4 ms·

People can buy cases with glass covers on their sides—I have one—and I do wonder, could they ever sell a complete computer system with these case, due to ESD/RF

by _flux 4y ago

People can buy cases with glass covers on their sides—I have one—and I do wonder, could they ever sell a complete computer system with these case, due to ESD/RF regulations.. Is it a loophole selling computer cases that could never (conjecturing here) satisfy radio emission tests with a running PC inside them, but as they never sell those as systems, it's fine, and then the user ends up building that very system themselves?

Tsiklon 4y ago
Many big name brand prebuild vendors sell plastic or glass sided gaming PCs - Here's one HP example: https://www.hp.com/us-en/shop/pdp/omen-by-hp-45l-gaming-desktop-gt22-0465xt-bundle-pc https://www.hp.com/us-en/shop/pdp/omen-by-hp-45l-gaming-desk...
- _flux 4y ago
  Shows my research ;). But, still, have such glass-walled been tested for ESD/RF, if they are not sold as systems? Or are those transparent parts made of some RF-blocking material? Surely a vendor such as HP would have the paperwork to show that their cases are tested with their motherboards, but a small system builder company (e.g. PC component seller that can also assemble the system) probably would not have done such testing..
wincy 4y ago
My wife had an entirely plastic computer case. They’re definitely a thing.
- kevin_thibedeau 4y ago
  They will have a conductive spray on the inside or an internal shield if they aren't some uncertified Alibaba product.
oakwhiz 4y ago
This is a good point to bring up. I believe that spread spectrum clocking and DC-balanced line coding schemes on differential buses have allowed the rules to be bent somewhat. However there is still an EMC issue present. It would be nice to have a metallized film or plated mesh to reduce the problem caused by glass and plastic. Old equipment used to have copper fingers on all seams and I don't see that as often anymore either.
em-bee 4y ago
i am pretty sure that legally any case that is sold with the intention to build a computer has to comply with emission regulations.

by _flux 4y ago

Tsiklon 4y ago

Many big name brand prebuild vendors sell plastic or glass sided gaming PCs - Here's one HP example: https://www.hp.com/us-en/shop/pdp/omen-by-hp-45l-gaming-desktop-gt22-0465xt-bundle-pc https://www.hp.com/us-en/shop/pdp/omen-by-hp-45l-gaming-desk...

_flux 4y ago
Shows my research ;). But, still, have such glass-walled been tested for ESD/RF, if they are not sold as systems? Or are those transparent parts made of some RF-blocking material? Surely a vendor such as HP would have the paperwork to show that their cases are tested with their motherboards, but a small system builder company (e.g. PC component seller that can also assemble the system) probably would not have done such testing..

wincy 4y ago

My wife had an entirely plastic computer case. They’re definitely a thing.

kevin_thibedeau 4y ago
They will have a conductive spray on the inside or an internal shield if they aren't some uncertified Alibaba product.

oakwhiz 4y ago

This is a good point to bring up. I believe that spread spectrum clocking and DC-balanced line coding schemes on differential buses have allowed the rules to be bent somewhat. However there is still an EMC issue present. It would be nice to have a metallized film or plated mesh to reduce the problem caused by glass and plastic. Old equipment used to have copper fingers on all seams and I don't see that as often anymore either.

em-bee 4y ago

i am pretty sure that legally any case that is sold with the intention to build a computer has to comply with emission regulations.