I am going to build a new system for the first time. I am trying to pick the correct power supply for this build. I am going to use a Radeon X1900XT 512MB 256-bit GDDR3 video card. The system requirements state that I need:
# 450-Watt power supply or greater, 30 Amps on 12 volt rail recommended (assumes fully loaded system)
# For CrossFire™: 550 watt power supply or greater, 38 Amps on 12 volt rail
What does this mean 30 Amps on 12 volt rail?
Here is a list of the parts for my computer build(from Newegg):
Antec SmartPower 2.0 SP-500 ATX12V 500W Power Supply - Retail
Lian Li PC-V1200Aplus II Silver Aluminum ATX Mid Tower Computer Case - Retail
ASUS P5W DH DELUXE/WIFI-AP Socket T (LGA 775) Intel 975X ATX Intel Motherboard - Retail
ATI 100-435801 Radeon X1900XT 512MB GDDR3 PCI Express x16 Video Card - Retail
Intel Pentium D 950 Presler 800MHz FSB LGA 775 Dual Core Processor Model BX80553950 - Retail
CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Unbuffered Dual Channel Kit System Memory Model TWIN2X2048-6400 - Retail
Western Digital Caviar SE16 WD2500KS 250GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
ViewSonic VX922 Black/Silver 19" 2ms LCD Monitor - Retail
ASUS Silver ATAPI/E-IDE DVD-ROM Drive Model DVD-E616A2 SV - Retail
NEC 16X DVD±R DVD Burner Silver IDE/ATAPI Model ND-3550A - OEM
Microsoft Windows XP Professional With SP2 - OEM
Lian Li C-01A CD/DVD ROM Bezel - Retail
This power supply states that it has +3.3V@32A, +5V@35A, +12V1@17A, +12V2@19A, -12V@0.3A, +5VSB@2A.
Does this mean that it has a total of 36amps on the +12V rail?
And what does it mean by Efficiency 70%(min.) at full and typical loads. Does this mean that you only get 70% of the 36Amps which would be about 25Amps?
Do you think this power supply will work for this build?
I like the idea of modular cabel design..
Thanks
# 450-Watt power supply or greater, 30 Amps on 12 volt rail recommended (assumes fully loaded system)
# For CrossFire™: 550 watt power supply or greater, 38 Amps on 12 volt rail
What does this mean 30 Amps on 12 volt rail?
Here is a list of the parts for my computer build(from Newegg):
Antec SmartPower 2.0 SP-500 ATX12V 500W Power Supply - Retail
Lian Li PC-V1200Aplus II Silver Aluminum ATX Mid Tower Computer Case - Retail
ASUS P5W DH DELUXE/WIFI-AP Socket T (LGA 775) Intel 975X ATX Intel Motherboard - Retail
ATI 100-435801 Radeon X1900XT 512MB GDDR3 PCI Express x16 Video Card - Retail
Intel Pentium D 950 Presler 800MHz FSB LGA 775 Dual Core Processor Model BX80553950 - Retail
CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Unbuffered Dual Channel Kit System Memory Model TWIN2X2048-6400 - Retail
Western Digital Caviar SE16 WD2500KS 250GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
ViewSonic VX922 Black/Silver 19" 2ms LCD Monitor - Retail
ASUS Silver ATAPI/E-IDE DVD-ROM Drive Model DVD-E616A2 SV - Retail
NEC 16X DVD±R DVD Burner Silver IDE/ATAPI Model ND-3550A - OEM
Microsoft Windows XP Professional With SP2 - OEM
Lian Li C-01A CD/DVD ROM Bezel - Retail
This power supply states that it has +3.3V@32A, +5V@35A, +12V1@17A, +12V2@19A, -12V@0.3A, +5VSB@2A.
Does this mean that it has a total of 36amps on the +12V rail?
And what does it mean by Efficiency 70%(min.) at full and typical loads. Does this mean that you only get 70% of the 36Amps which would be about 25Amps?
Do you think this power supply will work for this build?
I like the idea of modular cabel design..
Thanks