Older home? Believe it or not; the center pin on the outlet is just another connection for the cold side of the AC. The cold side is connected to the metal shielding in some electronic devices. That is why there is a notch on the non three-prong plugs, to prevent you from putting it in the wrong way... Somewhere along the line someone wired this backwards? One of the outlets needs to be pulled, and the wires switched around. My guess is who ever does it will uncover a electrical nightmare.
We had something like this happen at my church. Turns out, we had 120V on the ground bar of the outlet. What was happening with us is the 120V in the metal chassis was shorting to a good ground on another outlet that the monitor was on.
Again like everyone else here has said your wiring or your power supply are bad. Check your wiring again and try it. Make sure you installed your video card correctly as well. Later!
Hello, the reason this happened is because your power lead is not plugged in, as strange as that sounds you have just got to trust me. The PC is "grounded" via the wall socket, therefore without it been plugged in it is basically a live case, not good.
Had this happen too What it was there was 24 volts comeing back off my homes electrical system threw the main ground spike in the house. The cable company had attached a grounding cableing directly to the main ground spike fro their cable soo the electricity went back into my cable line instead of being grounded. When I hooked any 3 prong outlet to my tv I got a zing This has damaged 2 tv sets because of the dumb cable company never tested the ground before instalation. I should sue them.
if i was you i would try with only the basics (no monitor, just a power lead and a long thin button pressing stick lol)
if it works your mains may be ok in one socket, if ur monitor has not done that before (aka it usually is ok, then put a surge protector between the end of the power lead and the socket on the monitor)
if that doesnt help seek electrical health & safety advice immediatley incase it spreads to household power danger. (aka somthing blows)
What appears to be happening is that the safety ground of your house is at a different potential than your cable's shield. The computer monitor's shield is connected to the safety ground, so when you do that, it arcs. There are a number of possible causes for this. A faulty device could be connecting ac power to the ground line. Another possibility is that your outlet is wired incorrectly; the hot may be connected to your safety ground. You may need to call an electrician.
your hardware is fucked up!... Maybe you should stand in a puddle of water while reconnecting that, since you posted this under mythtv and it has absolutely nothing to do with it.
all of these comment DO make good sense. BUT. think torawrds monitor cable. monitor, high powered/voltage. it COULD be the cable wire, but it may also be the monitor. and the case is probly getting a ground connection from the outside RF ground shield on the cable input. get a screwdriver, and touch the base of the connector to it, and get CLOSE TO but do NOT TOUCH the RF wire. it may arc. if not, check the VGA cor. your monitors backlight charges might be laeking into the connector.
The first thing I notice is that the Coax is plugged into the PC, but the power cable is not. Therefore, the PC itself is not grounded (which is accomplished through the power cable). Definitely scary, and I'd want to make sure my cable coax is properly grounded before moving forward. Obviously nothing to do with "open source", which is software. This is a hardware problem (in the coax ground).
I'm about to build a MythTV box and I am glad I saw this - because I feel confident that my wiring is grounded well, but I think I'll plug the cable up LAST. This dude definitely should have an electrician look at that problem!
Obviously a ground fault. Either the monitor or the computer box should have blown the mains fuse if properly grounded through the 3 pin wall plug. Also, the Cable going to the tuner should be grounded at the entrance to the house, whether it is cable tv or antenna. One of the devices or the cable from antenna is live with respect to ground due to a dangerous fault, and the wall outlet is not properly grounded, someone cut off a ground pin or a mix of the above. Jim
Older home? Believe it or not; the center pin on the outlet is just another connection for the cold side of the AC. The cold side is connected to the metal shielding in some electronic devices. That is why there is a notch on the non three-prong plugs, to prevent you from putting it in the wrong way... Somewhere along the line someone wired this backwards? One of the outlets needs to be pulled, and the wires switched around. My guess is who ever does it will uncover a electrical nightmare.
quazar11 4 months ago
Ugh! I'm glad my home-built Windows server didn't do that :)
ThePhoneUpdate 11 months ago
perfect example of people building computers not understanding *ground*
sabutai11 1 year ago
That thing isn't even plugged in from the AC.
MultiYippee 1 year ago
Did you give it the tongue test?
kamaboko1 1 year ago
that scared the crap out of me, i dont know y. i jumped
stydel311 1 year ago
We had something like this happen at my church. Turns out, we had 120V on the ground bar of the outlet. What was happening with us is the 120V in the metal chassis was shorting to a good ground on another outlet that the monitor was on.
borglanparty 1 year ago
"let's see if we can duplicate it" chuckle ....
rntonp 2 years ago
Again like everyone else here has said your wiring or your power supply are bad. Check your wiring again and try it. Make sure you installed your video card correctly as well. Later!
salvadordemi 2 years ago
hahaha great wireing
Hamburlgar 3 years ago
hahaha great seplling
venik4 3 years ago 6
WTF lol thats gonna hurt
Hiramthedude 3 years ago
And this is MythTV's fault why?? You built the PC, you probably caused the problem. Check the power supply...
incrediblebob 3 years ago 3
someone needs to learn how to install a powersupply properly. its not myths fault.
brpadington 3 years ago 3
fuck that...
LostProphet1776 3 years ago 2
Hello, the reason this happened is because your power lead is not plugged in, as strange as that sounds you have just got to trust me. The PC is "grounded" via the wall socket, therefore without it been plugged in it is basically a live case, not good.
ParaHelix 3 years ago 2
Had this happen too What it was there was 24 volts comeing back off my homes electrical system threw the main ground spike in the house. The cable company had attached a grounding cableing directly to the main ground spike fro their cable soo the electricity went back into my cable line instead of being grounded. When I hooked any 3 prong outlet to my tv I got a zing This has damaged 2 tv sets because of the dumb cable company never tested the ground before instalation. I should sue them.
ravengreymoon 3 years ago
who threw a spike into your house? Sounds like a bad neighbourhood
xroni 2 years ago
I had the same thing happen when I tried to connect the cable to the TV card.
cj1510 3 years ago
if i was you i would try with only the basics (no monitor, just a power lead and a long thin button pressing stick lol)
if it works your mains may be ok in one socket, if ur monitor has not done that before (aka it usually is ok, then put a surge protector between the end of the power lead and the socket on the monitor)
if that doesnt help seek electrical health & safety advice immediatley incase it spreads to household power danger. (aka somthing blows)
supermorph 3 years ago
Dude plug in your power supply and put a ground on that thing.
you should never play with a pc without an earthground.
jrmandy 3 years ago 3
What appears to be happening is that the safety ground of your house is at a different potential than your cable's shield. The computer monitor's shield is connected to the safety ground, so when you do that, it arcs. There are a number of possible causes for this. A faulty device could be connecting ac power to the ground line. Another possibility is that your outlet is wired incorrectly; the hot may be connected to your safety ground. You may need to call an electrician.
sfx1999 4 years ago
your hardware is fucked up!... Maybe you should stand in a puddle of water while reconnecting that, since you posted this under mythtv and it has absolutely nothing to do with it.
qkiller 4 years ago 11
all of these comment DO make good sense. BUT. think torawrds monitor cable. monitor, high powered/voltage. it COULD be the cable wire, but it may also be the monitor. and the case is probly getting a ground connection from the outside RF ground shield on the cable input. get a screwdriver, and touch the base of the connector to it, and get CLOSE TO but do NOT TOUCH the RF wire. it may arc. if not, check the VGA cor. your monitors backlight charges might be laeking into the connector.
DJDigitalMonster 4 years ago
wow... good eye
I'd totally check out your monitor... and stuff
so what's happened with it so far? you made this back @ the start of the year
PDG1 4 years ago
The first thing I notice is that the Coax is plugged into the PC, but the power cable is not. Therefore, the PC itself is not grounded (which is accomplished through the power cable). Definitely scary, and I'd want to make sure my cable coax is properly grounded before moving forward. Obviously nothing to do with "open source", which is software. This is a hardware problem (in the coax ground).
dapictures 4 years ago
Wow, I knew open source was bad, but Shockingly bad?
...
Just kidding ;)
that is really freaky, though.
guyvf 4 years ago
I'm about to build a MythTV box and I am glad I saw this - because I feel confident that my wiring is grounded well, but I think I'll plug the cable up LAST. This dude definitely should have an electrician look at that problem!
cgiddens 4 years ago
Obviously a ground fault. Either the monitor or the computer box should have blown the mains fuse if properly grounded through the 3 pin wall plug. Also, the Cable going to the tuner should be grounded at the entrance to the house, whether it is cable tv or antenna. One of the devices or the cable from antenna is live with respect to ground due to a dangerous fault, and the wall outlet is not properly grounded, someone cut off a ground pin or a mix of the above. Jim
nerdful1 5 years ago
Woh! That's not good. I also had something like that happen to me,but with my Cable modem.
GrinsMahler 5 years ago