Hello I ask how much hd7750 will take power. Is my 325w PSU enough? Now i have Pentium 4 HT640, 2 gb DDR2. I would like update my processor to Pentium D 945 and buy hd7750 or hd7770 but i guess i buy hd7750. So the question... Is my Psu enought for that Pentium D processor and hd7750? And sorry my english, because I'm Finnish.