How to solder in CPU VRM area?

[Stefan Payne]

Well, yeah, how do you solder in that area?!

I have the LF-8800 (de)soldering station but I'm somehow unable to desolder an unused cap space (get rid of the solder in those holes).

Desoldering caps works somehow, not great but I can live with that result...

Is there anything I can do to get rid of that solder in that hole?

I also tried some (rather cheap I think) solderwick - not much luck with that either...

[stj]

Re: How to solder in CPU VRM area?

heat the other side with hot air or an iron.

[clearchris]

Re: How to solder in CPU VRM area?

Add some 63/37 pb solder to lower the melting point of the lead free solder.

[Stefan Payne]

Re: How to solder in CPU VRM area?

Thanks stj, will try that next time...

@clearchris
I only have PbSn40 here
And SN60PbCu2/zh

But that board was pre RoHS anyway

[Behemot]

Re: How to solder in CPU VRM area?

I use ordinary transformer solder iron and dental explorer. This or similar

[clearchris]

Re: How to solder in CPU VRM area?

Thanks stj, will try that next time...

@clearchris
I only have PbSn40 here
And SN60PbCu2/zh

But that board was pre RoHS anyway

Yeah, any Pb solder will lower the melting point of lead free solder. 63/47 just has the lowest melting point of the pb/sn solders.