is a ps necessary? look...

[Klass1k]

right now i have this...

GENERAL INFORMATION
Manufacturer Apex Computer Technology, Inc.
Manufacturer Part Number AL-B500E
Product Name ATX 12V 500W Switching Power Supply
Product Type ATX 12V
TECHNICAL INFORMATION
Fans Ball Bearing Dual Fans
# Compatibility Ideal for Intel and AMD based systems
POWER DESCRIPTION
Input Voltage 90V AC to 132V AC
180V AC to 264V AC
Output Voltage 5V DC ±1%
3.3V DC ±1%
12V DC ±1%
5V DC ±1%
-5V DC ±1%
-12V DC ±1%
Current 52A @ 5V DC - Maximum - Output Current
28A @ 3.3V DC - Maximum - Output Current
20A @ 12V DC - Maximum - Output Current
0.8A @ -5V DC - Maximum - Output Current
1A @ -12V DC - Maximum - Output Current
2.5A @ 5V DC - StandbyMaximum - Output Current
Output Power 500 W

and i need opinions if i should get this ps...
Model
Brand CORSAIR
Model CMPSU-550VX
Spec
Type ATX12V V2.2
Maximum Power 550W
Fans 1 x 120mm Double ball-bearing fan
PFC Active
Main Connector 20+4Pin
+12V Rails Single
PCI-E Connectors 1 x 6Pin
1 x 6+2Pin
NVIDIA SLI Support Yes
Modular Cabling Support No
Efficiency Up to 85%
Over Voltage Protection Yes
Input Voltage 90 - 264 V
Input Frequency Range 50/60 Hz
Input Current 9/ 5A
Output +3.3V@30A,+5V@20A,+12V@41A,[email protected],+5VSB@3A
MTBF >100,000 Hours
Approvals UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick
Features
Connectors 1 x Main connector (20+4Pin)
1 x 12V(4+4Pin)
6 x peripheral
6 x SATA
2 x Floppy
2 x PCI-E
Features Supports the latest ATX12V v2.2 and is backwards compatible with ATX12V 2.01 systems.
Ultra quiet 120mm double ball-bearing thermally controlled fan.
Double forward switching circuitry design offers high efficiency, up to 85% under wide load range.
Dedicated single +12V rail offers maximum compatibility with latest components.
High quality Japanese capacitors provide uncompromised performance and reliability.
Extra long cables support full tower size chassis.

-----------------------------

now i need to make a pc upgrade... ram,cpu,mobo,video card. all i have is
$530 (shipped). i can purchase the things i need, but if i buy a new psu, then i wont have money to buy a mobo or ram for this setup. this is why im asking, is a brand named psu necessary? im not overclocking, this is why im getting a 6400+,Ballistix ram, and msi 8800gt 512m version. would the psu i have now be able to push this stuff? im on a k9n4 sli-f mobo. also need help on getting a good amd (am2) mobo... thanks.

 

[uberwoot]

20amps on that 12 volt rail ouch. Time for a beefer psu man

 

[JamesXP]

Yes PSU is the area you shoudldn't skimp on.

 

[Klass1k]

alright. so is the 550vx any good? or should i get something better? the 550vx has 41amps on 12v rail... im lookin for a reliable psu with mesh around the wires to make it look decent in my thermaltake armor.

 

[JamesXP]

550vx is a great PSU.

 

[Klass1k]

ok, ill get that then

 

[Mortis03]

Remember that power supplies can get ratted way over what they actually can put out / handle. The more expensive PSU's tend to be underrated while the cheapos are way over. There are also a lot more things to look at then just the Wattage rating.

That being said, I have no idea about the PSU you mentioned, hehe.