Changing from electrolytic capacitors to solid polymer capacitors.

[ObscureParadox_3XS]

Hi there guys,

 

I've got two NF3 250gb boards here which need the caps changing on them.

 

Since they need to be changed, I though that maybe putting solid caps on them might help a little tiny bit as it should reduce the ripple going to the cpu.

 

The caps that need changing are :

 

6 x 6.3v 3300 uF

 

4 x 16v 1500 uF

 

1 x 10v 1000 uF

 

I've found the following caps and where wondering if they would be any good for the board.

 

6.3V 1500 uF

 

16V 1000 uF

 

10V 470 uF

 

They are all solid caps, I've already bought them so one way or another I guess I'll find out soon enough. But if anyone could tell me why they wouldn't work then I suppose it would save me about an hours worth of work

 

Cheers guys!

[Calathea]

Solid caps is nice ESR-wise (ripple) but you still need the correct capacity. The ones you've bought are not really suitable, especially the 6,3 V which should be double the size. Sure you can go ahead and re-cap the boards but expect no improvement against fully working electrolytic ones IF you can not mount more caps in parallell to make up for the loss in size per cap.

[ObscureParadox_3XS]

If I connect two together in one slot will that combine the capacitance or not???

[Bobnova]

Capacitors in parallel add their capacitance together, so yes.

Keep the leads as short as possible though.

[ObscureParadox_3XS]

Capacitors in parallel add their capacitance together, so yes.

Keep the leads as short as possible though.

 

Thanks for that. I'll give it a go when I get the chance.

Edited April 26, 2013 by ObscureParadox