I have 32bit win7 with 8G ram but only 3G available due to 32bit win7 system allocation
I backed up my /BitSharesX dir (database) so I can restore and repeat the syncing.
Installed 0.4.23 and start syncing, while at 82% complete it eats up 98% of my available memory then crash.
So I tried memory optimizer software still crash, also tried different approach still it crashes due to low memory.
The only way to sync it is in the client mode that will take hours even days to complete.
or just upgrade your memory.
edit: I managed to optimized the RAM and still it keep crashing at 82%, so I guess it's not the RAM, something with the 32bit for this version.