Concerned about heating in a dual RTX 3090 setup

This is my current setup:

**CPU**: i7 12700kf

**Motherboard**: Asrock z690 riptide pg

**RAM**: GeiL DDR 16gb 3000mhz (x2)

**Disks**: 1tb nvme (x2)

**PSU**: XPG Core Reactor 750w

**GPU**: RTX 3090 Msi Ventus

**Case**: XPG Invader

I work with deep learning and i'm willing to add another 3090. I'll upgrade PSU to an XFX PS1600PG 1600w, and possibly add a couple of 16gb ram sticks. I've been researching and found that for multi gpu setups, is advisable to use blower …

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