Grounding CPU's metal case?

[poldopunk]

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allow me to explain what is static electricity...

metal objects suspended or does not have a conductor that connects them to the ground tend to build electricity...this is what you call static electricity - electricity looks for a way to negate itself which is the ground (literally: YUTA). which is the reason ngano mamaak imong chassis.

now if you touch it, since we humans have bones (which conduct electricity by the way), we become the path of the built-up electricity from the chassis to the ground. if you a add a conductor attached from the chassis, to the ground, that charge is constantly discharged preventing you from being shocked.



in addition: if you wear slippers or anything non-conductor which is keeping you from touching the ground while touching the case, you'll be surprised dili siya mamaak. hehehe

[COMCAM]

composed of atoms bya ang tao, hehehe

[Bordzz]

aw mao ba ana diay na hehehhee...

[AMD_infinium05]

whew:

STATIC (electricity):
Static electricity refers to the accumulation of excess electric charge in a region with poor electrical conductivity (an insulator), such that the charge accumulation persists. The effects of static electricity are familiar to most people because we can see, feel and even hear the spark as the excess charge is neutralized when brought close to a large electrical conductor (for example a path to ground), or a region with an excess charge of the opposite polarity (positive or negative).

GROUND (electricity)
In electrical engineering, the term ground or earth has several meanings depending on the specific application areas. Ground is the reference point in an electrical circuit from which other voltages are measured, a common return path for electric current (earth return or ground return), or a direct physical connection to the Earth.
Fig. 1: A typical earthing electrode (left of gray conduit) at a home in Australia. Note the green and yellow marked earth wire.
Fig. 1: A typical earthing electrode (left of gray conduit) at a home in Australia. Note the green and yellow marked earth wire.

Electrical circuits may be connected to ground (earth) for several reasons. In power circuits, a connection to ground is done for safety purposes to protect people from the effects of faulty insulation on electrically powered equipment. A connection to ground helps limit the voltage built up between power circuits and the earth, protecting circuit insulation from damage due to excessive voltage. Connections to ground may be used to limit the build-up of static electricity when handling flammable products or when repairing electronic devices. In some types of telegraph and power transmission circuits, the earth itself can be used as one conductor of the circuit, saving the cost of installing a separate run of wire as a return conductor. For measurement purposes, the Earth serves as a (reasonably) constant potential reference against which other potentials can be measured. An electrical ground system should have an appropriate current-carrying capability in order to serve as an adequate zero-voltage reference level.

The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in vehicles such as ships, aircraft, and spacecraft may be spoken of having a "ground" connection without any actual connection to the Earth.

Wikipedia as reference,

@poldopunk: ang kanang ingon nnyo nga mamaak sa cpu ig hikap kay nagtiniil mo, its not static electricity.

@nammies: I dont see your point. I just laughed when someone wrote down to allow the cpu ungrounded to electrocute 'hulmigas'. i dont know what you objected.

[Bordzz]

allow me to explain what is static electricity...

metal objects suspended or does not have a conductor that connects them to the ground tend to build electricity...this is what you call static electricity - electricity looks for a way to negate itself which is the ground (literally: YUTA). which is the reason ngano mamaak imong chassis.

now if you touch it, since we humans have bones (which conduct electricity by the way), we become the path of the built-up electricity from the chassis to the ground. if you a add a conductor attached from the chassis, to the ground, that charge is constantly discharged preventing you from being shocked.



in addition: if you wear slippers or anything non-conductor which is keeping you from touching the ground while touching the case, you'll be surprised dili siya mamaak. hehehe

mo comment unta ko pro di na lng, di man ko boy-S gud. A bit of knowledge could kill you know...

[harvz86]

i think normal ra man ang mo ground kay nag agi gud na og kuryente, if di ka gnahan mamaak imo pc, dili ang imo pc maoy i ground but ang outlet from where the pc is plugged.

[poldopunk]

whew:
@poldopunk: ang kanang ingon nnyo nga mamaak sa cpu ig hikap kay nagtiniil mo, its not static electricity.

i know, gi simplify nalang nako kay taas kaayo ug explanation. we get lots of static electricity at work. if i stay too long in my workstation not touching any metal objects and then all of a sudden mohikap ko ug metallic object or a colleague, naa'y sudden shock (static electricity).

probably because, naka carpet ang floor tapos dali ra mo build ang static electricity.

[raigo250]

this is ESD(electrostatic discharge)...