Hi! First topic here, i hope i can get some help
First of all, i know that there is a topic similar to this one but i already tried all the options there and no positive results so i'm trying my luck on a new topic.
So, basicly, i am a owner of a 7870 for almost 2 years. Till one year ago it worked fine but one day it started showing artifacts on Windows and on BIOS. After taking it apart and inspecting it i saw a bad capacitator but my "stupid-side" turned on and i decided to put the whole card in the oven for the "famous" oven reflow method. oh gosh, i was so dumb back then.
After several minutes in the oven, all the eletrolytic caps started to pop it looked like a firework show inside my oven. I quickly stopped the oven, opened it and let the card cool down. From that day that i haven't even once inserted the card back on my PC. Some months later (ebay shipping times and so) i got all the caps that i needed to change the bad ones. Picked up a 15€ soldering iron from local eletronics shop, saw some tutorials on youtube and was hoped to fix my card, but no, the solder around the caps legs wouldnt melt for nothing. So after this i opened a topic on a portuguese (i live in Portugal) eletronics forum and they said to me to buy a soldering gun because it was more powerful. Bought one and tried once again to melt the solder around the caps legs but nope, once again the solder wouldn't melt.
Went to back to the shop and bought a solder sucker, desoldering wire and water based flux. Tried all of those 3 and no sucess too. Tried lead-free and leaded solder and no results too.
Since i had a long-term wish of getting into reballing and reflow's and knowing that i would need a rework station I waited till i got it (some days ago) to try again. And once again, the solder would not met, even with the soldering set to 500c (max). Tried both solder again (lead-free and leaded) and it seems that solder "slides" around the legs of the caps and it doesnt joins the existing solder on the cap leg. Already tried too to apply heat on the caps legs with the hot air gun in the rework station (heat set at 150c) and then use the soldering iron to desolder it and no sucess, once again.
Feeling kinda desesperated to confess :|
I hope i can get some help,
Greetings snowie.