我为我的 Dell Latitude 5420 买了第二个 SO-DIMM,现在想检查 RAM 是否在双通道模式下工作。每个人都建议使用 dmidecode 来解决这个问题,但我的输出与其他人的不同。但它也与我之前拥有的单通道笔记本电脑不同,所以我不知道如何解释它。有人能帮忙吗?以下是 的输出sudo dmidecode -t memory
:
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.2 present.
Handle 0x1000, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 128 GB
Error Information Handle: Not Provided
Number Of Devices: 2
Handle 0x1100, DMI type 17, 92 bytes
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16 GB
Form Factor: SODIMM
Set: None
Locator: DIMM B
Bank Locator: BANK 0
Type: DDR4
Type Detail: Synchronous
Speed: 3200 MT/s
Manufacturer: 01980000802C
Serial Number: CEB33182
Asset Tag: 07213400
Part Number: 9905744-077.A00G
Rank: 2
Configured Memory Speed: 3200 MT/s
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: 1.2 V
Memory Technology: DRAM
Memory Operating Mode Capability: Volatile memory
Firmware Version: Not Specified
Module Manufacturer ID: Bank 2, Hex 0x98
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: 16 GB
Cache Size: None
Logical Size: None
Handle 0x1104, DMI type 17, 92 bytes
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16 GB
Form Factor: SODIMM
Set: None
Locator: DIMM A
Bank Locator: BANK 0
Type: DDR4
Type Detail: Synchronous
Speed: 3200 MT/s
Manufacturer: 80AD000080AD
Serial Number: 2371A7C9
Asset Tag: 02211100
Part Number: HMAA2GS6AJR8N-XN
Rank: 1
Configured Memory Speed: 3200 MT/s
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: 1.2 V
Memory Technology: DRAM
Memory Operating Mode Capability: Volatile memory
Firmware Version: Not Specified
Module Manufacturer ID: Bank 1, Hex 0xAD
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: 16 GB
Cache Size: None
Logical Size: None
如您所见,这些摇杆位于同一个组中,但位于不同的定位器中。这是否意味着它们在单通道或双通道模式下运行?或者还有其他方法可以找出答案?
编辑:BIOS 照片- 嗯,这很简单。谢谢,戴尔!当然,还有 Mokubai,他为我指出了一个显而易见的解决方案 :)
答案1
打开终端并运行:
sudo dmidecode -t 17 | awk 'BEGIN { FS=":"; OFS="\t" } /Size|Channel/ { line = (line ? line OFS : "") $2 } /^$/ { print line; line="RAM" }' | grep -iv 'no'
情况1 :
(输出为)
RAM 4 GB 通道 A-DIMM0
RAM 4 GB 通道 B-DIMM0
-> 表示使用 2 个通道 A 和 B(如果您的系统使用更多通道,则可能包括通道C、通道D……)
案例 2:
(无输出)
-> 意味着你的系统正在使用单通道