A question for the computer nerds

[Matt300ZXT]

I put the guts of my CyberPower PC in this rack server case I got today to install it in my rack. It's used, so it's obviously missing a piece or two. The case has a spot for 2 smaller exhaust fans just above/next to the motherboard i/o panel. It has 4 threaded holes each that use the same general use pc screws that the psu uses, pci slot covers, etc. If you can tell me how to measure to know what size fans I need to get, that'd be awesome.

Also, how can I measure the really big front fan that I guess is supposed to blow air over the 3.5" hard drives? If it isn't too much to get higher performance fans up front and back, I may as well just beef it up. Bring in more cool air, then 2 good fans out back to help put out hot air.

 

[NowYou'rePlayingWithPower]

You'll have to measure if you don't have a part number. There's a lot of different sizes, so here's a quick link.
https://voltcave.com/measure-pc-fan/

You'll want to make sure the fans you get are for high airflow and not static pressure if they're being used for the case and not directly mounted to heatsinks. PWM fans require 4 pin fan headers on your mobo. Check how many headers you have and how many are 4 pin and how many are 3 pin. The benefit to those is that you can run them at 5v or 12v depending on if you want maximum cooling vs quiet operation. Few oems make fans for most brands. That said, don't worry about the brand so much when looking for quality. Instead look for variants of fluid dynamic and SSO bearings along with the highest CFM for the lowest relative RPM.

Edit: forgot to add that you'll want a positive pressure setup, so make sure that the total combined CFM of the intake fans is higher than the exhast

 

[Matt300ZXT]

This is an old ass case, it has the factory installed Windows 7 Pro license sticker on it lol *hint hint* if anyone needs a Windows 7 Pro license key, I'll sell it for $1000...I know what I've got.

Anywho, the front fan measures 120mm from edge to edge (not using screw hole difference) and I haven't seen how it mounts yet since it's behind a cover I haven't flopped down to clean dust out of yet. There are 3 cha-fan headers on my board, so I'll be able to power 2 more on the rear. Do they make brackets or whatever that mount using the general use pc case thread screw, and then the fans mount to that? The case fans on the CyberPower case use those big fat screws with big threads on them, and the rear fan on this old case I robbed a few parts off of use rubber things that push through the hole and hold it to the case. I guess I need to find some 15 year old computers and try and rob some parts off of those

 

[NowYou'rePlayingWithPower]

This is an old ass case, it has the factory installed Windows 7 Pro license sticker on it lol *hint hint* if anyone needs a Windows 7 Pro license key, I'll sell it for $1000...I know what I've got.

Anywho, the front fan measures 120mm from edge to edge (not using screw hole difference) and I haven't seen how it mounts yet since it's behind a cover I haven't flopped down to clean dust out of yet. There are 3 cha-fan headers on my board, so I'll be able to power 2 more on the rear. Do they make brackets or whatever that mount using the general use pc case thread screw, and then the fans mount to that? The case fans on the CyberPower case use those big fat screws with big threads on them, and the rear fan on this old case I robbed a few parts off of use rubber things that push through the hole and hold it to the case. I guess I need to find some 15 year old computers and try and rob some parts off of those

The rubber mounts are usually just there for vibration/noise instead of using a screw. Likely mass production build speed, as well. Would guess that if you pulled them out you'll find holes the same size as the self threading screws for the fans. Would also guess a drill would take care of any issues there.

 

[Monkey Man]

Moved to Hobbies so it can live cosily with the other computer stuff...