Hey everyone! You all helped me a lot with my new PC build choices, and I just need a little more guidance to wrap things up. Here's what I've got so far:
1. CPU: Ryzen 7 9800X3D
2. GPU: Powercolour Hellhound 9070 XT
3. RAM: Corsair Vengeance CL32-6000 MHz
4. SSD: Samsung 990 Pro (PCie 4.0) 2TB with heatsink
5. Case: Jonsbo Z20
6. Motherboard: Eagle B850 Ice White mATX WIFI6
7. PSU: ASRock PG-850G, 850W
8. Cooler: Thermalight Phantom Spirit 120SE ARGB
I'm also thinking I need some case fans.
Here are my questions:
1. Is the 850W power supply sufficient for this setup? I want to add another NVMe drive for my boot disk.
2. Since my motherboard has a PCie 5 slot for NVMe and a PCie 4 slot, can I safely install an additional Gen 4 SSD (including the boot drive)? Will this create any performance issues?
Also, I got the ASRock Phantom Gaming PG27Q15R2A monitor for 1440p gaming and main tasks. What would be a good second monitor for multitasking without breaking the style?
2 Answers
You've got plenty of power with that 850W PSU; even a good 650W would work for your build. You'll have room for future upgrades. As for adding an NVMe SSD, that should work just fine, although there may be a slight reduction in speed due to the secondary NVMe drives running through the chipset, but it's usually not too much to worry about.
If you're looking to optimize your build further, I’d recommend considering a 7800X3D with a 5070ti instead. When it comes to M.2 speeds for gaming, the difference isn't drastic, so going for a cheaper M.2 SSD without a heatsink could be fine. And about aesthetics, it sounds great to mix black and white components! Just make sure your PSU matches your theme, brands like Corsair or Lian Li are top choices.
I’m sticking with my black and white look with red wiring, so I'm not going full monochrome. Just wanted to confirm that using a Gen 4 NVMe in the PCie 5 slot won’t bottleneck performance too much, right? And using the faster NVMe as my boot drive makes sense?

Thanks! I was a bit anxious about needing a larger PSU. Do you know how much speed reduction might happen with secondary NVMe drives? It's hard to find reliable info on that.