Forum Home
Press F1
Thread ID: 48460	2004-08-23 21:35:00	Beware if you notice this	Spacemannz (808)	Press F1

Post ID	Timestamp	Content	User
264766	2004-08-23 21:35:00	Hey again all. Just thought I'll share this you. If you notice (if you brush your arm, on your case), and you fell power going thru the case. TURN the system off. And get a "sparky" to replace the power point your system is plugged into. Just over a month ago now, I experienced this "odd behaviour". It took me about a month to figure out why my system was randomly booting/crashing, when previously, there were no problems at all. (This is using XP). It was getting to the point, that I was ready to chuck this thing in the bin! Because of the constant crashing. So, I got the mobo, the ram, the cd writer, and the hard drive replaced (under warranty), to see if that would fix the crashing. And it didn't. So, in the end I decided to get in touch with Intel. And removed the CPU packaged it, and then sent it by courier back to Malaysia (Intel Malaysia). It took about 2 weeks to come back. Luckily, I had a spare CPU in the bedroom. As soon as the replacement CPU came back from Malaysia, everything has been fine since. What (I think) had happened was when the case became "active" due to the faulty power point (it was leaking power), it did more damage to the CPU than anything else (It also leaked power thru the videocard, when you plugged the monitor cable into the videocard at the back). And since it's connected to the motherboard, it would have fried 1/2 the CPU (It would have been like a power surge, altho XP still booted). That was why the system was constantly crashing. So, if you experience this same behaviour, DON'T turn the system on again, without first getting the power point fixed by an electrician. Later	Spacemannz (808)
264767	2004-08-24 07:11:00	. If > you notice (if you brush your arm, on your case), and > you fell power going thru the case . You should NEVER get that feeling off any appliance, My Mother told me she was getting a slight tingle off the kettle, when I unscrewed the plug found the earth wire had broken off . (Because I am registered with the Electrical Workers Registration Board) If you put up with that feeling on any appliance it could led to your DEATH !!!	Earnie Moore (5918)
264768	2004-08-24 07:35:00	Well I know that. Maybe it was the surge protector on this powerboard that lowered the voltage when it made the case active...	Spacemannz (808)
264769	2004-08-24 07:47:00	> . If > > you notice (if you brush your arm, on your case), > and > > you fell power going thru the case . > > You should NEVER get that feeling off any appliance, > My Mother told me she was getting a slight tingle off > the kettle, when I unscrewed the plug found the earth > wire had broken off . (Because I am registered with > the Electrical Workers Registration Board) > God forbid have to pay a sparky to change a plug . I rewired my house without any problems whatsoever Earnie, and everything turns off and on OK, without ever blowing a fuse	Baldy (26)
264770	2004-08-24 09:31:00	Good thing i didnt pay the sparky then lol since I flat. The landlord had to pay.	Spacemannz (808)
264771	2004-08-24 09:55:00	Sounds like the CPU was the problem, not the faulty earth . Not to minimise in any way the risk of using any electrical appliance that gives you a tingle, but because computers use a power supply system that isolates the input from the output, the absence of an earth simply raises any exposed metal on the case to a voltage determined by the impedance of the sum of the filter capacitors connected between the phase side of the input filter and earth, plus stray capacitance effects . It is usually around 100-120 volts on a high impedance meter, but it can't supply enough current to hurt you . That is not to underrate the danger either, because if one of those caps breaks down, the outer case becomes live at mains voltage and then you are really in for a surprise . However, all of that is very unlikely to cause any problems at all for the internals of your computer because that is all supplied by DC fed from the isolated outputs of the power supply . Issues could arise through connections to external devices that are earthed, but they are few and far between in this plastic world . And especially for Baldy: the greatest risk from home-owner wiring is not the blowing of fuses, it is overheating from excessive load on under-rated cables, phase-neutral reversals, absence of proper earths and loose connections . Everything seems to work Ok, and they can stay that way for years until one day the mother-in-law drops dead on the floor when she plugs the wrong appliance into the wrong outlet in the wrong room . Cheers Billy 8-{)	Billy T (70)
264772	2004-08-24 10:12:00	Well it was the CPU due to the leaking power . . . It was OK before then Would you survive if you were getting shocked inside a case for a month lol . Even at the shop where I brought it, it ran 3 hrs + without rebooting . On this power point, it didnt or couldnt handle an hour without rebooting constantly . Even when I turned it on first thing in the morning it keeled over .	Spacemannz (808)
264773	2004-08-24 10:34:00	Try getting your fingers into a switched mode power supply 450w. Ouch.	mr_rix (5375)
264774	2004-08-24 14:01:00	>phase-neutral reversals, Why they ever change to the universal colours for the wires I will never know because to me red, black and green were very logical whereas brown, blue an green/yellow are not. Its like NZ Post using blue for fast post and red for standard. It ended up causing endless trouble.	mikebartnz (21)
264775	2004-08-24 19:19:00	> Everything seems to work Ok, and they can stay that > way for years until one day the mother-in-law drops > dead on the floor when she plugs the wrong appliance > into the wrong outlet in the wrong room. > > Cheers > > Billy 8-{) Hopefully Mrs T won't read that you would cheer gleefully when your MIL drops dead Billy.	Baldy (26)
1 2 3 4