NZXT H1 Ultimate GPU Airflow Mod (2x 140 mm Noctua)

I was unhappy with the cooling performance of the stock Gigabyte shroud. The fans were circulating the air more than sucking it in form outside. Also they were tiny and loud.

I was wondering what's the biggest size of fans i could fit in a tiny H1. After taking some measurements, I choose Noctuas NF-A15, which suit this case like a glove.

GPU height is a bit of an issue. With a 25mm tall heatsink on my GPU, i get a little bit of bending. Although it's not too bad.

You need:

• NZXT H1
• Deshrouded GPU, heatsink must not be taller than ~25mm (Distance from PCB top to heatsink top) (Gigabyte RTX 3070 Gaming OC works)
• 2x GPU fan to regular fan adaptor cable (Aliexpress is your friend)
• 2x Noctua NF-A15
• 8x M3 Nuts and Bolts (around M3x20 should work)

Instructions (also refer to the pictures)

• Print each bracket 4 times
• Remove your GPU and make sure the its heatsink is no taller than 25mm.
• Deshrout it. If you need to remove the heatsink, make shure you attach the fan adaptor cables before re-attaching the heatsink
• While you're at it, replace that fire hazardy GPU riser cable.
• Place your GPU, don't screw in the backpanel screws just yet.
• Route your cables and install the bottom fan fisrt and then the top one.
• Put in the 2 backpanel screws.
• Wire everything up. Done.