First: the list to avoid. Не покупать ни за какие деньги!
List shamelessly ripped off from Hardocp, but with some revisions.
Achieve
Aerocool
Allied
Aspire I wouldn't touch this power supply with a 50 foot pole. It doesn't meat ATX spec, the rating scales are nonexistant on this supply (no temperature measures, accurate amps, wattage jump). Lots of people seem to want one cause they're bling bling. Don't. Doesn't meet basic safety spec.
Codegen
Coolmax: OK power supplies, but far from the best.
Demon: Made by Powmax. Possibly one of, if not the absolute worst manufaacturer of PSU's. See below.
Deer: Makes L&C power supplies. See below.
Devanni.
Dynapower
Eagle
InWin
JustPC
Kingwin: The ones included with cases are crap the ones that are sold seperatly are ok.
L&C: Made by Deer. Your typical craptastic generic psu that doesn't put out enough amps, and dirty power.
Linkworld
MGE: Same OEM as the Ultra X-connect (Taiwan Young Year). Doesn't meet required
Power-Man
Powmax: The absolute worst Power supply manufacturer in the world. Ever see a PowMax 450w get beaten by an Antec 250w? How about the 12v that is rated for 20a, but it blows before it even hits 17? Avoid at all costs.
Power-Up
Raidmax
Thermaltakes: Not so bad as some of the above, but still pretty damn bad. The PurePower 680w rating is mostly from the 3.3+ and 5+ rails, not the 12v, where it counts. If possible, get something else. If not, then settle for a higher end.
Ultra X-connect: Early production models (2004) made by Wintech. Starting from 2005 onwards, the OEM switched to Taiwan Young Year, and the new ones just plain SUCK. Avoid. The X-finity's are fine though.
X-superalien: Made by Powmax. See above.
X-treme
DO NOT buy any of the above.
Here is a list of the good, and some descriptions.
Antec: Sometimes silent, sometimes not. Pretty reliable, but quality seems to be going downhill. Still an extremely good deal.
Akasa: Same OEM as Silverstone
Enermax: Good, silent power supplies. Quality seems to be slipping a bit, but still right up there.
Fortron (FSP): Damn good deals, and some of the best psu's I've ever seen.
OCZ: Powerstream is the second best PSU you can buy, right behind the PCP&C 510.
Sunbeam: Good, cheap, modular. SLi certified.
PCP&C: The best psu's ever. Military Spec. Silencers made by FSP.
Zippy: A bit on the expensive side, but right up there with PCP&C
Zalman
Tagen
Coolermaster: No Active PFC, but still a decent supply
Vantec
Sparkle: OEM'd by FSP
Silverstone: The 650w Zeus is a very good supply, if not a bit loud.
Seasonic: Very, very good power supplies, and very quiet at that.
SilenX: OEM'd by FSP
Xclio: Same OEM as Antec
Vantec
HiPro
И напоследок рейтинг Блоков питания начиная с самых плохих и заканчивая самыми лучшими (внизу)
Deer
Allied
Powmax
Dynapower (they even have bogus UL numbers on them!)
Raidmax (the ones that come bundled with a Raidmax case. Not necessarily one you'd buy separately.)
Rhycom
Achieve/Viomax
Turbo Links that are made by "Real Power" (like the ones that are included inside Aspire cases.)
Rosewill (various manufacturers, but usually fair quality.)
Coolmax and some other ATNG manufacturered units.
Low end Wintech's (like Ultra V-Series and some Turbo Links)
FSP Saga series (AX part number)
Youngyear (includes some older Ultra X-Connects, MGE's and Aspires.)
A.C. Ryan
Enlight (used to be Enhance, but now seem to all be ATNG's)
TTGI/Superflower
FSP/SPI (those with FSP part numbers.)
Topower P5 based units (like OCZ Modstream, Tagan, most ePowers.)
Most Thermaltakes
Most Wintech (most Ultra models, Sintek, Future Power, some MGE's)
Topower P6 based units (like the OCZ Powerstream.)
AcBel Polycom (Coolermaster, for example.)
Antec
XClio
Sunbeam NUUO series
PC Power and Cooling Silencer series
Ablecom/Supermicro
Delta
AMS Mercury
Seasonic
Enermax
Enhance (includes some Silverstone units)
PC Power and Cooling Turbo-Cool series
Zippy/Emacs
Etasis (includes some Silverstone units)
для тех кто хочет знать больше - original link