quality Components for Longevity

ASRock uses industrial-leading components for reliability. The PSU includes Infineon CoolMOS and 105°C Japanese-made capacitors. These parts ensure a prolonged lifespan and stable performance. The 135mm Fluid Dynamic Bearing fan also provides an extremely long lifespan and noise minimisation.

Native PCIe 12V-2×6 Cable with Dual Colour

The PSU includes a native PCIe 12V-2×6 cable. It features a Dual Colour Design with ASRock Classic Green connectors. This allows you to easily verify if the connector is plugged in properly. Cable Over-Temperature Protection is also included via an NTC sensor.

Comprehensive Safety Protections

Safety is a priority with a full suite of protections. These include OCP, SCP, OVP, UVP, OTP, and OPP. The unit also has a +5V BOOST Mode switch. This compensates for voltage drop and maintains optimal performance. It regulates the +5V rail to approximately +5.15V if no drop occurs.

Box contents

• ASRock Phantom Gaming PG850G Power Supply Unit
• Native PCIe 12V-2×6 Cable (Dual Colour)
• AC Power Cord
• Modular Cables (Sleeved and Braided)
• Mounting Screws
• User Manual

Check before you buy

• Confirm your case supports ATX PSUs with 150mm x 150mm x 86mm dimensions.
• Verify your motherboard has the required 24-pin and EPS 12V (4+4pin) headers.
• Check your graphics card needs a native 12V-2×6 connector or uses 6+2pin PCIe cables.
• Confirm the AC input range (100-240V) matches your UK mains supply.

Frequently Asked Questions

Q: Is the Asrock Phantom Gaming PG-850G compatible with UK power sockets?

A: The unit supports 100-240V AC input. You will need to verify the included power cord has a UK plug or use a suitable adapter.

Q: Does this PSU come with a 12V-2×6 cable for next-gen GPUs?

A: Yes, it includes one native 12+4pin PCIe 5.1 connector with a Dual Colour design for easy installation checks.

Q: What does the iCOOL mode do for noise levels?

A: iCOOL Mode keeps the fan off at low loads for silent operation. The fan only spins up when heat or load increases.

Q: Are all internal capacitors Japanese-made?

A: Yes, the PSU uses 105°C Japanese-made capacitors and solid capacitors for reliability and a long lifespan.

Q: How long is the warranty period?

A: ASRock provides a 10-year warranty for this power supply unit.

The Consultant’s Verdict & Warranty

This Asrock Phantom Gaming PG-850G is ideal for UK builders planning a future-proof ATX 3.1 system. It suits users with high-end graphics cards who need stable power and quiet operation. The 10-year warranty offers long-term peace of mind. Covered by the standard Manufacturer Warranty.