Worried about PSU for new rig

[tekzilla41]

My evga 7800GT CO is on its way from newegg and will be here tommorow. Once that is installed Im ready to fire this b*tch up.

3700+ San Diego (Arctic cooling freezer 64 pro)
evga 7800GT CO
Epox 9NPA+ sli
WD Caviar 250 SATAII
CDRW/DVD Combo drive
1 90MM fan, 3 80MM fan, and nexus 3.5 fan controller

My question is, the power supply that I have right now is what came with the case (Dynex 500CC from best buy) which is an Allied 500W PSU model AL-B500E.

Specs are: +5v - 52a, +12v - 20a, +3.3v - 28a

Should I be afraid to turn it on hooked up to this PSU. I want to use this thing tommorow and my only option in terms of another PSU would be from best buy. I dont plan to overclock this thing till I get a better power supply, but in the meantime will this be enough for some gaming?

 

[hurtstotalktoyou]

Should be fine, power-wise. I'm not entirely sure about the brand, though. When you get an opportunity, you might want to swap it out for an FSP or Antec.

 

[stevty2889]

Wouldn't hurt to try it, but the 12v rail is pretty weak for a 500w PSU, looks like most of the power is on the 5v rail, which isn't going to be used all that much. Personaly I would replace it with a 400w or better Fortron as soon as possible.

 

[d3lt4]

It will work fine, but make sure to get a good one before you overclock it.

 

[tekzilla41]

The 12v does seem weak that was what worried me.

On a side note, I was just looking at Best Buys website and noticed that they only have the Antec smartpower 2.0 350w and some dynex brand listed. Last time I was in the store they had the Neo HE 500/550?W. Kinda why I was thinking I could pick one up at best buy if needed, but it doesent look like it.

 

[jdkick]

I'd try looking for a power supply somewhere other then Best Buy.

 

[tekzilla41]

Yeah, see as I said that would be the only place that I could get one tommorow.