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afterdawn.com > forums > pc hardware > other pc hardware > pc making weird high pitch noise and not turing on :-(
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PC making weird high pitch noise and not turing on :-(
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shinnster
Senior Member
_ 		4. December 2007 @ 11:17 _ Link to this message    Send private message to this user   
Sorry if this is in the wrong section but i couldnt find another relevant thread. I normally hang out around the xbox 360 section and am not too clued up on pc repairs.

my pc has suddenly died on me and am not sure what needs replacing on it.
when i turn the switch on at the back (before i even press the power button on the front) there is a really high pitch whining noise.
the power button does nothing now so all i'm left with is a metal box that makes an annoying noise.

has this happened to anyone else before or does anyone know whats wrong with it? i'm guessing the PSU is dead but would rather have clarification before buying a new on.

cheers for any input in advance :-)
[ + quote]
xX Shinnster Xx


ub5crew
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sammorris
AfterDawn Addict

4 product reviews
_ 		4. December 2007 @ 12:07 _ Link to this message    Send private message to this user   
It can only be the motherboard or the power supply. As a precaution I'd say replace the power supply anyway.
[ + quote]


Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
shinnster
Senior Member
_ 		4. December 2007 @ 12:19 _ Link to this message    Send private message to this user   
i shall put in the power supply from my other pc and see if that fixes it. cheers for the reply dude
[ + quote]
xX Shinnster Xx


ub5crew
sammorris
AfterDawn Addict

4 product reviews
_ 		4. December 2007 @ 12:35 _ Link to this message    Send private message to this user   
Make sure that PSU is at least the same rating as the one you had before. An under-rated PSU could cause more problems.
[ + quote]


Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
Zer0ink
Member
_ 		4. December 2007 @ 12:54 _ Link to this message    Send private message to this user   
Well theres not many moving parts in that box of electronics

usually only three fans...cpc fan, power supply fan, case fan

of course didfferent computers have different arrays ie: two case fans

i would take the side panel off and listen to see what fan it's coming from and replace the fan (about $8)

if it's the fan in the Power supply unit then replace the whole unit

some times it's just a loose fan against the fan blades

keep in mind your problems may be more than one issue but dont panic cause they may just be to very minor things...computers are sensitive

bring more info

good luck
[ + quote]
Zer0ink
Member
_ 		4. December 2007 @ 12:55 _ Link to this message    Send private message to this user   
correction : some times it's just a loose WIRE against the fan blades
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shinnster
Senior Member
_ 		4. December 2007 @ 13:31 _ Link to this message    Send private message to this user   
the fans arent even going round. the pc does nothing but make the high pitch whining noise.
[ + quote]
xX Shinnster Xx


ub5crew
sammorris
AfterDawn Addict

4 product reviews
_ 		4. December 2007 @ 13:56 _ Link to this message    Send private message to this user   
A wire trapped in a fan doesn't make a high pitch whining noise, trust me. I've done it enough times.
[ + quote]


Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
ddp
Moderator
_ 		4. December 2007 @ 14:22 _ Link to this message    Send private message to this user   
replace the psu as it is done in. if have another psu that is lower in wattage then use it & plug it to motherboard & not the drives as just want to see if motherboard will post or not.
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Zer0ink
Member
_ 		4. December 2007 @ 20:16 _ Link to this message    Send private message to this user   
well i got my wire in a fan once and and i squeeld like a little girl so pull my finger
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sammorris
AfterDawn Addict

4 product reviews
_ 		4. December 2007 @ 20:18 _ Link to this message    Send private message to this user   
Depends how fast the fan is, typically you can only get sounds like that from tiny, high speed fans.
[ + quote]


Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
Zer0ink
Member
_ 		4. December 2007 @ 20:52 _ Link to this message    Send private message to this user   
it was a really really loud high pitched squeel and it was done real slow so to get the most out of the current
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ddp
Moderator
_ 		4. December 2007 @ 21:40 _ Link to this message    Send private message to this user   
it is 1 of the psu transformers that is causing the squeal, not the fan & a wire.
[ + quote]
sammorris
AfterDawn Addict

4 product reviews
_ 		5. December 2007 @ 05:30 _ Link to this message    Send private message to this user   
Agreed. I've heard this before several times, it's the electronics.
[ + quote]


Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
shinnster
Senior Member
_ 		5. December 2007 @ 08:39 _ Link to this message    Send private message to this user   
cheers for the help guys, psu replaced and pc works again :-)
[ + quote]
xX Shinnster Xx


ub5crew
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ddp
Moderator
_ 		5. December 2007 @ 12:10 _ Link to this message    Send private message to this user   
no problem, teach & learn
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