Upgrading your Synology DS1815+ to 6GB of RAM
1. Purchase compatible memory
The first step in your Synology DS1815+ RAM Upgrade is to acquire a compatible RAM module.
Synology states the DS1815+ supports: 4GB – DDR3-1600 unbuffered So-DIMM 204pin CL=11 1.5V
The Synology Community Forum seems to support that the Kingtson KVR16S11S8/4 as the best choice for the DS1815+. This is what I decided to go with and the upgrade went smoothly. My DS1815+ passed all memory diagnostics and is running great with this stick of RAM.
Alternatively, there are several other User Reported Compatible RAM modules to choose from. Just ensure that you purchase a module that is fully compatible with your DS1815+.
2. Remove six screws from rear of DS1815+
Using a Phillips screwdriver, remove the six screws holding the cover panel in place on the rear side of the DS1815+.
3. Slide the cover panel off
Place your thumbs on the indicated positions and then slide the cover panel toward you to remove.
4. Gain Access to the expandable memory slot
Locate the expandable memory slot (pictured below)
5. Insert the RAM module into the expandable memory slot
Align the RAM module with the grooves of the memory slot. (It will only fit one way). You will need to insert the module at an angle (shown in the picture below).
6. Lock the RAM module in place
Slowly push the RAM module down until you hear a solid click. Note the two capture arms on both side should hold the RAM module in a locked position.
7. Reassemble your DS1815+
Reverse the above steps. Slide the cover panel back on and reinstall six screws to secure the cover panel
8. Power on and verify RAM upgrade
Power on your DS1815+. After a few moments you should hear a single beep indicating a successful boot. Log in to your DS1815+ and open System Information to verify that your new Synology DS1815+ RAM Upgrade is complete!