For servers there are different variances of server memory. Some can be ECC which is error correction memory which helps a server automatically repairs the errors in the memory as it runs so no reboot or reset is required. Your server can stay on for 24/7. Some are NON-ECC. Of course the higher the speeds of the memory the better performance you get out of them. In servers some servers use the memory as a data cache to help read and writes speeds are higher when copying data from one source to another. Ask what's the best memory to use with your setup!