GPU EMI

[AlbertA]

So now-a-days I'm running my GPU at 100%... that sucker emits the nastiest EMI apparently when it's loaded.

So....I'm on the hunt for a new computer case - Does anyone have any leads on a good metal case that can contain EMI but also have good thermal performance?

 

[Rex]

You want a case that's all metal. Everywhere. Ventilation through tightly-spaced holes in the sheet metal. No fancy see-through panels to show off your dust bunnies and colored flashing lights.

Don't worry about thermal performance. Your fans will take care of that.

 

[iaresee]

be quiet! Silent Base -- window-less of course.

 

[AlbertA]

Thanks,

be quiet! Silent Base -- window-less of course.

Awesome thanks!

 

[Rex]

be quiet! Silent Base -- window-less of course.

These seem to be marketed for low acoustic noise. They don't mention EMI reduction.

 

[iaresee]

These seem to be marketed for low acoustic noise. They don't mention EMI reduction.

it's a big, steel box.

Some other tips to be found at the end of https://www.amd.com/system/files/TechDocs/31684.pdf but you're much better with a solid metal box where all sides contact each other.

 

[Piing]

I've heard that DIY solutions with EMI shielding tape or sheets give better results than some cases that claim to be EMI protected

https://www.aliexpress.com/wholesal...=SB_20210906160520&SearchText=EMI+shield+tape

 

[Rex]

it's a big, steel box.

...you're much better with a solid metal box where all sides contact each other.

So true... IFF any openings are covered in metal mesh.

 

[Rex]

I've heard that DIY solutions with EMI shielding tape or sheets give better results than some cases that claim to be EMI protected

https://www.aliexpress.com/wholesal...=SB_20210906160520&SearchText=EMI+shield+tape

Shielding tape is for unshielded things. It's no better than the steel that the case is already made of.

 

[iaresee]

So true... IFF any openings are covered in metal mesh.

On the be quiet! stuff it's all steel grating.

 

[Rex]

On the be quiet! stuff it's all steel grating.

That's the way to go.

 

[AlbertA]

This thing is huuuuge:

 

[iaresee]

Yea. They are not tiny cases. But built great.

 

[Rex]

This thing is huuuuge:

I just had a quick look at the video. Apparently some of their outer panels are plastic, not steel (4:26). If that's the case (pun alert!), this wouldn't be the best choice for EMI reduction.

 

[iaresee]

I just had a quick look at the video. Apparently some of their outer panels are plastic, not steel (4:26). If that's the case (pun alert!), this wouldn't be the best choice for EMI reduction.

Interior is all steel.

 

[Rex]

Interior is all steel.

Cool.

 

[AlbertA]

Interior is all steel.

You have one of these?

What about the front of the case - it seemed like the area where the fans mount in the front there's no metal mesh there.

 

[iaresee]

You have one of these?

What about the front of the case - it seemed like the area where the fans mount in the front there's no metal mesh there.

I have an older one here. It's about 3 years old now. I'll check, but I could have sworn it's all metal on the front.

Mount and screen for fans is plastic, but the door in front of it all is metal.

 

[Rex]

Here is the current 802. If the mesh in the front door is metal — and there's continuity between it and the chassis — you're good to go. If the mesh is plastic (some are), then not so much.

 

[AlbertA]

Some good suggestions here:
https://forum.fractalaudio.com/thre...ctric-noises-when-turning-on-pc.151624/page-2

Just a big hunking metal box, which is what I was looking for
https://www.antec.com/product/case/nsk4100

Or the javajunkie approved non-window options here:
https://www.fractal-design.com/products/cases/define/