By default Syncrify server is configured to use a maximum of 512 MB ram. This number can be increased up to 1536 MB on a 32bit machine and up to 192 GB for machines running 64bit operating systems.
Do not allocate more than 1.5 GB ram on a 32bit version of Syncrify, even if you are using a 64bit OS. Allocating a higher number will result in errors during startup. Consider using a 64bit version of Syncrify if you need to allocate more memory.