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Like MANY MANY other DS1815+ customers who have been impacted by the problem with the Atom processor which eventually keeps the unit from starting - I have finally solved mine, and I believe for the long term. If you deep dive into the issue you'll see SYNOLOGY - like many other vendors got burned by getting the problematic ATOM processor - so not completely their fault. However, regardless, I found someone that does the repair here in the Midwest - and this is what he does;
""The resistor fix, and or Q2/Q4 fix, PSU, etc, will only buy you another year, maybe 2 if your lucky. The Atom Bomb bug as I started calling it years ago, is a persistent degradation process that is still in effect on your unit. The stepping voltage is gonna look for a bigger window in another year or 2. And you might have just made a tiny big window. Trust me. Of the 100's I service every year. 90% already have the 100ohm, Q2/Q4 fix on them. It actually needs a few parts, and added resistors and a fet. All with better values then the originals. And an additional part added to the power supply to make it permanent. So never change a PSU. They never die. If you did buy a new PSU, and your unit works now because of this change you just made. You just bought more time again. And each MB takes 1-2 Hours to complete. As some parts in there I change out are size of a grain of sand. 0603 and 0201 sized SMD parts. 24 hours of compliance testing too. Only the factory does this. But I have to do this on each MB/PSU update revision...."" Synology Service Center //
I sent my DS1815+ to him (he's in Illinois - and had it back and running in days) - FIXED - NO problems - highly recommend him, in fact - SYNOLOGY should be recommending him as a 'service center' in the USA for products with the ATOM processor bug
""The resistor fix, and or Q2/Q4 fix, PSU, etc, will only buy you another year, maybe 2 if your lucky. The Atom Bomb bug as I started calling it years ago, is a persistent degradation process that is still in effect on your unit. The stepping voltage is gonna look for a bigger window in another year or 2. And you might have just made a tiny big window. Trust me. Of the 100's I service every year. 90% already have the 100ohm, Q2/Q4 fix on them. It actually needs a few parts, and added resistors and a fet. All with better values then the originals. And an additional part added to the power supply to make it permanent. So never change a PSU. They never die. If you did buy a new PSU, and your unit works now because of this change you just made. You just bought more time again. And each MB takes 1-2 Hours to complete. As some parts in there I change out are size of a grain of sand. 0603 and 0201 sized SMD parts. 24 hours of compliance testing too. Only the factory does this. But I have to do this on each MB/PSU update revision...."" Synology Service Center //
I sent my DS1815+ to him (he's in Illinois - and had it back and running in days) - FIXED - NO problems - highly recommend him, in fact - SYNOLOGY should be recommending him as a 'service center' in the USA for products with the ATOM processor bug