Thanks for your reply.
Many standard case fans are almost worthless.
I am aware of that. My case came with a total of two stock fans, which have sleeve bearing and provide good balance between airflow CFM per watt and decent noise levels (at least if you look on the label).
Still I have resorted to using only one of the stock fans, the 200 mm one. All others you see are after-market, added by me. I have listed what types of fans I am using below:
1 x 200 mm (stock - front panel) - NZXT FN 200
1 x 140 mm (front panel) ARCTIC F14 140
1 x 120 mm (stacked with the front 140mm for more concentrated airflow) - Cooler Master SickleFlow 120 (the useless
1 x 140 mm (side panel - forgot to draw it on the pic) - NZXT FZ-140
1 x 140 mm (down panel) NZXT FZ-140
1 x 140 mm (stock - back panel) NZXT FZ-140
3 x 120 mm (upper panel) 1 x ARCTIC F14 140, 2 x Noiseblocker NB-BlackSilentFan XL-1 120mm
The bottom intake fan is good but would do much better if you raised your case up with some spacer blocks under the feet so there is 35-45mm of space between case bottom and what case sets on.
I am using "spacer blocks" indeed, perhaps not clearly seen by the pictures. My PC is raised a good 4 cm from the desk to allow for air intake.
My spacer blocks are dumbbell bolts like those
Removing all PCIe back slot covers will give you about as much additional rear vent area the top one has and greatly improve front to back airflow around GPU .. and likey lower temps.
Those are already removed (guess not easy to see from my pics) and this is where I have put the purple colored "fan placement" from my original post.
, but your fan layout is way more than needed
I was almost about to title my post "am I overdoing things", thanks for the confirmation, haha!
For stacking to help airflow there has to be an airflow straightener (like raidator) between fans to get any improvement.
This is something I learned today, great!
I shall explore the resources provided to educate myself. AFAIK briefly put 2/3 of the tips you gave me I have already applied, yeeey!
That being said, I am not really looking for optimization atm
, just wondering how popular is the "mod" i did with ripping out the DVD and putting fan(s) there