If you can't find them online, Try an electronics recycling facilty.

I work at one and we get old computers in all the time.

A metal recycling facility might get them too.

Deksor wrote on 2020-03-24, 23:51:

Hi !

I have several i440BX motherboards which all need the same type of I/O shield (2 ps/2 ports on the top, then two usb and finally 2 com and 1 parallel, and sometimes sound), but I haven't been able to find a great source for these even though they're pretty standard.

Does anyone have an idea ?

There was a couple selling those on online. One guy in Netherlands selling really good I/O for reasonable back a few months ago, they worked well with Asus P2B-F and other similar back panel layouts. The other had same with punchable parts for the audio . Will check my purchase history and if either still has any will PM you the link (it will take some time, can't remember if thru ebay or alibay or alibaba 🤣). Here is a pic of the two I have left

Looks for bunldes/lots on ebay. I bought a lot of about 40-50 once and I have usually been able to find something close enough. Individual ones are often quite expensive.

kolderman wrote on 2020-03-25, 01:35:

Looks for bunldes/lots on ebay. I bought a lot of about 40-50 once and I have usually been able to find something close enough. Individual ones are often quite expensive.

And what do you do with the other 40 you do not need ? 🤣 Maybe you have one he could use.

Sorry Deksor neither one has any left. They averaged about $7 each with shipping just for reference...
Well worth it since a good PB2-F goes for about $100

Well given I have bought well over 40 motherboards over the years, most without IO shields, they come in very handy whenever I do a new or refreshed build 😁

@kolderman
The thing is, the ones I need are standard, so any of them should match any motherboard 😁

@Lylat1an
Unfortunately recycling facilites don't let people buy stuff from them here unfortunately, if they did, I'd be right there to buy retro stuff from them x)

http://io-shield.de/en/io-shields

There was a fantastic thread on VOGONS with 3d models for most common retro atx io shields, if you can locate that you can download the model from that and have it printed on grey plastic.

The ports must be grounded - that is, connected to the casing via the i/o shield. I would not use a 3d-printed one as anything else than a temporary solution. With the ports not being grounded, there's a high risk to cause damage whenever you plug in or unplug a device. So better do it right from the outset and get a proper i/o shield.

Thanks, but unfortunately I haven't found what I'm looking for there ...
What I need is what @Horun pictured.

derSammler wrote on 2020-03-25, 13:22:

The ports must be grounded - that is, connected to the casing via the i/o shield. I would not use a 3d-printed one as anything else than a temporary solution. With the ports not being grounded, there's a high risk to cause damage whenever you plug in or unplug a device. So better do it right from the outset and get a proper i/o shield.

If you use metal standoffs and screw to mount the motherboard, the ports are already grounded.

Just sayin'...

derSammler wrote on 2020-03-25, 13:22:

The ports must be grounded - that is, connected to the casing via the i/o shield. I would not use a 3d-printed one as anything else than a temporary solution. With the ports not being grounded, there's a high risk to cause damage whenever you plug in or unplug a device. So better do it right from the outset and get a proper i/o shield.

The ports are grounded to the PCB ground which is grounded to the chassis, the extra grounding from the io shield is redundant to the max.

That's not the same, because you have no shielding to discharge any electric charge between the PC and the device you plug in when using a plastic i/o shield.

But just as with ESD, people tend not to listen. It's just a word of warning. You are free to use a 3d-printed i/o shield if you don't care.

I feel I should point out there are no standard IO shields - ATX only requires they fit within the rectangle somewhere? Even ones that look very, very similar can be different by a few millimeters...and it makes them as incompatible as any others. I have learned this the hard way, even with two mobos by the same manufacturer (but different models).

You either one for the exact model, or plenty to try until you hit a match.

i never heard such bullshit,
the ports all grounded, even without io shield.
The only sense it has is EMV Shielding.

i have a lot of Shields for BX440 boards..
if you live in EU i can send some..

Well back into the pentium 2 era, they all matched (I have many of these boards and few I/o shields and they all match

derSammler wrote on 2020-03-25, 17:41:

That's not the same, because you have no shielding to discharge any electric charge between the PC and the device you plug in when using a plastic i/o shield.

But just as with ESD, people tend not to listen. It's just a word of warning. You are free to use a 3d-printed i/o shield if you don't care.

Sammler, as long as the ports themselves are connected to the PCB ground plane (which they are) there is no reason for extra grounding through the IO plate. What you say does not make sense electrically..

matze79 wrote on 2020-03-25, 18:32:

if you live in EU i can send some..

Same here, if the EU (or Britain) is your turf, I can also help out.

matze79 wrote on 2020-03-25, 18:32:

i never heard such bullshit, the ports all grounded, even without io shield. The only sense it has is EMV Shielding. […]
Show full quote

i never heard such bullshit,
the ports all grounded, even without io shield.
The only sense it has is EMV Shielding.

i have a lot of Shields for BX440 boards..
if you live in EU i can send some..

flupke11 wrote on 2020-03-25, 21:39:

Same here, if the EU (or Britain) is your turf, I can also help out.

Agree matze79 ! they are metal mostly for RF and EMF shielding. The metal around each backpanel part are soldered to ground on every board I have seen.
You guys are great ! Deksor I would send you one of mine but live in USA and they currently charge a butt load to mail anything (including a letter) to Europe. Stupid USPS !