Broken laptop capacitor

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0
Well I was trying to get to the CPu so I can change out the thermal paste then I accidentally nudged on a capacitor and fell off, I don't know if this is bad or not or what voltages it was controlling. What do I do? Buy a new motherboard or is it fine to turn it on.




(Broken capacitor is not near the CPU) it's near the INput and output)
 

InvalidError

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Moderator
May 18, 2007
295
0
19,260
92
Should work fine, at least for the time being. No guarantees about long-term reliability or stability. If the original designers put the capacitor there, there must have been a reason or otherwise it would have been cost-optimized out of the design.
 

InvalidError

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May 18, 2007
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Missing capacitors will increase ripple on whatever supply rail it was on, which could cause stability issues and will accelerate aging of the remaining capacitors, possibly leading to premature failures. If you can put the missing capacitor back on, I would recommend doing so. If you cannot trust yourself with soldering in whatever area the capacitor fell from, then you may be better off leaving it alone.
 

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0


I know how to solder, but in this case it it very dangerous. The capacitor canoe off without the pins and 1 out of 2 of the pins are missing.
 

mcnumpty23

Distinguished
Jul 15, 2011
580
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19,210
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then it may be too difficult to solder a new one one

 

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0


Plus the capacitor that came off does not have a voltage number on it but the other ones on the mobo do, why?
 

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0


i can tell you the make hp pavilion g7 2223nr
 

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0


There are words on the capacitor thats say "100 cfk un2"
 

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0


So is it a bad thing its broken? I put it back but only one pin is going in the capacitor and the pc seems for work fine, i put it back together.
 

Jolaoso

Estimable
Jul 22, 2015
10
0
4,560
0

oh ok, there are only 2 usb ports near that capacitor, what will happen if i use them.
 

InvalidError

Distinguished
Moderator
May 18, 2007
295
0
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Should work fine, at least for the time being. No guarantees about long-term reliability or stability. If the original designers put the capacitor there, there must have been a reason or otherwise it would have been cost-optimized out of the design.
 

uneek05

Prominent
Oct 2, 2017
1
0
510
0


Hi guys I'd like to know what was your reason for the initial take apart, was your PC shutting off or performance issues.

 
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