240v 0r 12v which do you prefer?

[Kryten]

I now have a pretty good idea on how much air and where it should go.
My next question is do I use 240v or 12v, I am leaning towards 240v simply because if I use multiple fans I would create quite a draw on the PSU and I have a better range in 240v in Oz.

 

[Thelemac]

Personally, I go for the 12v cause even if I get 12 fans, if I have a 431 Watt PSU, I got plenty left over. If you have' a small PSU, you might want the 240v...but then you won't have a PC as portable...

 

[Kryten]

Thelemac (Apr 10, 2001 08:42 p.m.):
Personally, I go for the 12v cause even if I get 12 fans, if I have a 431 Watt PSU, I got plenty left over. If you have' a small PSU, you might want the 240v...but then you won't have a PC as portable...

I have a 300watt PSU, I know this is going to sound like a stupid question (mainly because it is) but I figured I would be able to directly wire all these fans together and maybe run a extra power cable to the box.
I have the destinct feeling you are telling me I will need an aditional power supply to power these fans.
Is this so?

 

[Thelemac]

No no, not at all. In fact, depending on how many fans you have (assuming its the six or so that you listed in another post) you should be fine with the 300W PSU, as fans really don't pull that much power. You might start worrying if you have lots of drives (probably seven or eight or more). I had five drives, my Duron 600 @ 1050 @ 1.85Vcore, and three fans running off of my generic 250W PSU. Though I don't have a power hungry video card (TNT), so that probably helped. If you have a new video card, you might lower the drive number to 4 or 5 or so.

I think I may have been a tad confused when I posted earlier...

 

[ken257]

Take a look on my site at the Athalon 800 and you will see some pics of an outlet i installed in the power supply so I could have AC inside the case without any extra wires. Add a relay that is switched by DC to control it and you are all set.