Consider upgrading to B550 and 3600 CL16 for better performance.
Consider upgrading to B550 and 3600 CL16 for better performance.
You can purchase RGB controllers that transform 5V RGB signals into 12V ARGB outputs.
You're right about the O11 Mini supporting only SFX. New power supplies with strong performance (750+) are uncommon and costly. For cooling, the O11 line is designed for water-based systems—avoid air coolers. Which board model are you considering? Upgrading your RAM will likely require a board upgrade to unlock its full capabilities. This might not significantly impact things except for direct GPU data transfers. A 16x PCIe Gen3 connection works well. NVMes have little effect. What memory choice do you have in mind? Depending on RGB needs, you might need splitters or a dedicated RGB controller. The LianLi Unifans could also work, offering fewer headers.
It shouldn't be an issue. I considered an air cooler system with an AIO for the CPU—it looks quite appealing. The TUF B450M PRO gaming setup is compatible with MSI MAG B550M models, and there are several options available on Amazon. The RGB converter GAMER STORM ACCESSORY might also be useful.
Hope you're ready for a PSU purchase. The one you see won't fit. You have three solid 750W options, an 800W model, and a strong 1000W choice—though it's listed as Tier D in the catalog, which is unusual since it's only available for a couple of months. Most of these are sold out for a long time. That’s okay. Just avoid mounting the GPU straight up. I’d suggest using a side-mount for the AI cooler and adding three 120mm fans at the top and bottom. If you want extra space, consider an ATX build to ensure both top and bottom fans fit. ATX could be tricky with bottom-mounted fans, but the official spec says 20mm clearance. This model was built with custom water cooling in mind, so you’ll get the most out of it when creating a loop. Go for the MSI B550M Mortar. The Bazooka has the weakest power supplies and a small cooler. The Gigabyte B550M Aorus Pro-P lacks a USB Key-A header, as does the AsRock B550M Steel Legend—both also have less powerful VRMs than the Mortar. The Aorus Pro-P offers one extra CPU phase, but the Mortar uses 60A MOSFETs, which isn’t a huge gap. Consider opting for the WiFi version too; it might save about $15 in the long run. Check the mainboard’s QVL to ensure your RAM matches the required speed and capacity—B-Die is ideal. With this board, you can use the 12V analog RGB connector and apply addressable 5V power on it. The MSI Mortar boards have two addressable 5V RGB headers each supporting up to 3A (75W per LED), so adding more could risk damage. What you really need is a solution that connects to the addressable header, allowing you to control the strips separately. Phanteks offers an addressable digital RGB controller, among others. They require their own power supply, which means connecting several strips manually. Otherwise, there’s a chance of harming your board if you exceed the 3A limit. There are also USB-connected controllers that don’t link to the header, requiring additional software and multiple configurations.