리눅스 메모리 timing 확인하기

일단 내 노트북에서는 온보드라서 그런가 확인에 실패

 

$ sudo modprobe eeprom modprobe: FATAL: Module eeprom not found in directory /lib/modules/6.8.0-90-generic $ sudo modprobe at24 $ decode-dimms 명령어 'decode-dimms' 을(를) 찾을 수 없습니다. 그러나 다음을 통해 설치할 수 있습니다: sudo apt install i2c-tools $ decode-dimms No EEPROM found, the kernel probably does not support your hardware.

 

$ sudo dmidecode -t dmidecode: option requires an argument -- 't' Type number or keyword expected Valid type keywords are:   bios   system   baseboard   chassis   processor   memory   cache   connector   slot $ sudo dmidecode -t memory # dmidecode 3.3 Getting SMBIOS data from sysfs. SMBIOS 3.2.0 present. Handle 0x0013, DMI type 16, 23 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 32 GB Error Information Handle: Not Provided Number Of Devices: 2 Handle 0x0014, DMI type 17, 84 bytes Memory Device Array Handle: 0x0013 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8 GB Form Factor: Other Set: None Locator: ChannelA-DIMM0 Bank Locator: BANK 0 Type: DDR4 Type Detail: Synchronous Speed: 2667 MT/s Manufacturer: Samsung Serial Number: 00000000 Asset Tag: 9876543210 Part Number: M471A1G44AB0-CTD     Rank: 1 Configured Memory Speed: 2667 MT/s Minimum Voltage: 1.2 V Maximum Voltage: 1.2 V Configured Voltage: 1.2 V Memory Technology: DRAM Memory Operating Mode Capability: Volatile memory Firmware Version: Not Specified Module Manufacturer ID: Bank 1, Hex 0xCE Module Product ID: Unknown Memory Subsystem Controller Manufacturer ID: Unknown Memory Subsystem Controller Product ID: Unknown Non-Volatile Size: None Volatile Size: 8 GB Cache Size: None Logical Size: None Handle 0x0015, DMI type 17, 84 bytes Memory Device Array Handle: 0x0013 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8 GB Form Factor: Other Set: None Locator: ChannelB-DIMM0 Bank Locator: BANK 2 Type: DDR4 Type Detail: Synchronous Speed: 2667 MT/s Manufacturer: Samsung Serial Number: 00000000 Asset Tag: 9876543210 Part Number: M471A1G44AB0-CTD     Rank: 1 Configured Memory Speed: 2667 MT/s Minimum Voltage: 1.2 V Maximum Voltage: 1.2 V Configured Voltage: 1.2 V Memory Technology: DRAM Memory Operating Mode Capability: Volatile memory Firmware Version: Not Specified Module Manufacturer ID: Bank 1, Hex 0xCE Module Product ID: Unknown Memory Subsystem Controller Manufacturer ID: Unknown Memory Subsystem Controller Product ID: Unknown Non-Volatile Size: None Volatile Size: 8 GB Cache Size: None Logical Size: None

 

$ sudo lshw -C memory   *-firmware                        description: BIOS        vendor: American Megatrends Inc.        physical id: 0        version: P07RFG.042.201224.FL        date: 12/24/2020        size: 64KiB        capacity: 16MiB        capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int14serial int17printer acpi usb biosbootspecification uefi   *-memory        description: System Memory        physical id: 13        slot: System board or motherboard        size: 16GiB      *-bank:0           description: Project-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2017-08-19 08:42+0000Last-Translator: Gunwoo Kim <Unknown>Language-Team: Korean <ko@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2024-09-02 19:29+0000X-Generator: Launchpad (build 1b1ed1ad2dbfc71ee62b5c5491c975135a771bf0) DDR4 동기 2667 MHz (0.4 ns)           product: M471A1G44AB0-CTD           vendor: Samsung           physical id: 0           serial: 00000000           slot: ChannelA-DIMM0           size: 8GiB           width: 64 bits           clock: 2667MHz (0.4ns)      *-bank:1           description: Project-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2017-08-19 08:42+0000Last-Translator: Gunwoo Kim <Unknown>Language-Team: Korean <ko@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2024-09-02 19:29+0000X-Generator: Launchpad (build 1b1ed1ad2dbfc71ee62b5c5491c975135a771bf0) DDR4 동기 2667 MHz (0.4 ns)           product: M471A1G44AB0-CTD           vendor: Samsung           physical id: 1           serial: 00000000           slot: ChannelB-DIMM0           size: 8GiB           width: 64 bits           clock: 2667MHz (0.4ns)   *-cache:0        description: L1 캐시        physical id: 1f        slot: L1 Cache        size: 256KiB        capacity: 256KiB        capabilities: synchronous internal write-back unified        configuration: level=1   *-cache:1        description: L2 캐시        physical id: 20        slot: L2 Cache        size: 1MiB        capacity: 1MiB        capabilities: synchronous internal write-back unified        configuration: level=2   *-cache:2        description: L3 캐시        physical id: 21        slot: L3 Cache        size: 8MiB        capacity: 8MiB        capabilities: synchronous internal write-back unified        configuration: level=3   *-memory UNCLAIMED        description: RAM memory        product: Comet Lake PCH-LP Shared SRAM        vendor: Intel Corporation        physical id: 14.2        bus info: pci@0000:00:14.2        version: 00        width: 64 bits        clock: 33MHz (30.3ns)        capabilities: pm cap_list        configuration: latency=0        resources: memory:b1220000-b1221fff memory:b1229000-b1229fff

 

[링크 : https://superuser.com/questions/519822/how-to-check-ram-timings-in-linux]