[dejanribic]

Hey guys!

The problem seems to be that whenever I start up my system, wierd vertical red lines appear (as in every other case of broken pre-baked cards I've seen), is it safe to assume that the "contacts" or w/e they are have become unsoldered, and can I just bake it 10min in a preheated 400F (200C) oven? Aluminium balls and all removable bits taken off, ofc?

Thanks in advance!

 

[Lord Xeb]

Time to bake. And they have microfractures in the solder, not unsoldered. Heating/cooling cycles cause stress fractures within the solder.

 

[dejanribic]

Quote:

Originally Posted by Lord Xeb Time to bake. And they have microfractures in the solder, not unsoldered. Heating/cooling cycles cause stress fractures within the solder.

Is there any reliable statistic? How often does this work?

 

[cyanmcleod]

it has worked all 3 times i have done it, i know thats not much to go on but its all i have to offer.

 

[Lord Xeb]

Think of it like this:

Take a wire and bend it back and forth a bunch, it is eventually got to break. in a way that is what is happening to the solder. Baking it can help reflow the solder but it actually just makes it soft so the weight of the chip presses the fissures in the solder back together.

Also it isn't guarranteed it will work, but I would give it a 50-50 chance.

 

[KBcobra]

Quote:

Originally Posted by dejanribic Is there any reliable statistic? How often does this work?

Worth a try imo, nothing to lose. I had it work before. It doesn't always work. I would say its about 66% chance of success from experience.

 

[selectstriker2]

i did it with a bfg 8800gtx and it worked perfectly. but if i remember right i did it at like 275 F for 12 min

 

[Lord Xeb]

Start at low tempuratures and go higher.

Also make sure you cover any plastic or critical components with aluminum foil.