Upgrading from a 5700x system
I currently have a Ryzen 5700x build with an Asus B450-F Gaming mobo. I've saved up some money to finally upgrade to a Ryzen 9600x build but wanted some opinions on the planned build. It'll mainly be used for gaming on an ultrawide monitor (Alienware aw3423dwf).
The GPU, Storage, and CPU Cooler are from my current build. Everything else will be new. My current case is a Rosewill Cullinan MX but im still deciding if I want to keep the case or go with the H5 Flow. The issue is my PC shroud in my desk is limited to these dimensions
Height 20in
Width 9.8 in
Depth 19in
I do want to keep some buffer space for airflow, especially for a top vent. My Cullinan currently sticks out until the bottom legs reach the edge so the depth isn't too much of a concern. Thw width is a little tight at the moment with this case, especially with how the glass panel screws stick out from the sides.
Side question: I have an old stick of Cooler Master Thermal Fusion 400 from idk how long ago. Should I get a new thermal paste with the build and which brand/series should I go for? I don't live in a consistently hot city but the summers do get hot, averaging high 80s to low 90s (excluding this heatwave).
Edit: Also looking at the Corsair iCue 220T Airflow Mid Tower
[PCPartPicker Part List](https://pcpartpicker.com/list/TZtGJw)
Type|Item|Price
:----|:----|:----
**CPU** | [AMD Ryzen 5 9600X 3.9 GHz 6-Core Processor](https://pcpartpicker.com/product/4r4Zxr/amd-ryzen-5-9600x-39-ghz-6-core-processor-100-100001405wof) | $176.00 @ Amazon
**CPU Cooler** | [Thermalright Peerless Assassin 120 SE 66.17 CFM CPU Cooler](https://pcpartpicker.com/product/hYxRsY/thermalright-peerless-assassin-120-se-6617-cfm-cpu-cooler-pa120-se-d3) | $34.90 @ Amazon
**Motherboard** | [ASRock B650 Steel Legend WiFi ATX AM5 Motherboard](https://pcpartpicker.com/product/MgHqqs/asrock-b650-steel-legend-wifi-atx-am5-motherboard-b650-steel-legend-wifi) | $159.99 @ Amazon
**Memory** | [Crucial Pro 32 GB (2 x 16 GB) DDR5-5600 CL46 Memory](https://pcpartpicker.com/product/3L9wrH/crucial-pro-32-gb-2-x-16-gb-ddr5-5600-cl46-memory-cp2k16g56c46u5) | $504.83 @ Amazon
**Storage** | [HP EX950 2 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive](https://pcpartpicker.com/product/xM97YJ/hp-ex950-2-tb-m2-2280-solid-state-drive-5ms24aaabc) |-
**Storage** | [Samsung 870 QVO 2 TB 2.5" Solid State Drive](https://pcpartpicker.com/product/R7FKHx/samsung-870-qvo-2-tb-25-solid-state-drive-mz-77q2t0bam) | $505.22 @ Amazon
**Storage** | [Intel 660p 2.048 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive](https://pcpartpicker.com/product/7MQG3C/intel-660p-series-2tb-m2-2280-solid-state-drive-ssdpeknw020t8x1) | $329.99 @ Amazon
**Video Card** | [Asus KO GAMING OC V2 GeForce RTX 3060 Ti LHR 8 GB Video Card](https://pcpartpicker.com/product/KXZ9TW/asus-geforce-rtx-3060-ti-lhr-8-gb-ko-gaming-oc-v2-video-card-ko-rtx3060ti-o8g-v2-gaming) |-
**Case** | [NZXT H5 Flow (2024) ATX Mid Tower Case](https://pcpartpicker.com/product/WZtLrH/nzxt-h5-flow-2024-atx-mid-tower-case-cc-h52fw-01) | $79.98 @ Amazon
**Power Supply** | [be quiet! Pure Power 13 M 850 W 80+ Gold Certified Fully Modular ATX Power Supply](https://pcpartpicker.com/product/dbRnTW/be-quiet-pure-power-13-m-850-w-80-gold-certified-fully-modular-atx-power-supply-bp027us) | $109.90 @ Amazon
| *Prices include shipping, taxes, rebates, and discounts* |
| **Total** | **$1900.81**
| Generated by [PCPartPicker](https://pcpartpicker.com) 2026-07-03 23:59 EDT-0400 |