I'm fairly new to choosing PC parts and would appreciate a sanity check on this build. I already have an SSD, but I still need to choose a case and I'm not sure how to determine compatibility or airflow requirements. Are these parts a good match, or would you recommend changing anything?
- Gigabyte GAMING OC Radeon RX 9070 XT 16 GB graphics card
- AMD Ryzen 7 9800X3D 8-core processor
- MSI MAG B850 TOMAHAWK MAX WIFI ATX AM5 motherboard
- Patriot Viper Venom 32 GB (2 x 16 GB) DDR5-6000 CL30 memory
- Thermalright Phantom Spirit 120 SE CPU cooler
- Corsair RM850e (2025) 850 W fully modular power supply
2 Answers
The parts look well matched overall. The 9800X3D and RX 9070 XT make a strong gaming combination, DDR5-6000 CL30 is a good choice for AM5, and the Phantom Spirit should be more than capable of cooling the processor. An 850 W power supply is also a sensible capacity for this setup. For the case, look for an ATX-compatible model with good front or bottom intake airflow, space for a large graphics card, and enough CPU-cooler clearance for the Phantom Spirit. Checking the case’s GPU-length and cooler-height specifications against your exact parts is the main thing.
Nothing immediately stands out as needing replacement. Just make sure the case supports a full-size ATX motherboard and has at least three or four quality fans, or budget for additional fans if it does not include them. A mesh-front case will generally be preferable to one with a solid glass or closed front panel, especially with a powerful graphics card.

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