Probably the dumbest question asked in a long time.

de8212

Diamond Member
Jan 2, 2000
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The little metal pieces on them that bend back in towards the mobo. Why do they exist? I know there's a reasonable answer. I normaslly just end up breaking them off because all the holes line up for the mobo but they don't let the ports on the back rest flush against the plate.

Do most of you just break them off or what?
 

ShawnD1

Lifer
May 24, 2003
15,987
2
81
Originally posted by: de8212
The little metal pieces on them that bend back in towards the mobo. Why do they exist? I know there's a reasonable answer. I normaslly just end up breaking them off because all the holes line up for the mobo but they don't let the ports on the back rest flush against the plate.

Do most of you just break them off or what?

My Mexican connection down in California says they're to keep cockroaches/bugs out. That sounds almost reasonable because I remember one time I shorted out my video card when I was poking at it with a pencil while the computer was running (there was some crud on it).
It would seem possible that a bug crawling on the motherboard could short it out and cause the system to crash.

edit: of course it doesn't actually make a difference when I leave big gaping holes on the front of the computer. You know those plastic things covering the 5 inch drive bays? I just take those off and leave them off; I could probably fit a full size seagull in there.
 

bendixG15

Diamond Member
Mar 9, 2001
3,483
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Those little metal thingies are grounding thingies.

Obviousky not need because lotsa computers are run without the back plate not installed and no problems have been reported. Another good idea that went south.

(Now 15 guys are going to post their problems to prove me wrong :eek: )
 

ShawnD1

Lifer
May 24, 2003
15,987
2
81
Originally posted by: bendixG15
Those little metal thingies are grounding thingies.

Obviousky not need because lotsa computers are run without the back plate not installed and no problems have been reported. Another good idea that went south.

(Now 15 guys are going to post their problems to prove me wrong :eek: )

Come to think of it, they probably are a good idea. Back in 1998 or so, the fun thing to do at school was to shuffle your feet (with no shoes) on the carpet in the computer lab then put your finger in the modem. It would spark and the computer would crash. Hours of fun and games on a PowerPC :D. The lesson is that static from somewhere, in a high enough amount, can crash the computer.

Not sure a metal plate would stop abuse, but the general idea is the same. With that plate, there is a direct connection from the ports to the metal case, which is probably grounded (the cord for the computer power has 3 prongs, so something is clearly grounded somewhere).

The 32x addon for the Sega Genesis also came with metal shields, and the explanation was something retarded about static. It didn't make any sense, though, since it wasn't really shielding against anything. The Genesis and 32x are already in direct metal contact with each other, so where is this static buildup supposed to happen?. That, and the shields were not not grounded, which eliminates the whole point of having shields (non-grounded metal can be charged by induction).
 

balane

Senior member
Dec 15, 2006
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Keep the panel snug and under pressure so the don't vibrate and buzz.
 

herm0016

Diamond Member
Feb 26, 2005
8,516
1,128
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because your computer is built to be a Faraday cage to keep out electromagnetic interference, and to keep the interference from the stuff inside inside the case.
 

Zepper

Elite Member
May 1, 2001
18,998
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Some ports have parts that protrude thru the shield and others, like USB, FW and network ports don't. The metal parts of those ports (and others too) press up against those fingers to complete the EMI/RFI shielding. Alighned properly, the mobo shouldn't be flush against the I/O shield plate anyway.

.bh.