Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Foo Off-Topic chit chat with no general subject.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-12-07, 03:05 PM   #1
Ziemas
Senior Member
Thread Starter
 
Ziemas's Avatar
 
Join Date: Nov 2004
Location: Riga, Latvia
Bikes:
Posts: 10,082
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Computer Hardware Question - Is It Possible To Fry Both A Power Supply And RAM?

Someone is trying to hustle me and a friend of mine for the cost of a new power supply and RAM, saying that one of us (or someone we know) fried both by accidentally turning off and then on the light switch which the computer was connected to off.

Needless to say, I'm not paying out, but I wonder, is it possible to fry both the power supply and the RAM on a computer by disrupting power and not have the motherboard or CPU effected? Or for that matter can one kill the power supply and RAM by disrupting power?

Thanks.
Ziemas is offline   Reply With Quote
Old 12-12-07, 03:07 PM   #2
TexasGuy
That darn Yankee
 
TexasGuy's Avatar
 
Join Date: Jun 2005
Location: West West Fort Worth
Bikes: Mongoose XR-100, Eros Bianchi
Posts: 4,286
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I call bull****.
__________________
Life is about hanging onto what you think is important and finding out what really is important.
"Stop Ruining my joke!", "No, a joke implies humor attached at no additional cost"
So many sayings, so little sig space.
TexasGuy is offline   Reply With Quote
Old 12-12-07, 03:07 PM   #3
Tom Stormcrowe
Out fishing with Annie on his lap, a cigar in one hand and a ginger ale in the other, watching the sunset.
 
Tom Stormcrowe's Avatar
 
Join Date: Mar 2006
Location: South Florida
Bikes: Techna Wheelchair and a Sun EZ 3 Recumbent Trike
Posts: 16,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yep, it sure is. If there is an arc in the switch, then you can get a surge that could theoretically fry the motherboard as well. Any component can fry with a surge. Latvia runs 220V European 50cycle. right?
__________________
. “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

"We can judge the heart of a man by his treatment of animals." - Immanuel Kant
Tom Stormcrowe is offline   Reply With Quote
Old 12-12-07, 03:09 PM   #4
Ziemas
Senior Member
Thread Starter
 
Ziemas's Avatar
 
Join Date: Nov 2004
Location: Riga, Latvia
Bikes:
Posts: 10,082
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by TexasGuy View Post
I call bull****.
Me too.
Ziemas is offline   Reply With Quote
Old 12-12-07, 03:11 PM   #5
Ziemas
Senior Member
Thread Starter
 
Ziemas's Avatar
 
Join Date: Nov 2004
Location: Riga, Latvia
Bikes:
Posts: 10,082
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Tom Stormcrowe View Post
Yep, it sure is. If there is an arc in the switch, then you can get a surge that could theoretically fry the motherboard as well. Any component can fry with a surge. Latvia runs 220V European 50cycle. right?
Yes, Latvia has standard European current. I know components can fry with a surge, but just the PS and RAM via turning the light switch the computer is connect to on and off? Sounds damn suspect to me....
Ziemas is offline   Reply With Quote
Old 12-12-07, 03:11 PM   #6
msincredible
crazy bike girl
 
msincredible's Avatar
 
Join Date: Jul 2007
Location: CA Central Coast
Bikes: '07 Orbea Onix, '07 Birdy Yellow, '06 Cannondale Bad Boy (stolen)
Posts: 3,325
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
At work we have fried several computer power supplies by testing systems with 220V (forgot to switch the computer from 110, usually we remember but late at night on a weekend sometimes you forget these things ).

Anyway, we only ever needed to replace the power supply. Everything else was completely fine.
msincredible is offline   Reply With Quote
Old 12-12-07, 03:13 PM   #7
ax0n
Trans-Urban Velocommando
 
ax0n's Avatar
 
Join Date: Nov 2006
Location: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
Posts: 2,400
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It's very difficult to fry only the power supply and the RAM. On most modern PCs, the power supply would take the brunt of the hit, if not all of it. Power doesn't actually hit the RAM until the SCRs are fired up on the power supply. The RAM failing without the CPU or the Mobo? that's kind of fishy.
ax0n is offline   Reply With Quote
Old 12-12-07, 03:15 PM   #8
ModoVincere
Riding Heaven's Highways on the grand tour
 
ModoVincere's Avatar
 
Join Date: Aug 2006
Bikes:
Posts: 1,675
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by ax0n View Post
It's very difficult to fry only the power supply and the RAM. On most modern PCs, the power supply would take the brunt of the hit, if not all of it. Power doesn't actually hit the RAM until the SCRs are fired up on the power supply. The RAM failing without the CPU or the Mobo? that's kind of fishy.
Sounds like a static discharge to me. Wouldn't wipe out the power supply, but could easily destroy the RAM...and probably occurred after the power supply was fried. You know, someone touched the RAM modules without discharging any built up static first.
__________________
1 bronze, 0 silver, 1 gold
ModoVincere is offline   Reply With Quote
Old 12-12-07, 03:22 PM   #9
KingTermite 
On my TARDIScycle!
 
KingTermite's Avatar
 
Join Date: Jun 2005
Location: Eastside Seattlite Termite Mound
Bikes: Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
Posts: 3,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Tom Stormcrowe View Post
Yep, it sure is. If there is an arc in the switch, then you can get a surge that could theoretically fry the motherboard as well. Any component can fry with a surge. Latvia runs 220V European 50cycle. right?
+1

That doesn't mean its likely in your scenario....but it certainly is possible. A spike could have flubbed up power supply (if it was a cheapie or just died) and the result could be power supply spiking the rail to the motherboard. It can be unpredictable at that point. It could fry motherboard and everything on it, or just one small component like the ram.

Again, I'm not saying it's necessarily likely, but it definitely is possible.
__________________
Quote:
Originally Posted by coffeecake View Post
- it's pretty well established that Hitler was an *******.
KingTermite is offline   Reply With Quote
Old 12-12-07, 03:56 PM   #10
jsharr
You Know!? For Kids!
 
jsharr's Avatar
 
Join Date: Apr 2005
Location: Just NW of Richardson Bike Mart
Bikes: '05 Trek 1200 / '90 Trek 8000 / '? Falcon Europa
Posts: 6,157
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I say you give the guy some bread and tell him to have a fried ram sandwich.
__________________
Are you a registered member? Why not? Click here to register. It's free and only takes 27 seconds! Help out the forums, abide by our community guidelines.
Quote:
Originally Posted by colorider View Post
Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
jsharr is offline   Reply With Quote
Old 12-12-07, 04:15 PM   #11
DannoXYZ 
Senior Member
 
DannoXYZ's Avatar
 
Join Date: Jul 2005
Location: Saratoga, CA
Bikes:
Posts: 11,606
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
I've actually had a PS blow up inside the computer. Several capacitors in the PS had ruptured and blasted their guts everywhere (sounded like several firecrackers going off). That ended up causing some sort of power-spike on the PS output lines that destroyed a HD controller. But my MB, CPU and RAM was fine.

Last edited by DannoXYZ; 12-12-07 at 05:25 PM.
DannoXYZ is offline   Reply With Quote
Old 12-12-07, 04:28 PM   #12
Air
Destroyer of Wheels
 
Air's Avatar
 
Join Date: May 2006
Location: Creating some FA-Qs
Bikes: Nishiki Sport, Downtube IXNS, 1950's MMB3 Russian Folding Bike, MTB
Posts: 3,598
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Who connects a computer to a socket that can be flipped off by a light switch?
__________________
The Almighty Clyde FAQ || Northeast Index
eTrex Vista References || Road Reference


It's the year of the enema!
Air is offline   Reply With Quote
Old 12-12-07, 04:30 PM   #13
trsidn 
Soggy Member
 
trsidn's Avatar
 
Join Date: Jul 2007
Location: Putting the 'fun' in dysfunctional
Bikes: Cannondale CAAD8, Trek SU200
Posts: 287
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Quote:
Originally Posted by Ziemas View Post
Someone is trying to hustle me and a friend of mine for the cost of a new power supply and RAM, saying that one of us (or someone we know) fried both by accidentally turning off and then on the light switch which the computer was connected to off.

Needless to say, I'm not paying out, but I wonder, is it possible to fry both the power supply and the RAM on a computer by disrupting power and not have the motherboard or CPU effected? Or for that matter can one kill the power supply and RAM by disrupting power?

Thanks.
maybe possible, but I would say it's very unlikely....
__________________
Quote:
Originally Posted by ElJamoquio View Post
.... Other than being completely wrong, you're correct.
trsidn is offline   Reply With Quote
Old 12-12-07, 04:32 PM   #14
huytheskigod
Senior Member
 
huytheskigod's Avatar
 
Join Date: Jul 2005
Location: Davis, CA
Bikes: K2 Zed 3.0; Motobecane Le Champion; Pedal Force RS; IRO BFGB
Posts: 1,183
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My supervisor actually had flames come out the back of his power supply once. The mobo and ram/everything else was fine. He still used it as an excuse to get an new motherboard with a faster CPU and more ram though. I just used his old stuff to build a computer for our grad student office.
huytheskigod is offline   Reply With Quote
Old 12-12-07, 04:34 PM   #15
huytheskigod
Senior Member
 
huytheskigod's Avatar
 
Join Date: Jul 2005
Location: Davis, CA
Bikes: K2 Zed 3.0; Motobecane Le Champion; Pedal Force RS; IRO BFGB
Posts: 1,183
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Air View Post
Who connects a computer to a socket that can be flipped off by a light switch?
I made the mistake of having my surge protector too close to where my feet go under my desk. Nothing got fried though...but yeah...I should have known better.
huytheskigod is offline   Reply With Quote
Old 12-12-07, 04:34 PM   #16
Marrock
Senior Member
 
Marrock's Avatar
 
Join Date: Sep 2007
Bikes:
Posts: 1,921
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Stick a new power supply in it for about $20, clean up the contacts on the RAM, and see what happens.
Marrock is offline   Reply With Quote
Old 12-12-07, 04:47 PM   #17
skinnyone
Dude wheres my guads?
 
skinnyone's Avatar
 
Join Date: May 2005
Location: Guess
Bikes: Not enough
Posts: 2,680
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Possible.

You could have a short in your ram that caused a spike in your supply and hence causing it to fail.

You could have also had an overvoltage situation on the ram supply because of a faulty power supply thereby destroying your ram.

The latter might be more plausible given your sequence of events.
skinnyone is offline   Reply With Quote
Old 12-12-07, 05:20 PM   #18
Hickeydog
Crushing souls
 
Hickeydog's Avatar
 
Join Date: Jun 2007
Location: Sagamore Hills, Ohio.
Bikes: Trek 1500
Posts: 1,591
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think I would call him on bull****. Unless, of course, he's an NSA computer engineer with 40 years of experience.
__________________
Quote:
Originally Posted by Wordbiker View Post

What's frightening is how coherent Hickey was in posting that.
Hickeydog is offline   Reply With Quote
Old 12-12-07, 05:30 PM   #19
msincredible
crazy bike girl
 
msincredible's Avatar
 
Join Date: Jul 2007
Location: CA Central Coast
Bikes: '07 Orbea Onix, '07 Birdy Yellow, '06 Cannondale Bad Boy (stolen)
Posts: 3,325
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There's a very characteristic smell to frying the power supply.
msincredible is offline   Reply With Quote
Old 12-12-07, 05:40 PM   #20
ax0n
Trans-Urban Velocommando
 
ax0n's Avatar
 
Join Date: Nov 2006
Location: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
Posts: 2,400
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by msincredible View Post
There's a very characteristic smell to frying the power supply.
Not always. Electrolytics have an acrid smell but only if they rupture, not if they dome and vent. Solid state components often smell like magic smoke, but not always. If a fuse blows, only by voiding the PS warranty will you ever know.
ax0n is offline   Reply With Quote
Old 12-12-07, 11:48 PM   #21
Ziemas
Senior Member
Thread Starter
 
Ziemas's Avatar
 
Join Date: Nov 2004
Location: Riga, Latvia
Bikes:
Posts: 10,082
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Air View Post
Who connects a computer to a socket that can be flipped off by a light switch?
No, it's even better....the switch is in the hallway of a public office building! A friend of a friend accidentally brushed up against it at a party. WTF?

Last edited by Ziemas; 12-13-07 at 12:19 AM.
Ziemas is offline   Reply With Quote
Old 12-12-07, 11:59 PM   #22
KingTermite 
On my TARDIScycle!
 
KingTermite's Avatar
 
Join Date: Jun 2005
Location: Eastside Seattlite Termite Mound
Bikes: Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
Posts: 3,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Marrock View Post
Stick a new power supply in it for about $20, clean up the contacts on the RAM, and see what happens.
Great idea....buy a cheapo of probably the most important part you want to be of quality. It shouldn't happen again for at least another 2 months that way.
__________________
Quote:
Originally Posted by coffeecake View Post
- it's pretty well established that Hitler was an *******.
KingTermite is offline   Reply With Quote
Old 12-13-07, 12:10 AM   #23
bitingduck
Senior Member
 
bitingduck's Avatar
 
Join Date: Jan 2005
Bikes:
Posts: 3,057
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds unlikely unless the light switch was also connected to his superduper EMP generator that was plugged in and next to the computer.
__________________
Track - the other off-road
http://www.lavelodrome.org
bitingduck is offline   Reply With Quote
Old 12-13-07, 12:16 AM   #24
iamlucky13
Footballus vita est
 
iamlucky13's Avatar
 
Join Date: Jun 2002
Location: Portland, OR
Bikes: Trek 4500, Kona Dawg
Posts: 2,118
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Ziemas View Post
Someone is trying to hustle me and a friend of mine for the cost of a new power supply and RAM, saying that one of us (or someone we know) fried both by accidentally turning off and then on the light switch which the computer was connected to off.

Needless to say, I'm not paying out, but I wonder, is it possible to fry both the power supply and the RAM on a computer by disrupting power and not have the motherboard or CPU effected? Or for that matter can one kill the power supply and RAM by disrupting power?

Thanks.
Maybe. Unlikely unless there's something with a high current draw on the circuit to create a strong back EMF, but maybe. I've seen computers take dozens of hard power cycles with no trouble.

If he were friendly about it, I'd say it would be neighborly to help him out with a few bucks, but in the end, he's the one who hooked up a computer to light switch, and there's no way any random guest at the party could've known.
__________________
"The internet is a place where absolutely nothing happens. You need to take advantage of that." ~ Strong Bad
iamlucky13 is offline   Reply With Quote
Old 12-13-07, 12:17 AM   #25
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Air View Post
Who connects a computer to a socket that can be flipped off by a light switch?
Seriously...you would be surprised...visting a hotel, smoke some pot, get on facebook...boom....

Not joking...

better yet (nothing to do with post)

Visit strange country, place luggage on stove top, make tea, forget to take luggage off...mysterious fire...what, I owe 75,000$ in damages?...
Maelstrom is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 12:20 AM.