u/InvaderJ

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.

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.

Story time! This is the Engine Block.

I wanted to build something around a rotated motherboard case so the GPU would sit upright without a vertical mount. The SSUPD Xhuttle is one of maybe two cases on the market that does this, and it's the better designed one. So its uniqueness was the starting point.

This PC was meant to sit in my living room. One of the goals was to make it visually interesting even when it was off. Something that catches your eye without immediately reading as "gaming PC." Alongside that, I had this engine block concept in mind from early on: two massive black components (the GPU and air cooler) as the focal point, framed by white everything-else.

The third goal was more practical. The ASUS TUF B850 BTF motherboard is covered in embossed marketing slogans that are genuinely awful. Truly hideous. I needed to cover them up, but I also needed whatever covered them to not trap heat over the VRMs and RAM. The solution was a set of layered white powder-coated aluminum shroud panels that mounted between the motherboard and the GPU/cooler. They hid the board completely while allowing airflow underneath. As a bonus, they supported the engine block look by making the two big black components appear to float inside the case, with everything else fading into clean white. The Xhuttle also supports an additional fan mounted behind the motherboard doing exhaust duty, which definitely helped keep things cool under the shrouds.

The other thing I'm proud of is the stats display. I wanted a dynamic system monitor but refused to use an LCD because when it's off, it's black, and I already had two large black elements. A third would have thrown off the balance! So I grabbed a ReTerminal e-ink display and built a custom stats system that uses partial screen refresh to update temps, usage, and clocks every 5 seconds. When the PC was off, the display stayed white and blended into the build. When it was on, it looks really unique given the white surrounding aesthetic. Honestly this was probably the coolest part of the whole build.

Now, thermals. Ugh. Rotated motherboard cases with upright GPUs are thermally complicated, and a 5090 dumping heat into a compact enclosure made this an ongoing challenge. I went through several iterations. What I landed on:

• Top (exhaust): 3x Corsair RX120 MAX. These fans are absolute units. They move serious air while staying quiet.
• Bottom (intake): 3x Corsair LX120-R reverse fans. I originally had 3x RX120 MAX here too, but the back of those fans looked bad from behind. The reverse LX120-Rs solved the aesthetics.
• Rear: I experimented with fans here and found they dropped CPU temps by maybe 3-4°C but did nothing for GPU temps. Not worth the clutter. I replaced them with a custom white aluminum panel for a cleaner look.

The 5090 ran undervolted and at 85% power. The 9800X3D was stock. Under load, the GPU sat between 76-71°C and the CPU between 74-81°C. A little warm for some people, but for me it was an acceptable tradeoff between thermals and noise in a living room setting.

This post isn't me saying I nailed it because I definitely didn’t. This case was tricky, I knew that going in. This was seeing how far I could push top-tier components in a unique form factor while chasing a very specific look. The custom shrouds, the engine block theme, and especially the e-ink display were all experiments. Some worked out better than others! Sharing in the hopes that it inspires others to get messy and experiment. :)

Specs:

• CPU: AMD 9800X3D
• GPU: ASUS ROG Astral 5090 BTF
• Cooler: DeepCool Assassin VC Elite
• Mobo: ASUS TUF B850 BTF
• RAM: 64GB Teamgroup T-Create
• Storage: 2TB WD Black NVMe
• Case: SSUPD Xhuttle
• Fans: 3x Corsair RX120 MAX (top), 3x Corsair LX120-R (bottom)

Story time! This is the Engine Block.

I wanted to build something around a rotated motherboard case so the GPU would sit upright without a vertical mount. The SSUPD Xhuttle is one of maybe two cases on the market that does this, and it's the better designed one. So its uniqueness was the starting point.

This PC was meant to sit in my living room. One of the goals was to make it visually interesting even when it was off. Something that catches your eye without immediately reading as "gaming PC." Alongside that, I had this engine block concept in mind from early on: two massive black components (the GPU and air cooler) as the focal point, framed by white everything-else.

The third goal was more practical. The ASUS TUF B850 BTF motherboard is covered in embossed marketing slogans that are genuinely awful. Truly hideous. I needed to cover them up, but I also needed whatever covered them to not trap heat over the VRMs and RAM. The solution was a set of layered white powder-coated aluminum shroud panels that mounted between the motherboard and the GPU/cooler. They hid the board completely while allowing airflow underneath. As a bonus, they supported the engine block look by making the two big black components appear to float inside the case, with everything else fading into clean white. The Xhuttle also supports an additional fan mounted behind the motherboard doing exhaust duty, which definitely helped keep things cool under the shrouds.

The other thing I'm proud of is the stats display. I wanted a dynamic system monitor but refused to use an LCD because when it's off, it's black, and I already had two large black elements. A third would have thrown off the balance! So I grabbed a ReTerminal e-ink display and built a custom stats system that uses partial screen refresh to update temps, usage, and clocks every 5 seconds. When the PC was off, the display stayed white and blended into the build. When it was on, it looks really unique given the white surrounding aesthetic. Honestly this was probably the coolest part of the whole build.

Now, thermals. Ugh. Rotated motherboard cases with upright GPUs are thermally complicated, and a 5090 dumping heat into a compact enclosure made this an ongoing challenge. I went through several iterations. What I landed on:

• Top (exhaust): 3x Corsair RX120 MAX. These fans are absolute units. They move serious air while staying quiet.
• Bottom (intake): 3x Corsair LX120-R reverse fans. I originally had 3x RX120 MAX here too, but the back of those fans looked bad from behind. The reverse LX120-Rs solved the aesthetics.
• Rear: I experimented with fans here and found they dropped CPU temps by maybe 3-4°C but did nothing for GPU temps. Not worth the clutter. I replaced them with a custom white aluminum panel for a cleaner look.

The 5090 ran undervolted and at 85% power. The 9800X3D was stock. Under load, the GPU sat between 76-71°C and the CPU between 74-81°C. A little warm for some people, but for me it was an acceptable tradeoff between thermals and noise in a living room setting.

This post isn't me saying I nailed it because I definitely didn’t. This case was tricky, I knew that going in. This was seeing how far I could push top-tier components in a unique form factor while chasing a very specific look. The custom shrouds, the engine block theme, and especially the e-ink display were all experiments. Some worked out better than others! Sharing in the hopes that it inspires others to get messy and experiment. :)

Specs:

• CPU: AMD 9800X3D
• GPU: ASUS ROG Astral 5090 BTF
• Cooler: DeepCool Assassin VC Elite
• Mobo: ASUS TUF B850 BTF
• RAM: 64GB Teamgroup T-Create
• Storage: 2TB WD Black NVMe
• Case: SSUPD Xhuttle
• Fans: 3x Corsair RX120 MAX (top), 3x Corsair LX120-R (bottom)

Story time! This is the Engine Block.

I wanted to build something around a rotated motherboard case so the GPU would sit upright without a vertical mount. The SSUPD Xhuttle is one of maybe two cases on the market that does this, and it's the better designed one. So its uniqueness was the starting point.

This PC was meant to sit in my living room. One of the goals was to make it visually interesting even when it was off. Something that catches your eye without immediately reading as "gaming PC." Alongside that, I had this engine block concept in mind from early on: two massive black components (the GPU and air cooler) as the focal point, framed by white everything-else.

The third goal was more practical. The ASUS TUF B850 BTF motherboard is covered in embossed marketing slogans that are genuinely awful. Truly hideous. I needed to cover them up, but I also needed whatever covered them to not trap heat over the VRMs and RAM. The solution was a set of layered white powder-coated aluminum shroud panels that mounted between the motherboard and the GPU/cooler. They hid the board completely while allowing airflow underneath. As a bonus, they supported the engine block look by making the two big black components appear to float inside the case, with everything else fading into clean white. The Xhuttle also supports an additional fan mounted behind the motherboard doing exhaust duty, which definitely helped keep things cool under the shrouds.

The other thing I'm proud of is the stats display. I wanted a dynamic system monitor but refused to use an LCD because when it's off, it's black, and I already had two large black elements. A third would have thrown off the balance! So I grabbed a ReTerminal e-ink display and built a custom stats system that uses partial screen refresh to update temps, usage, and clocks every 5 seconds. When the PC was off, the display stayed white and blended into the build. When it was on, it looks really unique given the white surrounding aesthetic. Honestly this was probably the coolest part of the whole build.

Now, thermals. Ugh. Rotated motherboard cases with upright GPUs are thermally complicated, and a 5090 dumping heat into a compact enclosure made this an ongoing challenge. I went through several iterations. What I landed on:

• Top (exhaust): 3x Corsair RX120 MAX. These fans are absolute units. They move serious air while staying quiet.
• Bottom (intake): 3x Corsair LX120-R reverse fans. I originally had 3x RX120 MAX here too, but the back of those fans looked bad from behind. The reverse LX120-Rs solved the aesthetics.
• Rear: I experimented with fans here and found they dropped CPU temps by maybe 3-4°C but did nothing for GPU temps. Not worth the clutter. I replaced them with a custom white aluminum panel for a cleaner look.

The 5090 ran undervolted and at 85% power. The 9800X3D was stock. Under load, the GPU sat between 76-71°C and the CPU between 74-81°C. A little warm for some people, but for me it was an acceptable tradeoff between thermals and noise in a living room setting.

This post isn't me saying I nailed it because I definitely didn’t. This case was tricky, I knew that going in. This was seeing how far I could push top-tier components in a unique form factor while chasing a very specific look. The custom shrouds, the engine block theme, and especially the e-ink display were all experiments. Some worked out better than others! Sharing in the hopes that it inspires others to get messy and experiment. :)

Specs:

• CPU: AMD 9800X3D
• GPU: ASUS ROG Astral 5090 BTF
• Cooler: DeepCool Assassin VC Elite
• Mobo: ASUS TUF B850 BTF
• RAM: 64GB Teamgroup T-Create
• Storage: 2TB WD Black NVMe
• Case: SSUPD Xhuttle
• Fans: 3x Corsair RX120 MAX (top), 3x Corsair LX120-R (bottom)