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Power Supplies over 850W

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Power supplies (PSU) are often neglected when building a computer system. The power supply distributes the power to all the individual components within the PC, without it your PC would not run. The quality of components and technologies used to manufacture PSUs varies greatly. A poor quality power supply can greatly reduce the lifespan of your components, cause instability and even fail when overloaded. A high quality PSU will provide a more stable, more reliable system that will also produce less noise and heat. The higher quality power supplies will also operate more efficiently reducing your electricity bill and helping the environment. Remember not all power supplies are made equal.

Beginners Guide to Power Supplies

What is a Power Supply and why do I need one?

Power supplies (PSU) are often neglected when building a computer system.  The power supply distributes the power to all the individual components within the PC, without it your PC would not run.

Why is there a price difference between models with the same output?

The quality of components and technologies used to manufacture PSUs varies greatly. A poor quality power supply can greatly reduce the lifespan of your components, cause instability and even fail when overloaded. A high quality PSU will provide a more stable, more reliable system that will also produce less noise and heat. The higher quality power supplies will also operate more efficiently reducing your electricity bill and helping the environment. Remember not all power supplies are made equal.

What do the wattage ratings mean?

The wattage rating on a power supply can be deceptive as it shows the combined wattage across all the rails (basically all the connectors on the PSU are added up for the total power output). With the increased demands by components, the total required output for the +12V line has become increasingly important. A power supply should ideally have at least 18A available on the +12V line. The actual load you will need to get the most out of your components will vary depending on your system specifications.

What do power supply efficiency ratings and certifications mean?

If a supply loses less than 20% of the total power consumed, then it is considered ‘efficient’.  Look for the ‘80Plus’ sticker on modern PSUs. The benefits of more efficient power supplies are lower electricity bills, less harm to the environment and also due to less energy being wasted as heat a cooler and quieter operating PC. There are four 80Plus levels:-

- 80 PLUS Bronze: 81%+ efficient
- 80 PLUS Silver: 85%+ efficient
- 80 PLUS Gold: 88%+ efficient
- 80 PLUS Platinum: 90%+ efficient

What most people do not realise is the added benefit to a higher efficiency power supply is lower heat output. With less heat the fan on the PSU can keep temperature down  allowing for a cooler and quieter system overall.

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Kolink Continuum 1200W Modular 80+ Platinum PSU
  • 8x Molex Connectors
  • 8x SATA Connectors
  • 12x PCIe Connectors (6+2-Pin)
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CCL Code: PSU1323
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Part Number: KL-C1200PL
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Manufacturer: Kolink
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Corsair TX850M 850W Modular 80+ Gold PSU
  • 8x Molex Connectors
  • 8x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
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CCL Code: PSU1420
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Part Number: CP-9020130-UK
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Manufacturer: Corsair
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Riotoro Enigma G2 850W Modular 80+ Gold PSU
  • 5x Molex Connectors
  • 10x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • Modular Cable System
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CCL Code: PSU1498
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Part Number: PR-GP0850-FMG2-UK
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Manufacturer: Riotoro
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Corsair AX860i 860W Modular 80+ Platinum PSU

Corsair AX860i 860W Modular 80+ Platinum PSU

Award Winning Digital Power Supply
  • 8x Molex Connectors
  • 12x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • Modular Cable System
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CCL Code: PSU0530
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Part Number: CP-9020037-UK
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Manufacturer: Corsair
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Game Max GM1050 1050W Modular 80+ Silver PSU
  • 3x Molex Connectors
  • 8x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
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CCL Code: PSU1406
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Part Number: GM-1050
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Manufacturer: Game Max
Ace   850W PSU
  • 3x Molex Connectors
  • 4x SATA Connectors
  • 1x PCIe Connectors (6-Pin)
  • 4-Pin CPU Power Connector
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CCL Code: PSU0833
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Part Number: A-850BR
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Manufacturer: Ace
Kolink Core Series 850W 80+ PSU
  • 3x Molex Connectors
  • 5x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor
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CCL Code: PSU1439
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Part Number: CORE 850W
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Manufacturer: Kolink
Corsair RM850X 850W Modular 80+ Gold PSU
  • 8x Molex Connectors
  • 10x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
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£124.41 inc VAT

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CCL Code: PSU0952
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Part Number: CP-9020093-UK
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Manufacturer: Corsair
Be Quiet! Straight Power 11 850W Modular PSU
  • 4x Molex Connectors
  • 11x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • Modular Cable System
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£131.99 inc VAT

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CCL Code: PSU1538
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Part Number: BN284
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Manufacturer: Be Quiet!
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Aero Cool Project 7 P850 850W Modular PSU
  • 6x Molex Connectors
  • 10x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
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CCL Code: PSU1465
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Part Number: ACPP-P785FKC.11
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Manufacturer: Aero Cool
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Cooler Master V850 850W Modular 80+ Gold PSU
  • 4x Molex Connectors
  • 9x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
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CCL Code: PSU0719
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Part Number: RS850-AFBAG1-UK
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Manufacturer: Cooler Master
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Be Quiet! Dark Power Pro 11 1200W Modular PSU
  • 7x Molex Connectors
  • 10x SATA Connectors
  • Modular Cable System
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CCL Code: PSU0920
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Part Number: BN255
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Manufacturer: Be Quiet!
Superflower Leadex Gold 1600W Modular 80+ Gold PSU
  • 5x Molex Connectors
  • 10x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • Modular Cable System
  • ATX Form Factor
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CCL Code: PSU0860
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Part Number: SF-1600F14HG(BK)
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Manufacturer: Superflower