Lesson learned today. Don't use old power supplies. Earlier this evening I was
finishing setting up my server rack when I reached to the back of the one machine and touched it (I was trying to check the fan for airflow) and it shocked me. It was an old power supply I was using so I will need to check if
it is the power supply that socked me by testing it tomorrow with a volt meter
or whatever you call the thing that measures volts or wattage (I don't knowthe
difference).
Lesson learned (old things like harddrives can be kept; but never trust the heart of a machine (the real heart - the power supply).
it shocked me. It was an old power supply I was using so I will need to check if it is the power supply that socked me by testing it tomorrow with a volt meter or whatever you call the thing that measures volts or wattage (I don't know the difference).
Lesson learned (old things like harddrives can be kept; but never trust the heart of a machine (the real heart - the power supply).
Lesson learned today. Don't use old power supplies. Earlier this evening I was
finishing setting up my server rack when I reached to the back of the one machine and touched it (I was trying to check the fan for airflow) and it shocked me. It was an old power supply I was using so I will need to check if
it is the power supply that socked me by testing it tomorrow with a volt meter
or whatever you call the thing that measures volts or wattage (I don't knowthe
difference).
Lesson learned (old things like harddrives can be kept; but never trust the heart of a machine (the real heart - the power supply).
+----+----+----+----+----+----+----+----+----+----+
Tristan B. Kildaire (deavmi@kk4qbn.synchro.net)
Always study.
+----+----+----+----+----+----+----+----+----+----+
I realised that it is not the powersupply but that the motherboard is likely touching the case as it still shocks me even after replacing the old PSU with a new one.
Re: When your power supply shocks you
By: Deavmi to All on Fri Mar 31 2017 11:55 am
wow holy crap. dont you have standoffs
---
Γûá Synchronet Γûá ::: BBSES.info - free BBS services :::
Yes but I think I fucked up, so much so that those (the stand offs) might have become redundant.
Re: When your power supply shocks you
By: Deavmi to Mro on Sat Apr 01 2017 05:37 pm
how? they are only like a half inch of plastic.. do you have stripped wires, solder, or other components touching the case?
--
Tim Smith (KK4QBN)
KK4QBN BBS
I think that it is more of a case (no pun intended) of the case touching the motherboard. I used to use the side panel as a monitor stand whilst it was on a camp chair and it probably bent it into a shape that caves inwards and touches the board.
I don't know but ever since I switched cases I have been fine.
Re: When your power supply shocks you
By: Deavmi to KK4QBN on Sun Apr 02 2017 01:54 pm
ah, ok.. I was about to say you could go redneck on it and beat the shit out of it until it was "right" again :-)
--
Tim Smith (KK4QBN)
KK4QBN BBS
Re: When your power supply shocks you
By: Deavmi to Mro on Sat Apr 01 2017 05:37 pm
Yes but I think I fucked up, so much so that those (the stand offs) might have become redundant.
how? they are only like a half inch of plastic.. do you have stripped wires, solder, or other components touching the case?
I think that it is more of a case (no pun intended) of the case touching the motherboard. I used to use the side panel as a monitor stand whilst it was on a camp chair and it probably bent it into a shape that caves inwards and touches the board.
plastic standoffs? shit, i have all metal ones
Re: When your power supply shocks you
By: KK4QBN to Deavmi on Sun Apr 02 2017 10:14 am
plastic standoffs? shit, i have all metal ones
---
Γûá Synchronet Γûá ::: BBSES.info - free BBS services :::
Re: When your power supply shocks you
By: Deavmi to KK4QBN on Sun Apr 02 2017 01:54 pm
WTF
so the side pannel looks like it was hit with a cannon ball and it is actually touching the motherboard?
---
Γûá Synchronet Γûá ::: BBSES.info - free BBS services :::
Re: When your power supply shocks you
By: Mro to KK4QBN on Sun Apr 02 2017 05:24 pm
Would'nt that defeat the purpose of trying not to have your case in the circuit? I presume it would help if it created a common ground, but I've always thought it best to float a board on plastic, especially in rc setting.
--
Tim Smith (KK4QBN)
KK4QBN BBS
Re: When your power supply shocks you
By: Mro to KK4QBN on Sun Apr 02 2017 05:24 pm
plastic standoffs? shit, i have all metal ones
Would'nt that defeat the purpose of trying not to have your case in the circuit? I presume it would help if it created a common ground, but I've always thought it best to float a board on plastic, especially in rc setting.
I don't think electricity flows through the parts of the board where the stand offs attach to the screws on the motherboard.
stand offs attach to the screws on the motherboard.
as far as i know, all mobo standoffs are metal. you shouldnt have juice coursing through your board in such a way that contact causes shockies. coursing through your board in such a way that contact causes shockies.
Re: When your power supply shocks you
By: KK4QBN to Mro on Sun Apr 02 2017 10:36 pm
Re: When your power supply shocks you
By: Mro to KK4QBN on Sun Apr 02 2017 05:24 pm
plastic standoffs? shit, i have all metal ones
Would'nt that defeat the purpose of trying not to have your case in the circuit? I presume it would help if it created a common ground, but I've always thought it best to float a board on plastic, especially in rc setting.
as far as i know, all mobo standoffs are metal. you shouldnt have juice coursing through your board in such a way that contact causes shockies.
Re: When your power supply shocks youe
By: Deavmi to KK4QBN on Mon Apr 03 2017 10:43 am
I don't think electricity flows through the parts of the board where th
stand offs attach to the screws on the motherboard.
stand offs attach to the screws on the motherboard.
It will if a positive trace is scrached close to the standoff.. trust me, I know from experience. I toasted a fairly expensive flight controller becausea
small scratch on a board, using metal standoffs.
flat let the magic smoke out.
--
Tim Smith (KK4QBN)
KK4QBN BBS
Re: When your power supply shocks you
By: Mro to KK4QBN on Mon Apr 03 2017 05:05 pm
beas far as i know, all mobo standoffs are metal. you shouldnt have juice coursing through your board in such a way that contact causes shockies. coursing through your board in such a way that contact causes shockies.
see previous message to Deavmi, thats why i use plastic.. which it shouldnt
that bad with PC motherboards, but the reason we use plastic standoffs for boards on RC is:
(1) a bit of shock abosorbtion
(2) rc crashes scratches, etc can be made on a positive trace
(3) stray wires that fall off during flight could complete a circuit
--
Tim Smith (KK4QBN)
KK4QBN BBS
as far as i know, all mobo standoffs are metal. you shouldnt have juice coursing through your board in such a way that contact causes shockies.
Re: When your power supply shocks you
By: KK4QBN to Mro on Sun Apr 02 2017 10:36 pm
Re: When your power supply shocks you
By: Mro to KK4QBN on Sun Apr 02 2017 05:24 pm
plastic standoffs? shit, i have all metal ones
Would'nt that defeat the purpose of trying not to have your case in the circuit? I presume it would help if it created a common ground, but I've always thought it best to float a board on plastic, especially in rc setting.
as far as i know, all mobo standoffs are metal. you shouldnt have juice coursing through your board in such a way that contact causes shockies.
Juice? Like liquid? Grease? What are you referring to?
Ah. SO does that mean there is current going threough the standoffs but you can complete the ciruit if the stand off loops back into a negative terminal (and therefore this also touches my side panel; it shocks me?
Re: When your power supply shocks youter
By: Mro to KK4QBN on Mon Apr 03 2017 05:05 pm
as far as i know, all mobo standoffs are metal. you shouldnt have juice coursing through your board in such a way that contact causes shockies.
This has also been my experience. The case should be grounded, and the mobo standoffs are always on the common board ground as well. A voltmeter/multime
should be able to test all this for you.
Re: When your power supply shocks youe
By: Deavmi to Mro on Tue Apr 04 2017 12:50 pm
Juice? Like liquid? Grease? What are you referring to?
juice.. power.. electricity. ye olde watts.. that stuff that helps create th
magic smoke.
--
Tim Smith (KK4QBN)
KK4QBN BBS
Re: When your power supply shocks youth
By: Deavmi to KK4QBN on Tue Apr 04 2017 12:53 pm
Ah. SO does that mean there is current going threough the standoffs but you can complete the ciruit if the stand off loops back into a negative terminal (and therefore this also touches my side panel; it shocks me?
Really anythings possible, have you ever attempted stripping a phone line wi
your teeth when the phone decides to ring? that sucks..
I have completed (or shorted) however one wants to call it, a circuit on oneof
my flight controller boards onto a metal frame using metal standoffs on a gps
module. did'nt really shock me, but it finally let the magic smoke out.
--
Tim Smith (KK4QBN)
KK4QBN BBS
Stripping a phone line with your teeth. Lol. Ever tried burning the end of the cable with a match or lighter and then use tissue paper or better - paper towels - and then place it and rip it off (the burnt part of the cable).
Re: When your power supply shocks you
By: Deavmi to KK4QBN on Wed Apr 05 2017 10:49 am
lol, I do it with my bare thumb and finger, they are already blisterd and callused <sp> so badly that it does'nt even bother me no more.. I've been known to grab a soldering iron up wrong at times too and sit there and look at it while its sizzling my finger and wonder why the hell its doing that.. haha.. now that effing hurts "after the fact of course".
--
Tim Smith (KK4QBN)
KK4QBN BBS
lol, I do it with my bare thumb and finger, they are already blisterd and callused <sp> so badly that it does'nt even bother me no more.. I've been known
to grab a soldering iron up wrong at times too and sit there and look at it while its sizzling my finger and wonder why the hell its doing that.. haha.. now that effing hurts "after the fact of course".
Re: When your power supply shocks you
By: KK4QBN to Deavmi on Wed Apr 05 2017 09:31 pm
own
Oooooowwwww! I uaed to use a sodering iron when I was a kid, amd I've burned my hand a couple of times with it by picking up the iron the wrong way. I've gotten blisters from it, and it hurts like nobody's business!
I used to work as a technician assistant for an organ and keyboard repair shop, and we were at this one church where the technician was working on this one organ, picked up the sodering iron by the wrong end, got burnt, only reacted wirh a hissing sound. I believe it was a minister or someone watching over the building made a conment, "Man, I'd be cussing by now,"
Huh, I wonder why I became a software developer. :)
-jag
Code it, script it, automate it!
I used to work as a technician assistant for an organ and keyboard repair shop, and we were at this one church where the technician was working on this one organ, picked up the sodering iron by the wrong end, got burnt, only reacted wirh a hissing sound. I believe it was a minister or someone watching over the building made a conment, "Man, I'd be cussing by now,"
| Sysop: | Eric Oulashin |
|---|---|
| Location: | Beaverton, Oregon, USA |
| Users: | 103 |
| Nodes: | 16 (0 / 16) |
| Uptime: | 00:35:27 |
| Calls: | 3,527 |
| Calls today: | 9 |
| Files: | 8,461 |
| Messages: | 338,118 |
| Posted today: | 8 |