Upgrading CPU, But What About PSU?

[igr11]

Hello

I'm currently running Venice 3000+ (O/Ced to 3800+ equivalent) with Mushkin 1GB RAM, GeForce 7800GT, 2 HDDs, 2 optical drives, SoundBlaster X-fi and several USB devices. My power supply is Zalman ZM400A-APF, which was a champ about 1-2 years ago. Everything runs perfectly.

I'm planning to upgrade to Athlon X2 3800+ (O/Ced to 4200+ or so) and some fast 2GB Ram. Also, I'm hoping to upgrade to a video card to Radeon X1900/GeForce 7900 caliber, when either becomes affordable. I have no interest in SLI. Will my Zalman 400W survive the upgrades? Some of the internet calculators I've tried to estimate the power draw are too vague.

Thanks for the advice in advance.
Igor

 

[Rottie]

yeah I am sure Zalman 400W will be fine.

 

[Shenkoa]

Originally posted by: Rottie
yeah I am sure Zalman 400W will be fine.

 

[kyparrish]

Should be fine, I'm running an X2 3800+ @ 2.42ghz, and a 6800GS @ 520/1200 on an Antec Truepower 2.0 430w. Your Zalman should be fine, but what are the 12A rail(s) rated at?

I'm also looking to upgrade to an x1900xt or a 7900 one day as well, and I'm wondering if this PSU will be enough for the X2 and the new video card.