For christmas I'm building myself a computer (I got other stuff for people other than myself too...) and I always planned on using the 420watt Raidmax power supply that came with my case a bough awhile back. The computer project has changed alot since I originally planned and it will use the following: Asus A8N-SLI Deluxe AMD 64 3700+ San Diego Core eVGA Geforce 6800GS PCIE (one card no SLI) 2x512mb TwinX Corsair XMS 200gig SATA Maxtor HDD and an undecided DVD-Drive (likely to be a Pioneer DVD-RW drive) So I need to know that without overclocking will this simple computer setup be consistently run on a 420watt because it is something I would like to wait on upgrading if possible. I know the PSU works as I used it on an old P3 motherboard and seemed to boot okay.
this links for a power supply calculator. run your system pecs through it to find out what your required power supply is http://www.vbutils.com/power.asp
you better rethink your christmas present cause that 420 watter sucks.get yourself between 500 and 600 watts thats sli ready...pc and cooling i think there called have the best power supply out there right now thats sli tested. http://www.pcpowercooling.com/products/power_supplies/max-performance/ this is the best performer out today if you can efford it buy it so you dont have to buy different ones for a while...the hyper r i have maxes peak power at 630 watts and run a continuous power supply at 580 watts.that raidmax is history,long gone unless you have a athlon xp or something like that.....3800+ amd64,no good for the specs you listed....hope this helps....peace