Last year, I built a new PC after a 7-year break, and the only component I didn't upgrade was my CPU AIO cooler. It's been cooling my delidded 8700k for years, and now it has been handling my 9800X3D for the past 13 months. It seems to be functioning fine, but I have a few concerns: 1) I find the iCUE software frustrating, 2) the RGB lighting sometimes works incorrectly with OPENRGB, and 3) the cooler can get a bit noisy. To get a significant upgrade, I'd likely need to switch from my 280mm cooler to a 360mm one, which could cost $200-$250. What are your thoughts on this?
6 Answers
As long as your current cooler is keeping your CPU cool under load, there's no need to rush into replacing it. If aesthetics aren't a concern for you, I'd say stick with what you have. I've used my H115i Elite Cap for over 5 years now, and it still keeps my CPU cool as a cucumber.
If it fits in your case, consider switching to the ARCTIC Liquid Freezer III Pro 360. Alternatively, the Thermalright Phantom Spirit 120 SE is a solid option for the 9800X3D. Just keep in mind, the liquid in your current AIO likely evaporated over time, so a new one could actually lower your temps. Lower temps could yield better and more stable performance for your Ryzen.
If temps are holding steady, upgrading isn't essential. Monitor for any performance drop over time. I'm a fan of Deep Cool; they work well without needing extra software. Just keep an eye on temps with something like Fan Control. I've had some experiences with NZXT's Kraken—good performance but be wary of their CAM software. I did have to RMA one years later, and they handled it well, but it left me cautious about their reliability.
There are some impressive 360mm AIOs available for around $50 that include RGB. The 9800X3D is pretty easy to cool. Spending $200-$250 is really unnecessary unless you want all the fancy aesthetics. Lots of good options under $100 from brands like Arctic or Lian Li that perform well without breaking the bank.
I recommend getting a new AIO instead of putting a 7-year-old one in a new build. Why take the risk of a leak or pump failure? Not to mention, there are plenty of great air coolers available as well. You can often find combo deals on sites like Newegg that offer good AIOs for under $150, and it might be worth selling off some extras for the hassle.
You might be surprised, but Thermalright AIOs are performing great and can be half the price of what you’re expecting to pay. It's no longer necessary to spend a ton on a decent cooler, especially if you're just looking for something reliable and quiet.
Seriously, they must be losing money producing those. I've got a couple, and they're fantastic!

I got one for just $30 last July, and it's super quiet while cooling my unlocked 105w 9700x easily!