Need a straight answer on required wattage

[miketool21]

Hi there, I can't get a straight answer about whether or not my power supply is sufficient. I got a 420W power supply 13.0A of +12V power with:

ARCTIC COOLING Freezer 7 Pro 92mm CPU Cooler
Creative Sound Blaster SB0570 Audigy SE 7.1
Intel Core 2 Duo E8400 Wolfdale 3.0GHz 65W
Seagate Barracuda 250GB 7200 RPM SATA 3.0Gb/s Hard Drive
ASRock P45TURBOTWINS2000 LGA 775 Intel P45 ATX Intel Mobo
==>GIGABYTE GV-N95TD3-512H GeForce 9500 GT 512MB 128-bit GDDR3 PCI Express 2.0 x16 <== this is the reason I can't figure it out, no PSW calculators are new enough to support this video card (link http://www.gigabyte-usa.com/Support/VGA/Manual_Model.aspx?ProductID=2911)
LITE-ON Black 20X DVD+R 8X...Burner with LightScribe
OCZ Platinum 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066

Any help is appreciated.

 

[miketool21]

closest I got to an answer was I cross-referenced with a geforce 8800 gts (for which gigabyte recommends 450W) and used newegg's calculator and came up with 406W required
Plus I am curious if I am undersupplying the wattage how serious is it going to be if I am off like 10w? I blew all my money on this pc and have no extra moolah to buy a PSU right now

 

[invisik]

yes 420w is enough ur pc isnt going to use more then 300w so u should be fine.

 

[sailer]

Since you don't have any extra money, you're kind of stuck for the moment. Try the present PSU and see if it works. However, you might be wise to start putting away some money for a more powerful PSU, something around 500w. Your present PSU only has 13A and that's a bit light. You also don't mention the brand and model of your present PSU, so its hard to guess if what you have is good enough or not.

 

[miketool21]

I didn't know that the brand and model for psu mattered.
It's RAIDMAX KY-520ATX 420watts PS2 ATX12V

 

[miketool21]

Ok it just arrived in the mail and it turns out that I actually have 20A of +12V power. For some reason, the picture on newegg was inaccurate! How do I fare now? Plz respond thx