Hi i need help with my graphics card and psu

Monsta123

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Mar 26, 2014
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Hi guys i need some help i bought a EVGA GTX 650 Ti Boost Superclocked and i had a cheap 450 watt psu with a single 12v rail with 24 amps it was running the card but there was not enough power so i bought a Zalman 500LE it has a dual 12v rail the rails amperage are 12v1 20 amps 12v2 20 amps but the problem comes in where my cards requirements are a 450 watt psu with 24 amp and the zalman has 2 rails with 20 amps each is this okay and with the power demanding cpu is there enough power?
My Build
MSI G31 Motherboard
Q8400 2.66 Quad Core
2x 2GB Ram
EVGA GTX 650 Ti Boost SC
Zalman ZM-500LE
Thanks In Advance