need help modding in 120mm fans

Meh, I would just replace the 80mm fans with better 80mm fans. 120mm fans will have benefits such as higher CFM at a lower dB, but I don't see why you need to go out of your way and mod your case to add them when good 80mm fans should also get the job done.

If you care about CFM without heed to noise, then Vantec Torndao will be more than enough. There are also some decent 80mm fans that provide decent cooling while remaining relatively silent. And there are good all-around ones.

If you still insist on drilling holes... I'm not entirely certain on the current fan setup of your case, but I would have 2 front intake, one side intake, one top exhaust, and one rear exhaust at least. Your case should be able to accomodate all that (maybe just one front intake).

Man one time I built a computer, the guy ordered 2 Vantec tornado. I found a way to mount one in the front through the holes of the front grill, when I started the computer I was like OMG. They do sound like a tornado, or a 1U server for that matter. They do move a hell lot of air.

Oh and I just bough some Scythe S-Flex fan.
2X SFF21D, 800rpm, 8.7dBA, 33.5CFM
1 X SFF21E, 1200rpm, 20.1dBA, 49CFM

Having 5 X 120mm in the case I figured quieter lower CM would do

WTF.. 8.9 and 20.1 dB... I can understand you want quietness, but thats a the limit of human hearing 8O

Meh, I consider 30 dB quiet enough for most things. Either way, nothing is stopping me from getting my 220CFM Delta TBF fan. MWAHAHAHAHAHA
Only at 54dB, which isin't that loud... meh... I work around heavy machinery all day, a little sound never hurt you. Sucks for my roomate though =P

the drive cages are removeable there is just a platform it sits on too and i have nothing else in there so it can be taken off i also work around load areas so not realy bothering me a my computer is in a seperate room and could care less about the noise i do have some extra sound deadener laying around i have a fan controler but i think it is broken cause when i turn the knobs off the fans stay at the same speed and i have not taken it apart from when i installed it the first time.

i think i may have found some fourm that i get a responce from thinking i will be here a lot when i am ready to build in a couple months

we speak english all the time in nebrsaka. i just get lots of stuff in my head and don't stop for proper writing.

My video card is realy suffering because of the side panel being off and 2 dogs that like being under my desk doesn't help either with hair and such. I will probly do that as it is time for another paint job for the case go a cool new test color from my paint supplyer. will try all that stuff cause when i put my hand out a little bit from the intakes i can't feel the air(these fans are done)

Lol, my cousins are from "nebrsaka" and they speak "english" fairly well. I do know some intellectual types from a state called Nebraska and they all speak English very well.

On topic:

I have two of the 80mm Scythe S-Flex fans and they are amazingly quiet. I honestly can't even tell when they are on.

I also have 2 of the 1200 rpm 120mm (20.1 DBA) on my radiator and they are nearly dead silent. When not on the radiator they are silent, but adding in the very very slight "whooshing" sound of the air passing over the radiator fins makes them audible within a foot or two. Sitting here in my chair my PC is as audible as a DVD player.

I have had more computer related injuries with the Vantec Tornado, then all others combined. Damn that fan will clip the tip of your finger right off... Does blood ruin a motherboard.

I have had a tornado actually slice into my fingernail.. OUCH (well, thats not the word I used). went about 1/4 inch into the nail (from end of the finger).

Ewwwww... I try not to touch my computer when it's running.. for various reasons...

And who says plastic can't hurt you =P

I ended up pointing the fan inward, which works just as good.