Go Back   Hardware Canucks > HARDWARE > Power Supplies

    
Closed Thread
 
LinkBack Thread Tools Display Modes
  #11 (permalink)  
Old August 8, 2012, 03:39 AM
taimoorali007's Avatar
Top Prospect
 
Join Date: Dec 2011
Posts: 181

My System Specs

Default

Quote:
Originally Posted by botat29 View Post
I have many computers running from bars without the ground pins and I never encounter a problem. Of course I don't recommend to do so ,but your PC problem are not related to a missing ground.

Hmm...Thnx but still waiting for humid days to pass away :)
  #12 (permalink)  
Old August 8, 2012, 06:02 AM
Rookie
 
Join Date: Apr 2010
Posts: 25
Default

Quote:
Originally Posted by taimoorali007 View Post
Hmm...Thnx but still waiting for humid days to pass away
Wall receptacle safety ground is mostly for protecting humans. It does not earth a surge for many reasons including excessive impedance (ie 'more than 10 feet' long). Ignore all 'not safety grounded' receptacles. Worry about another ground that does the protection - earth ground.

Grounding anything inside a house only makes that appliance a best path to earth. A lightning strike, often far down the street to AC wires, is a direct strike 'incoming' to every appliance. Is every appliance damaged? Of course not. To have electricity means both an incoming AND an outgoing path to earth. Earthing any appliance only makes it an easiest appliance to damage.

Earth the surge; not an appliance. That means every incoming wire (including all three or more AC wires) makes a short connection to earth ground. Either directly (ie cable TV, satellite dish) to earth with a wire. Or via a 'whole house' protector (ie AC electric, telephone). Then a surge is harmlessly earthed BEFORE entering the building. Then a surge need not hunt for earth destructively via appliances.

Protection means hundreds of thousands of joules dissipate harmlessly outside the building. That's how protection is done in any facility that cannot have damage. Worry only about the earth ground that must be short (ie'less than 10 feet') from each utility wire to the one and only earthing electrode. The all so critically important single point earth ground.
  #13 (permalink)  
Old August 8, 2012, 06:46 AM
KaptCrunch's Avatar
Hall Of Fame
 
Join Date: Feb 2008
Location: Ontario
Posts: 2,923
Default

Quote:
Originally Posted by taimoorali007 View Post
Now m worried, could every component get damage due to static, i mean like psu and how to diagnose that is there something bad going on in my pc or everything's fine and arrange for electrician ASAP?
you didn't say where are having this issue of no ground?

usa, UK, europe 120 or 220 vac?

best use 2meter metal rod in earth or ground to metal drian pipe for grounding home
  #14 (permalink)  
Old August 8, 2012, 07:30 AM
taimoorali007's Avatar
Top Prospect
 
Join Date: Dec 2011
Posts: 181

My System Specs

Default

Quote:
Originally Posted by KaptCrunch View Post
you didn't say where are having this issue of no ground?

usa, UK, europe 120 or 220 vac?

best use 2meter metal rod in earth or ground to metal drian pipe for grounding home

M in Pakistan, where Grid A/C is 220V!


If u guyz r thinking that i need earth for my protection, tahts not what i m talking about! I need protection for my PC components and wanna get rid of Static weirds sound for pc component like PSU!

I wanna stop that buzzing cuz m not sure will this damage my PSU or not.

hey! Wait wait, tell me that when i touch my side panel fan screw, buzzing gone from heaphone! Then when i remove my hand, again start buzzin. Whats that?

And is my rig in danger, plz help me. Orelse my pc will r.i.p and i'll never get my rig back again, m not like u guyz. Its n0t spamming m serious!

Last edited by Arinoth; August 9, 2012 at 09:46 AM.
  #15 (permalink)  
Old August 8, 2012, 10:45 AM
Top Prospect
 
Join Date: Mar 2008
Posts: 62
Default

Quote:
Originally Posted by taimoorali007 View Post
hey! Wait wait, tell me that when i touch my side panel fan screw, buzzing gone from heaphone! Then when i remove my hand, again start buzzin. Whats that?

And is my rig in danger, plz help me. Orelse my pc will r.i.p and i'll never get my rig back again, m not like u guyz. Its n0t spamming m serious!
By touching the metal case you are providing a "ground" for the case. Headphones/Speakers can hum because of poor grounding or a lack grounding. So this is a case where yes, a ground will almost certainly fix this issue.
__________________
We are shaped by fate, just as we shape it.
  #16 (permalink)  
Old August 8, 2012, 10:54 AM
Soultribunal's Avatar
Moderator
F@H
 
Join Date: Dec 2008
Location: Mississauga
Posts: 8,063

My System Specs

Default

For his body to ground it out or provide another path means its taking a lot of interference from elsewhere. Probably Really dirty power in the house right now, regardless of the house being grounded out or not.
I would honestly get a good UPS that can clear up the Line Voltage (Buck/Boost) and see if that helps.
If you have so much intereference that touching the metal of your case removes the humming, I wouldn't want to be running that computer.

-ST
__________________




"We know not why he calls for us, only that when he does we must answer" - DMP 2009

"Dear Iceberg, I am sorry to hear about global warming. Karma is a bitch. Signed - Titanic"

I would rather believe and find god doesn't exist than to not believe and find that he does.

www.realhardwarereviews.com
  #17 (permalink)  
Old August 8, 2012, 11:08 AM
taimoorali007's Avatar
Top Prospect
 
Join Date: Dec 2011
Posts: 181

My System Specs

Default

Quote:
Originally Posted by Chareon View Post
By touching the metal case you are providing a "ground" for the case. Headphones/Speakers can hum because of poor grounding or a lack grounding. So this is a case where yes, a ground will almost certainly fix this issue.
should i tie myself with pc again?
What about other component, is there any thing to worry about?
  #18 (permalink)  
Old August 8, 2012, 11:33 AM
Top Prospect
 
Join Date: Mar 2008
Posts: 62
Default

Quote:
Originally Posted by Soultribunal View Post
For his body to ground it out or provide another path means its taking a lot of interference from elsewhere. Probably Really dirty power in the house right now, regardless of the house being grounded out or not.
I would honestly get a good UPS that can clear up the Line Voltage (Buck/Boost) and see if that helps.
If you have so much intereference that touching the metal of your case removes the humming, I wouldn't want to be running that computer.

-ST
A UPS definitely can't hurt, and I honestly can't say what affect it would have on a poor ground when it is ungrounded itself.

It doesn't necessarily have to be dirty power however. It can be pretty technical, as it relates to how/if the system uses the ground for its 0V reference but his article while not specifically aimed at computers looks like it covers all the important bits about why grounding can be such a big deal with audio noise. Grounding and Shielding Audio Devices

taimoorali007 - it's possible that as Soultribunal mentioned you have dirty power coming in. A good UPS will typically correct for that, and dirty power can cause damage to electronics (depending how much it is fluctuating.) Power does vary normally however, and most moderns PSUs are actually pretty good at correcting any small peaks and dips. The (likely) symptom of no ground you are seeing of noise over the headphones is probably not anything extra to be concerned about, other than the lack of a ground in the first place.
__________________
We are shaped by fate, just as we shape it.
  #19 (permalink)  
Old August 8, 2012, 11:46 AM
NyteOwl's Avatar
Allstar
 
Join Date: Aug 2008
Location: Nova Scotia
Posts: 905
Default

The 'buzz" is caused by leakage current. It doesn't take much to produce and a poor ground is the likely cause. If necessary you can ground the computer case to a ground rod or even a cold water pipe (metal not plastic). As stated above however a better option is to rewire if possible.
__________________
Obsolescence is just a lack of imagination.
  #20 (permalink)  
Old August 8, 2012, 11:52 AM
taimoorali007's Avatar
Top Prospect
 
Join Date: Dec 2011
Posts: 181

My System Specs

Default

Quote:
Originally Posted by NyteOwl View Post
The 'buzz" is caused by leakage current. It doesn't take much to produce and a poor ground is the likely cause. If necessary you can ground the computer case to a ground rod or even a cold water pipe (metal not plastic). As stated above however a better option is to rewire if possible.

Will this resolve??? Solution of static and and what if leakage! Humming is louder in headphones than PSU or m paranoid! :S
Closed Thread


Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Best Wine on Earth!!! Soullessone21 Off Topic 0 December 19, 2011 06:51 PM
Earth Hour geokilla Off Topic 10 March 28, 2010 12:52 AM
This Could be BAD for the Earth Surfer_2099 Off Topic 7 November 25, 2009 07:35 PM
Earth Hour geokilla Off Topic 58 March 31, 2009 09:36 AM
scorched earth Krixxer Gaming 8 March 29, 2008 05:46 PM