Wanted to give the Jonsbo X400 case a shout because the airflow design is genuinely clever and I don't really see it talked about. At all. (Photos show the Pro but all this applies to the regular models as well.)
Video because why not: https://imgur.com/a/deJg234
It's a dual-chamber case with the usual bottom intake and top exhaust AIO setup. But the thing that makes it great is the baffled air intake on the side, above the motherboard. Two fans sit hidden behind the baffle, pulling in fresh air and firing it straight down across the motherboard, VRM, RAM, all of it. That air then gets pulled up through the AIO radiator and exhausted out the top. So those two baffle fans are doing double duty, cooling everything on the board and feeding the AIO rad with air that barely picks up any heat on the way down.
Build is a 9850X3D with a -25 undervolt and an Astral 5090 BTF OC undervolted to ~0.880V (runs at about 430W and 2730 MHz under load, which is higher than the OC profile). AIO is a Hydroshift 2 LCD-S running at a flat 2200 RPM.
Fans are NZXT Performance series, and they haul ass. Say what you want about NZXT, I'm not a fan (lol), but I have to give them credit for these.
Case fan curves max at 30%. GPU fans max at 60%, rear (loser) GPU fan is 30% max.
- 3x bottom fans intake into the GPU.
- 3x AIO fans exhaust up top.
- 2x hidden baffle fans on intake.
- That's it! No front fans, no rear fans.
Temps under load after 1hr heat soak in a 72°F room:
- GPU: 65°C
- CPU: 68°C
- VRM: 40°C
- RAM: 41°C
- Motherboard: 42°C
- Chipsets: 52°C / 48°C
- My realistic test case is Star Wars Outlaws, 4K res, everything maxed, DLSS Quality, 2x framegen
- As an FYI for an unrealistic test case, running Cinebench 2026 and Speed Way @ 5K res (because 4K doesn't move the needle) at the same time: 66°C GPU, 80°C CPU, still within the fan curve listed above (83°C is when the AIO fan set starts to ramp up past 30%)
This thing lives in my living room next to the TV, so whisper-quiet was important. Under that same load, the build puts out 36 dB measured at 9 inches away. The ambient in the room is 30.5 dB. Good times.
Side thoughts:
-
The Pro model has an all-metal frame and is really solid; no flex, no shearing, no creaking when you move this thing around fully loaded, which is such a nice QOL factor.
-
Yes, the Xeneon Edge is unapologetically for vibes only.