Hello guys, I want to take a couple caps from a dead Mobo, as I always do but this time they are just breaking apart, leaving their legs on the mobo, those are some polymer and pannys FL and FJ
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Re: How can i?
lol panny fj and fl are sometimes known to do that. i pulled a few off a mobo and the legs were left behind. i've seen other members report the same.
however, im not sure about polymers doing the same. what polymer is that? also is the mobo from the leaded solder era or lead-free solder era? could be the solder wont melt, thus the legs are left stuck on the mobo. haha!
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Re: How can i?
Experience would surely be at its highest levels after practicing in more than 2k mobos ..
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Re: How can i?
Is lead free solder sadly, the iron I used to use for this died, so am using an old 100w soldering gun, it's the first time this happens to me so must be the gun but my other 3 irons aren't that powerfulComment
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Re: How can i?
100w ? must be big caps .
are you adding flux or new solder ?Comment
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Re: How can i?
Sadly the biggest caps is a 16v 1800uf, and yes I added new solder and flux but the didn't work, I will try heating the board with a heat gun just a bit and will try again...Comment
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Re: How can i?
Apply fresh leaded solder and solder wick with a large enough tip if there is space.Comment
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Re: How can i?
i would just order new ones . you know they are good then if from a good source .Comment
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Re: How can i?
You can't order new caps in Venezuela they are all Chinese shit. And ordering new ones from digikey or farnell because shipping would be too expensive for me at least. A normal salary in Venezuela is 20/30usd so 10/15 on a bag of caps is just too much.
I tried applying leaded solder but it didn't work that well. The heat gun helped me a lot because I have the fl's on a Mobo that needed new capsComment
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Re: How can i?
It's a scrap board, right? just use your regular iron and add some extra heat with the heat gun, you will need someone to help, but this method really works in big ground areas.Comment
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Re: How can i?
Yes it's a scrap board. And already took the caps out. When the caps are damaged but the board is good I just pull the caps out and take the legs out with my iron heating on one side and pulling the legs with a small tweezer xDComment
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Re: How can i?
Well I'm using the FJ on a msi motherboard that was given to me with bad caps s478 but with 2 Sata ports. now i have 2 ASRock's 478 to recap and maybe sell them. They still have some market over here believe it or not.Comment
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Re: How can i?
Why buying from those overpriced corporation pricks when you buy from me for half the price?
If you have the market for them and you are able to sell it, ordering regularly, I can give you flat-rate discount too no matter if you reach each model quantity discount level 
Less jewellery, more gold into electrotech industry!
Half of the computer problems is caused by bad contacts 
Exclusive caps, meters and more!Hardware Insights - power supply reviews and more!Comment
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Hello, I'm a beginner for micro soldering. Right now I have some difficult to solder a qfn 20, I guess I put too much solder on the thermal-ground pad, the result is a corner of chip wich don't touch the board (last try).
I use a wire solder with hot air, I tin the board and chip before with iron and I use good flux.
I will have to solder a LVDS connector (40 pins, laptop pc), I saw a solder paste in seringe, good quality (it does not scatter).
See the test :
https://youtu.be/bNAzC-EvqHs?t=1767
With hot air from bellow the board, that's... -
Can someone recommend any good UV solder mask? But i need a solder mask that will stand high temperetures. The thing is...sometimes i have a bigger cooper ripped from the board, lets say mosfet pad... i reconstract it with cooper sheet, then i "glue it" with solder mask...then i use UV light...and let it cool a bit. After, i try to clean the cooper of extra solder mask..and till that part all is ok. But, when i use a soldering iron to solder that pad/cooper...the solder mask gets weaker or destroyed and finally the pad is ripped again from the board .
Is there any solder mask... -
So I though in my spare time I’d set myself up repairing motherboards mainly pin damaged lga1151 sockets types.
I’m using an achi ir sc pro rework station (gave up on my Achie ir6500 - don’t recommend)
I’ve managed to get my rework profile somewhere in the correct region (after a lot of trial and error) to get the old sockets off and reflow new ones back on again, the problems I’m getting is not all of the solder balls are re-attaching when re-flow occurs. I know this because when socket is removed pads still look clean and have no solder... -
so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!!
what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!
i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing... -
This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
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