Can anyone here provide a photograph of how to add Ram memory to a Nucleus Rev B. How many cards may be added?
You don’t really need a photo. Remove the bottom and take out the one 4GB chip and replace with 2 - 8GB if you want 16GB. That’s what I did. No need for more than 16GB.
You can use 2 sticks. It‘s slightly faster if you use 2 sticks of the same size and type, so 2x4 or 2x8.
Be aware that adding RAM only has an effect (apart from the very slight speed increase by using two sticks) if your Nucleus was crashing due to not having enough RAM with a large library. If it wasn’t crashing, more RAM does nothing, and in particular does not make it faster
If you’re like me a video is helpful the first time through. This video is for a NUC Mini PC. Should be a similar MB in the Nucleus.
Hope this helps.
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Thanks Mike, and all of you. That video is very helpful.
I’m adding RAM in order to try and eliminate a frequent rebooting of the machine, which may or may not be RAM related. It’s an inexpensive way to eliminate the possibility that not enough RAM is the root of the problem.
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Frequent rebooting might well be a crash. What I would do is use two new sticks to rule out an issue with the old one as well. 2x4 is probably enough but 2x8 is extra safe even with a very large library, and as you said it’s cheap.
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The NUC7i3BNH can accept max. 32 GB (i.e., 2x16 preferably) of DDR4-2133 1.2V SO-DIMM
According to:
https://www.intel.com/content/www/us/en/products/sku/95066/intel-nuc-kit-nuc7i3bnh.html
However, the Roon documentation says something else, which is strange but probably better to stick to this:
You need several 100K tracks to get into an area where you need 2x16 to avoid out-of-memory crashes, and I suppose that a Nucleus may become too slow much before you reach that number.
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Thank you!
See the edit I have just added while you replied
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I could only find a way to put in one chip. Are there definitely 2 in the Rev B?
@Jim_F put 2x8 in his:
You might not have needed a photo, but I did.
As I said I couldn’t see how to insert two cards, but I did replace the 4GB card with 8GB and so far I’ve had an uninterrupted nights listening. Fingers crossed!
(At the age of 71, the tech is not as obvious as it might be to others,)
I’ve not seen the inside of the Rev B but have to think it is some form of a standard NUC Motherboard and those I would expect to have 2 memory slots. One on top of the other slightly staggered as shown in the video.
Anyway, you’ve doubled the memory and that seems to have helped with the issue for now.
I’ll be 72 this January and like to refresh my memory with actual videos of what I need to do before attempting it. Not a bad thing.
Thanks Mike.
I watched the video again and figured out how to fit the second memory card, so now I’m up to the 16GB which is recommended here.
I didn’t realise there was only 4GB in the Nucleus when I bought it. I’m surprised it worked for several years without problems.
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I’m almost 77. Age is not an issue, it’s just what you are used to doing and comfortable trying.
You old dog. For me it’s short term memory that was damaged with my head injury in 1990. My mental memory paging system doesn’t work like it should so I need refreshers from time to time. It’s all good.
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I’m not a computer guy and was a little nervous about this project.
As it turned out, I just swapped the original 4GB RAM module in my Nucleus for the recommended twin 8GB modules and it couldn’t have been easier.
The hardest part was unplugging everything from the back of the Nucleus and then plugging them back in again.
I was getting these screens all the time:
Now everything is loading lightning fast (knock wood). 
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It was interesting / surprising to open my NUC and discover 1 lonely 4GB SIMM. Odd that there does not seem to be a way to read installed memory configuration that I can find.
Added 2x8. 
Only in the BIOS