Options to connect my fans? Noob-alert!

1) I dont know why you are replacing the fans in the A70, the fans that come with it are pretty awesome as is. They have a faster rated RPM and move as much if not more air, at slightly higher noise level.
That aside the SFF21E comes with Molex adaptors so you can use the "8 peripheral" adapters on the PSU to plug them in when you run out of fan controllers on the motherboard, although this will mean they will run at full speed all the time.

2) The Zalman connector will fit fine on the motherboard, they are keyed so that it still connects. however, i think you will loos speed control, dont know why Zalman did it that way
Actually according to the egg its a 4 pin so you wont have a worry
http://www.newegg.com/Product/Prod [...] man%2b9700

Thanks Chookman, but I should have listed the Zalman NewEgg model...

http://www.newegg.com/Product/Prod [...] 6835118019

This one has a 3 pin when I look under specs...while the one you posted does indeed show a 4 pin but that model looks to be more specific for NVidia-based boards unless my newbieness is wrong.

As for replacing the fans, many people complain the fan quality on cases are not the best (and I don't blame the mfg. since they need to keep costs down). I don't mind 1200rpm 120mm fans running full speed since the scyth I saw in person was almost unhearable when it was running.

I think the motherboard has at most 3 fan connectors (I think) so I guess I will have to use the peripheral adapters to power them as you mention or get that Zalman fan controller. I read they lose some power and RPMs though through that (not sure if true) so that worried me.

Either way, the connectors on those fans seem short so i guess Ill check NewEgg or Fry's to see if they have 3pin extenders...

Thanks for the info

*sigh* now I know why most people pay companies to build their machines. At every turn where I think I learned something, I learn just how much I still have to learn!

But, I went with the 1200RPM for a few reasons, and these might be false assumptions. You tell me.

1) The case has 6 fans. JPL in Pasadena already has a wind tunnel so I didn't want to have two in the same county Joking aside, I was originally looking at the Silverstone TJ09 case. The 120mm fans that has are 1200 RPM and it only comes with 2 but has room for up to 5. So in this case there are _six_ fans and I though/hoped that 1200RPM and 49CFM is ok.

2 intake fans = 100CFM + 2 more per the image linked above blow on the GPU and mobo. Of course I don't know that those help bring in more air through the vent vs. just move what the first two bring in. I'm guessing it's a mix and maybe averages around 150CFU intake? Is that not enough?

Then 2 fans blowing out + PSU fan maybe is about the same 150CFU. That not enough? If so, I'll add more.

2) As for the Zalman control thingy, since a million people seem to use that thing, I figured there must be a simple solution and I guess it seems I still just plug it into the 4 pin connector on the MOBO but don't use the 4th pin and it just works somehow?

*starts looking up the number to Dell again* J/K!

I think...

If it's quieter, than it doesn't move as much air. There is no fan that
would get equivalent CFM but be "much quieter." You can't have the cake
and eat it too. RPM/CFM scaling should come to around the same, as
they're all 120mm fans.

It's best to get the best possible fan coupled with controller. That
way, you have quietness when you want it, but power if you need it.

I want to make sweet love to you...r reply. Thanks! I tried checking everywhere including calling 'partners' who carried their products and said they didnt know.

I did earlier tonight find another post that said what you said above (~56 cfm) for another case with 120mm fan so hoped it was the same.

Since this is the case, and if I go with the controller, then I'll probably want to look at:
http://www.newegg.com/product/prod [...] 6835185006

These are around ~65cfm at 1600 RPM so a tad more and faster but quieter. I did read the fans it comes with are not the quietest but again, for 6 fans included, you cant ask for much.

So only think I dont get is how you did the volts/amp math above.

The 1600rpm fans are 0.20A, Rated Voltage: DC12V. Im guessing that is still ok for the controller from some of what others posted.

Thanks!

I thought about that but in reading reviews, the others you linked definitely move air but also don't have the same bearings as the flex' (hence being cheaper) and are louder not only because of higher RPM but the bearings.

With 6 fans, just marginally more noice x6 can add up.

I guess that is why the other scyth fans are more expensive (i.e. ones that use Fluid Dynamic Bearings). Also from what I can read on other sites, they stay quieter especially over time.