Should i stop using this power supply??

ok i know that i asked toooo much about my pc but forgive me i am sorry
i searched for new Power suplly but the best is only 400 watt (+12---15a)
so. should i use my one tell get an other or stop tell buy new one . is there any danger on my pc from using this week psu
thanks
my pc spec:
pro:p4 3.2 1mb cash fsb 800
board: Msi 865 PE NEO2 P SERIES
VGA : HERCULES RADEON 8500
SOUND : CREATIVE LIVE
POWER SUPLY : 300W
+3.3V 12A
+12V 12A
-12V 0.5A
+5V 22A
-5V 0.5A

Let me repeat this one last time.
You current PSU is too weak with only 300watts to spare and only 12A on +12v for a Prescott system. That's not the end. I've told you that a minimum of 18A ~ 20A is needed for any Prescott system and still you choose this 400watts with only 15A. This 15A on +12v PSU will not help out much nor long enough even if it can struggle for a few months, period at times.
Get something like Antec 430watts TruePower or Enermax 465watts or above PSU that has met the requirements of a Power Hunger Prescott.
Right now you situation is like trying to ask a person who's already starving from hunger to take 1 piece of bread per day and later told him that he can have a cup of water to go with the bread which isn't enough to kill the hunger as he needs more than what is provided.

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