[root@web ~]# dmidecode|grep -P -A5 "Memory\s+Device"| grep Size | grep -v Range　　　　#linux查看内存的插槽数以及每条内存有多大
Size: 1024 MB
Size: No Module Installed
You have new mail in /var/spool/mail/root
[root@web ~]# dmidecode | grep -P 'Maximum\s+Capacity'　　　　#linux查看内存增援的最大内存容量
Maximum Capacity: 4 GB
[root@web ~]# dmidecode | grep 'Speed'　　　　　　　　#linux查看内存条的频率 备注：主板兼容内存频率，并非真实内存频率
Max Speed: 5200 MHz
Current Speed: 2200 MHz
Speed: Unknown
Speed: Unknown
Speed: 800 MHz
Speed: 800 MHz