Pavilion a6142n Graphic And power Supply Upgrade

[Lionofgod]

Hey,
So I found a cheap graphics card, no not gamer notch or anything,
I just got tired of the onboard graphics.
So i bought the GeForce 8400 GS, 1024mb DDR3 Memory Graphics Card.
Now I dont know much about hardware, and frankly this is the first time im upgrading a PC, i was thinking about building my own PC sometime next year, but the onbaord graphics on this one are a disaster...
Anyways the graphics card has some power requirements,
namely,  a 350 watt power supply with a minimum 18 amps on the +12V rail.
I know my power supply is only 250 watts, but I have no clue about what 18 amps on the +12V rail means.
Can someone explain this to me, and maybe even find me a nice cheap PSU that meets these requirements...PLEASE
BTW I found one here, but i dont know if it delivers 18 amps on the +12V rail. -.-
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817339020
Im looking for something cheap... like $15-40 tops.
Thanks.

[Stackprotector]

lowl,  depends on your mobo, what motherboard do u got??

[Lionofgod]

Okay, I asked around on some other forums,
and i think I have the soloution,
My motherboard information is here

• http://www.amazon.com/ECS-MCP61PM-HM-Nettle3-GL8E-6150SE-Motherboard/dp/B0045X6N1S
• I just need to know if this PSU will work with my motherboard,
• http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-RSSDailyDeals-_-na-_-na&AID=10521304&PID=4177172&SID=psspqmlrursz
• As well as whether the geForce 8400 GS (1024mb DDR3) will work with my motherboard.
• Thanks

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