To prevent failures you should get a good surge protector, and if you want to keep it running during the brownouts, a battery back up.
Here is a good list of what are good power supplies, i would stay within the top 3 tiers, preferably the top 2, i would get at least a 550wat or higher
This is an update of the tiered power supply list originally posted on xtremesystems a few years ago. We are continually adding to this list and correcting it when new information is found or comes available. If you think that something about this list is incorrect, or something is missing that should be there, feel free to post that information in this thread. When posting suggestions for changes, it would be very helpful if you could link information supporting what you say, or at least cite the site where you think the information can be found. Of course, personal experience with a power supply can be helpful as well, to some extent, so don't hesitate to post if you have something to add.
Original Phase III tiered PSU list from: xtremesystems(Can't show link as it would be against GTG terms of agreement)
As with any guide there may be psu's that aren't listed, or you may have your own opinions on various units.
WHICH ONES TO BUY ?
Tier 1 provides the best quality power, great for overclocking and super high-end systems.
Tier 2 offers almost as good 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 power supplies are NOT RECOMMENDED, but some brands have high/medium quality power supplies 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
Ultra X3 >1000W
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
Antec TruePower Quattro
Akasa PowerGreen 80+
Cooler Master Real Power Pro >800W
Cooler Master Ultimate/UCP
Fortron (FSP) GLN
Hiper Type-M >650W
Hiper Type-R >650W
OCZ GameXStream <1000W (only if manufactured in December 2007 or later)
OCZ StealthXStream (only if manufactured in December 2007 or later)
PCP&C Silencer <610
Seasonic Energy Plus
SevenTeam ST <600
Silverstone OP/DA <700W
Thermaltake Toughpower >600W
Zalman ZM <1000watt
Tier T - High Quality PSUs Made With Topower Internals - Less Rail Stability Compared To Tier 2 But Still Better than Tier 3
ABS-Tagan ITZ/BZ <1000W
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)
Athena Power Space Shuttle Series
Be Quiet Dark Power Pro
Cooler Master Real Power Pro <800W
Cooler Master iGreen
Enermax Maximum Plus
Enermax Noistaker II
Enermax Whisper II
Fortron (FSP) GLC
Fortron (FSP) THN
Rosewill RP 2 (temperature sensitive)
Seasonic Super Versatile
Spire Rocketeer V/VI
Thermaltake Purepower RX
Thermaltake Toughpower <600W
Zalman ZM 1000watt
Tier 4 - Not Recommend With Tier 3 In same Price/Wattage Range
Cooler Master eXtreme (subtract 100watts from labeled wattage)
OCZ GameXStream <1000W (if manufactured before December 2007)
OCZ StealthXStream (if manufactured before December 2007)
Ultra X2 <750W
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
OCZ GameXStream 1010watt
Thermaltake Purepower NP
Edited by charge06, 14 September 2008 - 10:16 PM.