命令：
复制代码 代码示例:
# cat /proc/cpuinfo //查看cpu个数与频率
# dmidecode |grep "Product Name" //查看
服务器品牌和型号
查看主板几个内存插槽、最高支持多大内存、现已使用几个插槽。
命令：
复制代码 代码示例:
# dmidecode|grep -P 'Maximums+Capacity' //最大支持几G内存
# dmidecode|grep -P -A5 "Memorys+Device"|grep Size|grep -v Range //总共几个插槽，已使用几个插槽
Size: 1024 MB //此插槽有1根1G内存
Size: 1024 MB //此插槽有1根1G内存
Size: 1024 MB //此插槽有1根1G内存
Size: 1024 MB //此插槽有1根1G内存
Size: No Module Installed //此插槽未使用
Size: No Module Installed //此插槽未使用
方法2，查看内存总插槽数、已插几条内存、内存多大、内存频率多少？
复制代码 代码示例:
# dmidecode -t 17 //数字17是dmidecode的参数，本文最后有其他数字参数
dmidecode 2.7
SMBIOS 2.4 present.
Handle 0x0015, DMI type 17, 27 bytes.
Memory Device
Array Handle: 0x0013
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB 【插槽1有1条2GB内存】
Form Factor: DIMM
Set: None
Locator: DIMM00
Bank Locator: BANK
Type: Other
Type Detail: Other
Speed: 667 MHz (1.5 ns)
Manufacturer:
Serial Number: BZACSKZ001
Asset Tag: RAM82
Part Number: MT9HTF6472FY-53EA2
Handle 0x0017, DMI type 17, 27 bytes.
Memory Device
Array Handle: 0x0013
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB 【插槽2有1条2GB内存】
Form Factor: DIMM
Set: None
Locator: DIMM10
Bank Locator: BANK
Type: Other
Type Detail: Other
Speed: 667 MHz (1.5 ns)
Manufacturer:
Serial Number: BZACSKZ001
Asset Tag: RAM83
Part Number: MT9HTF6472FY-53EA2
Handle 0x0019, DMI type 17, 27 bytes.
Memory Device
Array Handle: 0x0013
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB 【插槽3有1条2GB内存】
Form Factor: DIMM
Set: None
Locator: DIMM20
Bank Locator: BANK
Type: Other
Type Detail: Other
Speed: 667 MHz (1.5 ns)
Manufacturer:
Serial Number: BZACSKZ001
Asset Tag: RAM84
Part Number: MT9HTF6472FY-53EA2
Handle 0x001B, DMI type 17, 27 bytes.
Memory Device
Array Handle: 0x0013
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB 【插槽4有1条2GB内存】
Form Factor: DIMM
Set: None
Locator: DIMM30
Bank Locator: BANK
Type: Other
Type Detail: Other
Speed: 667 MHz (1.5 ns)
Manufacturer:
Serial Number: BZACSKZ001
Asset Tag: RAM85
Part Number: MT9HTF6472FY-53EA2
根据上面输出可以发现，主板共4个内存插槽，每个插槽多少内存，所用内存频率多大。
附录：
dmidecode支持的数字参数：
Type Information
----------------------------------------
0 BIOS
1 System
2 Base Board
3 Chassis
4 Processor
5 Memory Controller
6 Memory Module
7 Cache
8 Port Connector
9 System Slots
10 On Board Devices
11 OEM Strings
12 System Configuration Options
13 BIOS Language
14 Group Associations
15 System Event Log
16 Physical Memory Array
17 Memory Device
18 32-bit Memory Error
19 Memory Array Mapped Address
20 Memory Device Mapped Address
21 Built-in Pointing Device
22 Portable Battery
23 System Reset
24 Hardware Security
25 System Power Controls
26 Voltage Probe
27 Cooling Device
28 Temperature Probe
29 Electrical Current Probe
30 Out-of-band Remote Access
31 Boot Integrity Services
32 System Boot
33 64-bit Memory Error
34 Management Device
35 Management Device Component
36 Management Device Threshold Data
37 Memory Channel
38 IPMI Device
39 Power Supply
