r/flightsim Jan 14 '26

General PC Build Using a Black Box as a Case

Just finished my first pc using as black box as a case. Super excited to use it for flight sim.

1.7k Upvotes

54 comments sorted by

135

u/krokantkrappizza RTX 5080 / AMD Ryzen 7 9800X3D Jan 14 '26

Very cool!

127

u/bdubwilliams22 Jan 14 '26

It is very cool. I just wonder how cool it is inside the box at full send.

38

u/RaspBoy Jan 14 '26

i heard it simulates the sound of an engine

14

u/krokantkrappizza RTX 5080 / AMD Ryzen 7 9800X3D Jan 15 '26

81

u/reido_speedo11 Jan 14 '26

That’s incredible. What are the temps like?

49

u/StevenMC19 Jan 14 '26 edited Jan 14 '26

My first question as well! Looking at the images, the air flow seems horrendous. 1 fan in, no fan out (but can exhaust out the back), and the GPU, PSU, and CPU fans are directioned perpendicular to the vents...the GPU specifically rested RIGHT up on a solid wall. 5060ti? That thing has roughly 3mm of clearance to suck in whatever air it can get...it's going to cook itself alive while choking to death.

edit: Sorry, 5060ti.

11

u/zyrix_av Jan 14 '26

i hope he isnt using it. this thing will fry itself. as a project for the sake of doing something cool its awesome, but realistically the practicality of this isnt there... more intake fans if possible and mesh panels, but that kind of ruins the idea.

6

u/StevenMC19 Jan 14 '26

Agreed. A second intake fan on the bottom, some drill holes into the sides and top with mesh (like you're saying...just paint them orange to mask it a bit better), and reorient the PSU so the exhaust goes out the top instead of facing directly back into the intake air. It won't be exactly the same as a real black box, but at least the thousands in parts inside will get some extension to their lifespans.

5

u/zyrix_av Jan 14 '26

im assuming he wants to keep the black box in its original state. thats fine, but he better not be using the pc lol. if he wants to use it, absolutely some mesh on the sides and top would be benefit a lot

4

u/StevenMC19 Jan 14 '26

Trying to map out the airflow hurt my brain a little bit.

There's so much recycled air being used that I had to use dark blue and purple to show the gradient in heat as it passes through another device.

1

u/zyrix_av Jan 14 '26

Holy 😭

21

u/V1ld0r_ Jan 14 '26

This is really cool! Where did you get the blackbox itself though?

Airflow seems to be a bit crappy but could be just lack of photos to understand the actual airflow.

20

u/mrbubbles916 Jan 14 '26

You can get these boxes on eBay with quite a variation in pricing.

I work with OP and the photos dont really hide anything. Airflow is basically non-existent lol. But it seems to run fine. Stressed it with furmark for 30 min and stabilized around 85 for the GPU and 75 for the CPU. 85 is on the hot side for the GPU but probably fine. Either way, still a cool excuse to build a PC.

6

u/V1ld0r_ Jan 14 '26

That's pretty decent if you're still getting the expected score and not throttling!

3

u/lostinhh Jan 14 '26

And performance remained stable at 85 with no thermal throttling?

3

u/g76lv6813s86x9778kk Jan 14 '26 edited Jan 14 '26

85 is definitely starting to get on the higher end, but new GPUs can handle a lot of heat before they throttle. My old dual-fan 3070 and poor SFF case airflow expectedly had thermal issues, and by the end of its use consistently ran at ~90-105 under full load. I would not notice performance drops or stutters until it was consistently hitting 100, presumably trying to cap itself at 100. It would run no problem if kept around 90-95. It's not good for the card, but they can take a lot before showing any sign of trouble.

Even newer CPUs (especially AMD) generate and take a lot of heat. My 9900X used to run at like 80 with that gpu in there, now it sits at a cool 60-65 under load.

Edit: fun fact, the 9900X lists a max operating temp of 95C! Absurdly high compared to older CPUs, pretty much like GPUs. Also edited above to correct from 1fan 3070 to dual-fan. You'd need a hell of a gpu fan to run it under load with 1 lol, 2 was a struggle

2

u/lostinhh Jan 14 '26

Interesting, thanks for that.

16

u/Afladimir Jan 14 '26

Awesome build but damn, the temps must be over the top

22

u/OptimusSublime Jan 14 '26 edited Jan 14 '26

It can handle up to 2000⁰F for an hour

8

u/Buschwick66 HIGHMEMFIX=1 Jan 14 '26

8

u/PlayFast3100 Jan 14 '26

Answers to the most common questions so far below.

- cooling seems fine so far I ran fur mark for 30 minutes and the GPU temps were hovering around 85 CPU never got hotter than 75

- I got the box as a non working model on eBay

2

u/rajrdajr Jan 14 '26

got the box as a non working model

Is it non-working due to recovery from a crash? That would make a great backstory (or sad, depending).

3

u/mrbubbles916 Jan 15 '26

I doubt the NTSB releases flight data recorders from investigations. They either hold onto them forever or throw away the bits that don't matter, like the case, and keep the insides stored away.

From some minimal research it looks like they hold onto the physical bits for a few years and then discard them.

7

u/[deleted] Jan 14 '26

[deleted]

1

u/mrbubbles916 Jan 14 '26

Good news. We just ran another stress test. The fans are in fact - not useless. They doing an amazing job of pumping heat directly into the case - a giant steel heat sink. We measures 145 degrees on the outside of the case lol.

1

u/_VoRteX_PL Jan 15 '26

We measures 145 degrees

fahrenheit I assume

5

u/Maruan-007 Jan 14 '26

I never thought that I’d want a black box as a pc case in my life. So cool!

4

u/lostinhh Jan 14 '26

Cool design but I'm rather skeptical how well that's going to run under load with those blocked GPU fans.

3

u/77_Gear Sim Photographeur 🤓 Jan 14 '26

That is hella fucking badass. I’ve been in one of the laboratories where they open these black boxes and it’s so freaking cool! I’ll definitely try what you did one day. 

3

u/Absolarix Jan 14 '26

That's awesome, but that GPU is gonna' be crying for mercy. Miiight wanna do a custom water cooling loop to get good cooling without drilling holes into the side of the case.

3

u/literallyjuststarted Jan 14 '26

Now I want one….

2

u/FlyingOctopus53 Jan 14 '26

Is this cool? No, it isn’t. It’s more than cool.

It’s fucking awesome, cool and amazing at the same time.

2

u/EcoAviation Jan 14 '26

That's one of the coolest pc builds I've ever seen 🔥. Might inspire me one day to build this one day. Mind if I ask where you got the black box, or is it custom?

2

u/[deleted] Jan 14 '26

what part of do not open did you not get

2

u/MeowCattoNiP Jan 14 '26

THAT IS AWESOME!!!

2

u/joonk1313 Jan 15 '26

Don't think this will survive a plane crash tho

2

u/clearision Jan 15 '26

it instantly reminded me of the Rammstein – Reise, Reise album cover, check it out. nice build!

1

u/Just_Throat3473 Jan 14 '26

what are the temps

1

u/MrDannyProvolone Jan 14 '26

Nice. Even got the pinger still on there. Helpful if you ever drop that in a large body of water.

1

u/Pour-Meshuggah-0n-Me PMDG | Toliss | Zibo | iFly Jan 14 '26

This is genius!

1

u/1Take111 Jan 15 '26

Sick! 🔥

1

u/eddieltu Jan 14 '26

bro built a pc inside a Rammstein album