- Joined
- Oct 23, 2010
- Messages
- 924
- Motherboard
- Gigabyte Z77X-UP5 TH
- CPU
- i7-3770K
- Graphics
- RX 580
- Mac
- Mobile Phone
Just starting out on a G5 build.
Going to be using a Lian Li motherboard tray, back plate and I/O Panel from a sacrifice case I mentioned here.
For the rear exhaust fan, I was going to use 120mm fan. It will fit if I don't mount the motherboard tray on the existing G5 stand-offs.
But I plan to use the stand-offs to aid cable management (i.e. hide them under the tray).
So, having made the decision NOT to use a 120mm fan at the rear,
I am now looking for feedback as what to use: two 80mm fans or one 92mm fan ?
They will be Be-Quiet fans most likely.
The back-plate will eventually be flush mounted to the case with JB-Weld.
To practice this welding, I have "prepared" the back-plate by "filling" in the 120mm fan holes and it's mounting holes with scrap pieces cut to size:
Here it is after JB-welding and plenty of elbow-grease to smooth it out before applying primer:
BTW, this was the first I ever used JB-Weld and it's amazing stuff. I left it curing for 30 hours sat next to a hot radiator in the house.
Very strong and grinds down very very smooth with p800 sand paper.
(I took lots of photos for the build log later).
I did some quick mock ups of fan options and how the backplate would be cut to size.
First option is to use the existing G5 dual fan grills behind two 80mm holes:
Second option is to use dual 80mm fans with standard grills:
Third option is one of the existing G5 dual fan grills behind with one 92mm fan:
Apart from the aesthetics of two 80mm vs one 92mm fan, there are efficiency aspect to consider in terms of airflow.
Can I assume 2 x 24 CFM 80mm fans are better than one 34 CFM 92mm fan ?
What do the expert modders recommend - two 80mm or one 92mm fan ?
Going to be using a Lian Li motherboard tray, back plate and I/O Panel from a sacrifice case I mentioned here.
For the rear exhaust fan, I was going to use 120mm fan. It will fit if I don't mount the motherboard tray on the existing G5 stand-offs.
But I plan to use the stand-offs to aid cable management (i.e. hide them under the tray).
So, having made the decision NOT to use a 120mm fan at the rear,
I am now looking for feedback as what to use: two 80mm fans or one 92mm fan ?
They will be Be-Quiet fans most likely.
The back-plate will eventually be flush mounted to the case with JB-Weld.
To practice this welding, I have "prepared" the back-plate by "filling" in the 120mm fan holes and it's mounting holes with scrap pieces cut to size:
Here it is after JB-welding and plenty of elbow-grease to smooth it out before applying primer:
BTW, this was the first I ever used JB-Weld and it's amazing stuff. I left it curing for 30 hours sat next to a hot radiator in the house.
Very strong and grinds down very very smooth with p800 sand paper.
(I took lots of photos for the build log later).
I did some quick mock ups of fan options and how the backplate would be cut to size.
First option is to use the existing G5 dual fan grills behind two 80mm holes:
Second option is to use dual 80mm fans with standard grills:
Third option is one of the existing G5 dual fan grills behind with one 92mm fan:
Apart from the aesthetics of two 80mm vs one 92mm fan, there are efficiency aspect to consider in terms of airflow.
Can I assume 2 x 24 CFM 80mm fans are better than one 34 CFM 92mm fan ?
What do the expert modders recommend - two 80mm or one 92mm fan ?