Windows 7 - Corsair 800D Question

Andreas W · 09-20-2011

Hi all

My question regards the top place that is suppose to contain fans, it got 3 places for fans but what size of fans? and I have used upp all the fan power slots on my motherboard and would like to connect the fans to my PSU instead but not quite sure what the cable is called I have looked around and I think its something like this in the link but I want others suggestion so I dont buy the wrong cable. Newegg.com - APEVIA Power 4 PIN Adapter TO 3 PIN Fan Adapter Model CVT43 (used newegg to get rid of language problems I live in Sweden)

JaidynM · 09-20-2011

I believe they're 120mm slots. Take a look at the full specs below.
Obsidian Series® 800D Full-Tower Case - Obsidian Series - Cases

Andreas W · 09-20-2011

Hmm, its either 140 or 120 fans, but could I measure it somehow?

JaidynM · 09-20-2011

No, I'm quite sure it's only 120mm. And what do you mean by measuring? Do you already have the Corsair 800D case or are you considering buying it?

linnemeyerhere · 09-20-2011

Quote from Corsair 800D features:
"Three 140mm fans included, with the ability to add four more 120mm fans"

Those are 120mm x 3 on top and I would consider premium quiet fans like Noctua's
Yes that is the correct cable for the fans and I would connect them to the PSU before using the mobo connections, it's cleaner looking and keeps un-needed power from flowing through mobo. Another reason to use Noctua's as they are provided with speed resistors but I've found even wide open they are dead silent.

Andreas W · 09-20-2011

Ya thanks for answering, and notcuas are the ones I want even thou the color is wrong, and planing to put all cables behind the mobo connected my psu but should I do it even with the cpu? I use a noctua heatsink, and would 1 psu cable be enough considering that connector I linked can be built on or should I do like 3x fans then do a new cable to add the other 3 fans I got already inside?

linnemeyerhere · 09-20-2011

I'm sure you could daisy chain up to 4 fans off one psu connection. I have kept mine to 2-3 fans per psu connection and run them wide open except for the two stock Corsair fans acting as puller fans on the other side of my H100 radiator. This is done to slow them down and quiet them down as they are crazy loud. Regarding the air cooler connection unless you have a 4 pin to two three pin jumper you'll need to run them off the psu as well and why not as the cooler you can run then better and there will be zero noise!. Then you can also investigate the Corsair link as well..........?
Corsair Link Cooling Kit - Corsair Link Kits - Corsair Link

JaidynM · 09-20-2011

Ah, right. Noctua's are a good choice once you get over the colour. For some reason, they insist on making all of their fans hideous shades of brown. Anyway, 1 PSU connector should be fine for the three fans if you use that connector of yours.

linnemeyerhere · 09-21-2011

Yes the Noc's are an acquired taste? I even called them and asked if they would reconsider as I felt that if they offered a basic black model they would sell even better. Oh......it was like I had just told him he was adopted ! The tone of the whole conversation turned and even though I'm sure they must get 10's of calls a week if not a day it was as if he'd heard this for the first time. It must be that beige and brown resonate less than black???lol

Andreas W · 09-21-2011

Alright thanks for all the info and now I can get a bit less cables sticking around since the ones to the noctua fans are rather long so atm they go a bit every in the chassi. So this is the last question before I get into action on fixing this. If I connect every fan to the PSU I wont get any reads from the sensors right indicating how warm the CPU is or that dont matter?