187(V)URD@

well anyway , I solder once in week electronic velleman components so don't think is hard for me to vmod

I just don't solder hardware , if something goes wrong with mobo or graca I loose my garantie and hardware is expensive for a student.

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kristos

Was this your first Vmod or was it the your first solder job?

piotke

first solder job

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kristos

dajjum that takes balls (or a well filled wallet )

piotke

:-)

I did Vmods before, but then I used SMD grabbers or glue

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Da_BoKa

i just did the 3 in 1 mod but for some reason speedfan measures the same vdimm as before ( 2.96 ), i've place a 1k VR between it and it doesn't change when i adjust it

strange and the board still works

kristos

Ok, I just (finally !!) started practicing on an old (dead?) mobo

cutting traces seems to be going well, I can't' test if I damaged something by cutting to deep but the trace is cut and the surrounding lines aren't

So then, I started tinning and soldering and here I got some issues:

the solder gets sucked onto the soldering iron wich is ok cuz it's supposed to be tinned anyway but I can hardly get any on the wires.

I'm guessing this is because I'm not using flux? (Didn't have that in the electronics shop, at leatst not the rosin flux...)


and then the biggest problem: after messing around a while, I started to get "korrels" (grains in english?).
I'm guessing this is "the other substance" in the solder (not tin but ...) that gets burned because the iron gets to hot (It's a cheapo 25W big tip unregulatable).


And lastly, I need some advice on how to unsolder one of them tiny SMD's because I tried but I had to try several times on each side before it would come loose and I touched each side waaaaaay longer then 3 seconds. Also, when it finally came off - I was using a small flat screwdriver to move it wich didn't seem like a good idea but I don't know how else to get the SMD off, lifting it with the solder iron didn't work so I'll need some tips on how to do this properly aswell - it slithered to the side and I fear that if I would do this on a good board, solder may stick on some unprotected points, shorting them.



So, I'll need your advice on why I'm having these problems and how to solve them offcourse



thx in advace

jmke

can answer on the solder not sticking to wires part: get Flux.

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jort

see i dont understand that people play with external flux on grakas mobo etc...

i did mutch of soldering in my life but i never used flux,
just use the solder with the flux inside

i use super solder wire of velleman
size 60% , dia 1.0 mm
and it works pritty fine

dunno its just my thought

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watercooling, chilled water,direct phase change, cascade, custom modding

kristos

Just got the same advice yort

but unlike you, I didn't solder much in my life I don't have the experience, and I don't have anyone to turn to for advice on how to do it or what best to buy. Not even the local electronics store could help me with my questions...

Yes, there's the internet and I'm learning but it's going step by step with falling and getting up ...