Official XS Tiered PSU Manufacturer Brand Listing Phase III
All credit goes to: http://www.xtremesystems.org/forums/showthread.php?t=108088
As with any guide there may be psu's that aren't listed, or you may have your own opinions on various units. However you can visit SilentPCReview, PCPer, and jonnyGURU for in-depth psu reviews.
WHICH ONES TO BUY ??
Tier 1 can handle 4Ghz Conroe or 3Ghz AMD along with Oced Quad Crossfire/SLI With Ease.
Tier Z offers quality and power unequalled in its wattage range and is second only to other Zippy units.
Tier 2 offers almost as much power and stability as Tier 1 at Comparable Wattage levels with lower price/better availability.
Tier T offers the high quality components of Tier 2 with slightly less Rail stability due to Topower internals.
Tier 3 is ONLY Recommended if Price difference is present between Tier 3 and Tier 2 or due to availability issues with Tier 1/2 PSUs.
Tier 4 is recommended for stock or low power systems if Tier 3's are more expensive or are not available.
Tier 5 are NOT RECOMMENDED, but some brands have high/medium quality components in Tiers 2 through 4.
Tier 1 Brands - The Most Powerful And Stable Components On The Market
PCP&C Silencer >610
Silverstone ZF (Etasis 85/75/56)
Seventeam ST >600 (SSI, V2.91)
Silverstone OP/DA >700W
Tier Z - Less Powerful Than Tier 1 Zippy Units...but they're still Zippys
Tier 2 Brands - Top Quality components With Top Notch Stability - For Those With Price/Availability Issues With Tier 1
Antec Neo HE
Antec TruePower Trio
Akasa PowerGreen 80+
Fortron (FSP) GLN
Hiper Type-M >650W
Hiper Type-R >650W
PCP&C Silencer <610
Seasonic Energy Plus
SevenTeam ST <600
Silverstone OP/DA <700W
Thermaltake Toughpower >600W
Tier T - High Quality PSUs Made With Topower Internals - Less Rail Stability Compared To Tier 2 But Still Better than Tier 3
Tier 3 Brands - High Quality and Stability, Second Only To Tier 2 Brands
Akasa PowerPlus (>500W Models)
Antec TruePower III
Antec TruePower II
Antec TrueControl II
Antec NeoPower 480W (Old Model)
Antec SmartPower 2.0
Athena Power Space Shuttle Series
Be Quiet Dark Power Pro
Enermax Maximum Plus
Enermax Noistaker II
Enermax Whisper II
Fortron (FSP) GLC
Fortron (FSP) THN
Seasonic Super Versatile
Spire Rocketeer V/VI
Thermaltake Toughpower <600W
Tier 4 - Not Recommend With Tier 3 In same Price/Wattage Range
Coolermaster Real Power
Tier 5 - Other than the units listed above for any of these brands, NOT RECOMMENDED
Broadway Com Corp
I-Star Computer Co. Ltd
Norwood Micro/ CompUSA
Phase III compensates for overcrowded Tier 1, while clumping together previously Tier 2 and 3 PSUs if only because no definite way to categorize then as good enough for Tier 2 or bad enough for Tier 3.
- eXtreme Power Supply Calculator Lite v2.5 - Endorsed by Antec
The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage.
If you have questions about psu loads please visit my other thread. http://www.eggxpert.com/forums/thread/101115.aspx
* This thread is not endorsed by Newegg or its affiliates.