Originally posted by: Souka
Might wanna consider a Silverstone Olympia series.... 650w and 750w versions. nice feature is a single +12v rail.....and very quiet. SLI/crossfire cert will be added to Nvidia/ATI lists next month..(no change in PSU, just takes time to update list)
54A +12v rail on the 650w unit for $127 + 10s/h EastLuna.com (NO REBATES!)
60A +12v rail on the 750w unit. for $149 + 10s/h EastLuna.com (NO REBATES!)
The corsair's 3x 18A rails would not be enough for a ATI x1950Pro AGP as it requires 40A total from two 12V hookups...) There's also concern about such low Amp PSU's for future of power hungry vid cards as the 12V amperage is split into too many pieces.... This particular Silverstone model makes that conern non-existent...
Here's a review of the 650W unit at Hardware Logic...
---> LINK
OP750 info from EastLuna
The Olympia series continues the fine form established by the first SilverStone performance single +12V rail Zeus ST56ZF and expands to a new plateau. Precision manufactured by industry leading robotics assembly line and designed by SilverStone's world-class PSU engineering team, the Olympia OP750 possess serious performance with real-world usability. With a single +12V rail continuous output up to 60A at 50°C , this peerless power is harnessed in a compact enclosure and cooled by a high quality 120mm fan tuned to perfection. Combining these performance and ergonomic attributes into a power supply such as the OP750 is a dream come true not only for ardent enthusiasts but also for those who are simply looking for the best.
Class-leading continuous 60A single +12V combined output at 5 0 ?
Single PCI-E 8pin connectors
Quad PCI-E 6pin connectors
Six Serial ATA connectors
Precision manufactured by robotics
Support for ATX 12V 2.2 & EPS12V
Active PFC
Max. DC Output 750W
Load Range
................+3.3V +5V +12V +5VSB -12V -5V
Max.(Amps) 28A... 30A 60A ...4.0A.... 0.5A /
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
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 24/20-pin motherboard connector ( 550mm )
1 x 8/4-pin ATX12V connector ( 550mm )
1 x 6-pin AUX connector ( 550mm )
2 x 6-pin PCI-E connector ( 550mm )
2 x triple SATA power connectors ( 500mm + 250mm + 250mm )
4 x triple 4-pin IDE & single floppy power connectors
( 500mm + 250mm + 150mm + 150mm )
Color black (lead-free paint)
Cooling System Single 120mm ball bearing fan
Noise Level 22 dBA minimum
Weight 2.6 kg
Dimension 150 mm (W) x 86 mm (H) x 150 mm (D)