On 01/19/2016 06:29 PM, J Martin Rushton wrote:
(Off topic) I also remember seeing engineers determine which memory chip was at fault and replacing the chip using a soldering iron. Try that on a DIMM!
As long as the DIMM isn't populated with BGA packages it's about a ten-minute job with a hot air rework station, which will only cost you around $100 or so if you shop around (and if you have a relatively steady hand and either good eyes or a good magnifier). It's doable in a DIY way even with BGA, but takes longer and you need a reballing mask for that specific package to make it work right. Any accurately controlled oven is good enough to do the reflow (and baking Xbox boards is essentially doing a reflow......)
Yeah, I prefer tubes and discretes and through-hole PCB's myself, but at this point I've acquired a hot air station and am getting up to speed on surface mount, and am finding that it's not really that hard, just different.
This is not that different from getting up to speed with something really new and different, like systemd. It just requires being willing to take a different approach to the problem. BGA desoldering/resoldering requires a whole different way of looking at the soldering operation, that's all.
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