Pessoalmente, ia para uma coisa destas:
http://www.silverstonetek.com/products/ ... 0&area=usa
Model No. SST-DA650
Max. DC Output 650W
Load Range +3.3V +5V +12V +5VSB -12V -5V
Max.(Amps) 24A 30A 54A 4.0A 0.5A /
Peak (Amps) / / / / / /
Min.(Amps) 0A 1A 3A 0.1A 0A /
Range (%) +/-3% +/-3% +/-3% +/-5% +/-10% /
Line Reg.(%) ±1% ±1% ±1% ±1% ±1% /
Ripple(mVp-p) 50mV 50mV 120mV 50mV 120mV /
combined +3.3, +5V 180W Max
combined +12V 648W / 54A
Input Voltage 90V ~ 264V (Auto Range)
Input Frequency Range 47Hz ~ 63Hz
PFC Active PFC (PF>0.99 at full load)
Efficiency >80%
MTBF 100,000 hours at 25°C , full load
Operating temperature 0 ~ 50°C
Protection
Over current protection, Over power protection, Over voltage protection, Short circuit protection
Connectors
1 x 24-pin motherboard connector (550mm)
1 x 8/4-pin EPS12V/ATX12V connector (550mm)
1 x 8-pin PCI-E connector (550mm)
2 x 6-pin PCI-E connector (550mm)
2 x triple SATA connector (500mm+250mm+250mm)
2 x triple 4-pin IDE & single floppy power connectors
(500mm + 250mm + 250mm + 150mm)
Color black (lead-free paint)
Cooling System Single 120mm ball bearing fan
Noise Level 22 dBA minimum
Dimension 150 mm (W) x 86 mm (H) x 180 mm (D)
Weight 2.6 kg
Certification CrossFire
Review
http://www.hardwarecanucks.com/forum/ha ... #post11369
Ou uma destas:
Be Quiet! Dark Power PRO 650W
http://www.be-quiet.net/be-quiet.net/in ... StoryID=57
ATX12V Version 2.2#
1x 24 Pin Motherboard Connector with Adaptor to 20 Pin#
1x RPM control (3pin)#
1 x cable for peripherals 600+150+150+150+150mm( 2xSATA / 2xHDD / 1xFDD )#
1 x cable for peripherals 600+150+150+150mm ( 4 x HDD )#
1 x cable for SATA connector 600mm+100+100+100(4 x SATA) include 3.3V#
2 x cable for PCIe connector 600mm with 8pin to 6+2pin #
1 x cable for P8 connector ( 8 pins ) 600mm#
1 x cable for P4 connector ( 4pin ) 600mm#
1 x cable for Motherboard ( Molex 4pin ) 600mm#
1 x cable for mainbord ( Dualboard ) EPS 6pin 600mm#
4 x cable for case fans ( controlled by PSU ) 700mm ( 1 x Molex / 1 x 3pin)#
1 x cable for peripherals 500mm ( 1x HDD )#
2 x cable for SATA 500mm ( 1 x SATA ) #
Active PFC#
4 seperated 12V rails#
Specification: +3,3V: 26A, +5V: 30A, +12V1: 20A, +12V2: 20A, +12V3: 20A, +12V4: 20A, -12V: 0,8A, +5VSB: 4A (peak 5A)#
Acredito que outras PSUs mais baratas façam bem o serviço. Mas eu fiquei fã da qualidade destas marcas.
"Os brinquedos das crianças e dos adultos diferem em duas coisas: tamanho e preço".