I need some advice concerning my power supply. I think i have an underpowered system. I have little knowledge on buliding systems but i know that i can't get the most out of my current computer, mainly because it's unstable in Windows XP environment (now that can't be right - not with this system). Any suggestions on fixing my problem, i'm guessing it's the crappy power supply and if i'm right then what would you recommend.


My system:

CPU: Intel Core 2 Quad Q6600
Board: Intel DQJ3O mATX
Memory: 4 x DDR2 1GB 6400 - 800Mhz
HDD: 2 x 400GB Samsung SATA2 16M (I have these two in RAID 0)
Graphics: PNY Quadro FX1700 512MB (450W minimum power supply noted in requirements)
Fans: A single case fan and cpu stock fan
Current power Supply Enlight 400W

Power upgrade is a good idea. what is your budget.

budget is not an issue, i just want it to work decently without any problems. All i want to know is how powerful of a supply should i buy.

Hmmm..go at 550W-650W for your configuration.
Go for Corsair, Tagan, Antec, Silverstone, or Enermax.