AM4 Mobo VRMs paired with 5950X for enhanced performance
AM4 Mobo VRMs paired with 5950X for enhanced performance
Check the clock, it’s the usual time for a hardware refresh. Just like last year when I swapped out my graphics card three years ago—replacing it with a 6900XT—now it seems the CPU is due for an upgrade. My current setup has a 3700X paired with the Gigabyte B450I Aorus Pro motherboard, which isn’t great for power delivery. Gaming use has faded, and I mainly edit photos at 61MP resolution, so extra cores would be a nice boost. Stitching panoramas is CPU-heavy, especially with my current software. I considered the 5900X—it’d improve single-core speed with Zen 3 and more threads—but it’s a bit heavier in power use than the 5950X. At around £10 less for a used 5900X, it might be worth it. The main concern is whether my motherboard can handle the heat from a higher-power chip. I’ve noticed in the past five years that older 400-series mobos, like the B450, often struggle with VRMs for higher power chips. Has anyone had success with them long-term? I haven’t heard much lately. If it makes sense, a fan should be blowing air onto the VRMs; the 2x240mm loop should manage the extra heat, though maybe a slightly more aggressive fan curve would help. Thanks ahead!
Consider switching to the 5950X or 5900XT, but you could also update the BIOS if needed. If that doesn’t work, replacing the motherboard with a B550 might be an option, though I’d test the 5950X first. Regarding RAM and storage, what are your current specs?
The detailed review highlighted issues with the 4+2 phase VRM, suggesting it isn't ideal for overclocking. It mentions that the VRMs may throttle after just five minutes, which could affect performance on higher-end parts like the Ryzen 9. If the cooling system isn't strong enough, adjusting power settings might be necessary. Undervolting can help maintain thermal stability without major performance drops, though it carries some risk of instability. Results depend on the specific chip and design. Avoiding undervolting could still yield some gains by limiting CPU power, especially during long-running tasks where VRM throttling occurs.
Are you still listing the Corsair 240 Air in your profile? Are you limited to the ITX size? Your current B450i PRO may not handle a 5950X at maximum output. It’s worth testing it, though—keep an eye on the motherboard temps. Based on the board running a 4+2 VRM with 50A power stages (IR 3556), I’d recommend considering a B550 board instead.
Hope you locate them easily. A fresh 5800X3D is available on PCPP for around $700, while a 5700X3D is listed at $400. Nearby shops have 5800X3Ds starting near $300. The AM4 power solution is no longer accessible due to high costs. Since you can't afford the outdated AM4 setup, consider switching to an AM5 board. A B850 model is priced around $120, just a bit more than well-ventilated B450/550/X470/570 boards.
Only one B850 board is available under $120 on PCPartPicker. The others start at $140 or more, which I understand. If you require a fresh motherboard, opting for AM5 might be worthwhile even with a B650—especially since the 7950X comes with a high core count. It can be tough to justify such a price tag plus board and RAM versus a 5950X with a similar board. Prices listed on PCPartPicker include shipping, taxes, and any available discounts. These numbers were generated on September 26, 2025.
Used 5950x and used b550 models show a noticeable price difference compared to other options like the Microcenter 265k bundle. Chips such as 7900(x)/9900x and especially the 265k version tend to be more expensive, while the 7950x + b650 could offer good value if you spot a solid deal.
I completely missed setting up this discussion... (sorry for the awkward edits). For those curious, I recently purchased a 5900XT because it was on sale nearby and it brought back memories of this thread. It seems worth testing it out to see how the motherboard performs. Technically, everything checks out with the RAM, Crucial/Micron Rev.E (or Rev.B) 2x32GB at 3200MHz CL16 – decent but not exceptional. Storage options include Crucial P3 2TB, MX300 1050GB, Sandisk Ultra 3D G25 2TB, plus a small NAS with Seagate Ironwolf drives. Overall, it looks like a balanced setup, possibly handling a full 16-core workload without major issues, though it might struggle under heavy demands. I’m considering lowering the voltage and boosting clocks if needed. After all, I’ve done similar tweaks before – once I undervolted and underclocked my 6900XT to 1875MHz, it worked fine. It’s been a while since I used the Air 240, and now I own an NR200. No case changes planned; I’m sticking with ITX. For context... I don’t have a photo of the current build, so this was likely my first setup 5-6 years ago. A few small updates: the Fury is now a 6900XT, the bottom heatsink uses an XSPC TX240, and the top heatsink has a slim Arctic P12. I added a Thermalright TL-9015 after finding a compatible bracket – it was a bit tricky due to the 8-pin connector interfering with the VRM heatsink, so I installed it 92mm on a bracket that came off.