extreme.outervision.com/psucalculator.jsp shows me 235watt for my current system and with 299watts with the 7900gs. but im not sure how accurate this site is and i know the PSU will have some loss in power.
I plan on upgrading to the Foxconn NF4K8AB-RS MB and a 7900gs. will my current psu be enough?
is the antec much better than the Silverstone ST405? is it worth the extra 20$?
so 380watt will be enough for my system thats in my signature excelt with a 7900GS as the GPU. i will probably OC the GPU aswell.
If you're strapped for cash, then try out your current PSU. Monitor and log voltages while stressing the system graphically. If the PSU doesn't spike up/down and can remain within +-5% of the rated volts on all the rails, then use it. If not, then upgrade the PSU.
If you can spend the extra cash, then go ahead and upgrade. You might want to consider one of the Antec NeoHE. I'm running a X2 3800+, (2) Samsung Spinpoint HDDs, DVDRW, 2GB RAM, X1800XT, FDD, and Audigy 2 ZS. Both the GPU and the CPU are OCed by about 10%. Never had the first stability issue, even when adding 1-2 external HDDs.
Most likely is that it simply won't boot. Make sure that your current PSU has all of the power connections that you need for your new equipment.
If you are not comfortable running the old PSU, then you can upgrade the PSU. Sometimes peace of mind is worth a few dollars. Me - i'm a frugal bastage and don't like to spend money without a real reason.
My current PSU doesnt have the connecter for GPU's.
it also only has a 20pin MB connecter. my new MB im getting strongly recommends a 24pin. not sure how important that is but thas another reason to upgrade.
also if the NeoHE are better quality than the TP2 series then i could possibly get 1 of them
but only a 380watt.
so what is better for me - 430watt True Power 2 or 380watt NeoHE?
also is a silverstone a good brand? i think it is?
i can get the SilverStone ST405 400w PSU