今天我打开了我的Compaq 15-s103TX 笔记本电脑发现它有一个空的 RAM 插槽。所以我想将它升级到 8GB RAM（旧 4GB + 新 4GB）。
sudo dmidecode我正在使用 Ubuntu 16.04，以下是（系统详细信息）的输出：
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.
59 structures occupying 2945 bytes.
Table at 0x9CEAC000.
Handle 0x0000, DMI type 221, 12 bytes
OEM-specific Type
Header and Data:
DD 0C 00 00 01 01 00 01 07 00 00 00
Strings:
Reference Code - ACPI
Handle 0x0001, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 16 GB
Error Information Handle: 0x0008
Number Of Devices: 2
Handle 0x0002, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0001
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: Bottom-Slot 1(left)
Bank Locator: BANK 0
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Empty
Serial Number: Empty
Asset Tag: Unknown
Part Number: Empty
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x0004, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0001
Error Information Handle: 0x0006
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: SODIMM
Set: None
Locator: Bottom-Slot 2(right)
Bank Locator: BANK 2
Type: DDR3
Type Detail: Synchronous
Speed: 1600 MHz
Manufacturer: Hynix
Serial Number: 2211125B
Asset Tag: Unknown
Part Number: HMT451S6BFR8A-PB
Rank: 1
Configured Clock Speed: 1600 MHz
Handle 0x0006, DMI type 18, 23 bytes
32-bit Memory Error Information
Type: OK
Granularity: Unknown
Operation: Unknown
Vendor Syndrome: Unknown
Memory Array Address: Unknown
Device Address: Unknown
Resolution: Unknown
Handle 0x0007, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FFFFFFFF
Range Size: 4 GB
Physical Device Handle: 0x0004
Memory Array Mapped Address Handle: 0x0009
Partition Row Position: 1
Interleave Position: 2
Interleaved Data Depth: 1
Handle 0x0008, DMI type 18, 23 bytes
32-bit Memory Error Information
Type: OK
Granularity: Unknown
Operation: Unknown
Vendor Syndrome: Unknown
Memory Array Address: Unknown
Device Address: Unknown
Resolution: Unknown
Handle 0x0009, DMI type 19, 31 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FFFFFFFF
Range Size: 4 GB
Physical Array Handle: 0x0001
Partition Width: 2
Handle 0x000B, DMI type 0, 24 bytes
BIOS Information
Vendor: Insyde
Version: F.39
Release Date: 05/26/2015
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 6144 kB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
5.25"/360 kB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
8042 keyboard services are supported (int 9h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 15.57
Firmware Revision: 86.52
Handle 0x000C, DMI type 1, 27 bytes
System Information
Manufacturer: Hewlett-Packard
Product Name: Compaq 15 Notebook PC
Version: 0990110000000000000600087
Serial Number: CND446CL46
UUID: 0F8D7781-7668-E411-B2A0-ECB1D7BE0333
Wake-up Type: Power Switch
SKU Number: K8T82PA#ACJ
Family: 103C_5335KV G=N L=CON B=CO S=PRE
Handle 0x000D, DMI type 2, 16 bytes
Base Board Information
Manufacturer: Hewlett-Packard
Product Name: 2212
Version: 86.52
Serial Number: PEHYFH21T7PGIH
Asset Tag: Type2 - Board Asset Tag
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: Type2 - Board Chassis Location
Chassis Handle: 0x000E
Type: Motherboard
Contained Object Handles: 0
Handle 0x000E, DMI type 3, 23 bytes
Chassis Information
Manufacturer: Hewlett-Packard
Type: Notebook
Lock: Not Present
Version: Chassis Version
Serial Number: Chassis Serial Number
Asset Tag: Chassis Asset Tag
Boot-up State: Safe
Power Supply State: Safe
Thermal State: Safe
Security Status: None
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: 1
Contained Elements: 0
SKU Number: Not Specified
Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1A1
Internal Connector Type: None
External Reference Designator: Keyboard
External Connector Type: PS/2
Port Type: Keyboard Port
Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J1A1
Internal Connector Type: None
External Reference Designator: Mouse
External Connector Type: PS/2
Port Type: Mouse Port
Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J2A2
Internal Connector Type: None
External Reference Designator: COM 1
External Connector Type: DB-9 male
Port Type: Serial Port 16550A Compatible
Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A1
Internal Connector Type: None
External Reference Designator: USB
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A1
Internal Connector Type: None
External Reference Designator: USB
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J3A1
Internal Connector Type: None
External Reference Designator: USB
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J5A1
Internal Connector Type: None
External Reference Designator: USB
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J5A1
Internal Connector Type: None
External Reference Designator: USB
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J5A1
Internal Connector Type: None
External Reference Designator: Network
External Connector Type: RJ-45
Port Type: Network Port
Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J9G2
Internal Connector Type: On Board Floppy
External Reference Designator: OnBoard Floppy Type
External Connector Type: None
Port Type: Other
Handle 0x0019, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J7J1
Internal Connector Type: On Board IDE
External Reference Designator: OnBoard Primary IDE
External Connector Type: None
Port Type: Other
Handle 0x001A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J2A1
Internal Connector Type: None
External Reference Designator: TV OUT
External Connector Type: Mini DIN
Port Type: Video Port
Handle 0x001B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J2A2
Internal Connector Type: None
External Reference Designator: CRT
External Connector Type: DB-15 female
Port Type: Video Port
Handle 0x001C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J30
Internal Connector Type: None
External Reference Designator: Microphone In
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x001D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J30
Internal Connector Type: None
External Reference Designator: Line In
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x001E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J30
Internal Connector Type: None
External Reference Designator: Speaker Out
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port
Handle 0x001F, DMI type 9, 17 bytes
System Slot Information
Designation: J5C1
Type: x16 PCI Express x16
Current Usage: Available
Length: Other
ID: 1
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:01.0
Handle 0x0020, DMI type 9, 17 bytes
System Slot Information
Designation: J6C1
Type: x1 PCI Express x1
Current Usage: Available
Length: Other
ID: 2
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.0
Handle 0x0021, DMI type 9, 17 bytes
System Slot Information
Designation: J6C2
Type: x1 PCI Express x1
Current Usage: Available
Length: Other
ID: 3
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.1
Handle 0x0022, DMI type 9, 17 bytes
System Slot Information
Designation: J6D2
Type: x1 PCI Express x1
Current Usage: Available
Length: Other
ID: 4
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.2
Handle 0x0023, DMI type 9, 17 bytes
System Slot Information
Designation: J7C1
Type: x1 PCI Express x1
Current Usage: Available
Length: Other
ID: 5
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.3
Handle 0x0024, DMI type 9, 17 bytes
System Slot Information
Designation: J7D2
Type: x1 PCI Express x1
Current Usage: Available
Length: Other
ID: 6
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.4
Handle 0x0025, DMI type 9, 17 bytes
System Slot Information
Designation: J8C1
Type: x1 PCI Express x1
Current Usage: Available
Length: Other
ID: 7
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.5
Handle 0x0026, DMI type 9, 17 bytes
System Slot Information
Designation: J8C2
Type: x16 PCI Express x16
Current Usage: Available
Length: Other
ID: 8
Characteristics:
PME signal is supported
Hot-plug devices are supported
Bus Address: 0000:00:1c.7
Handle 0x0027, DMI type 11, 5 bytes
OEM Strings
String 1: $HP$
String 2: LOC#
String 3: ABS 70/71 78 79 7A 7B
String 4: CNB1 0990110000000000000600087
String 5: HP_Mute_LED_0_A
String 6: String6 for Original Equipment Manufacturer
String 7: String7 for Original Equipment Manufacturer
String 8: String8 for Original Equipment Manufacturer
String 9: String9 for Original Equipment Manufacturer
String 10: String10 for Original Equipment Manufacturer
String 11: String11 for Original Equipment Manufacturer
Handle 0x0028, DMI type 12, 5 bytes
System Configuration Options
Option 1: String1 for Type12 Equipment Manufacturer
Option 2: String2 for Type12 Equipment Manufacturer
Option 3: String3 for Type12 Equipment Manufacturer
Option 4: String4 for Type12 Equipment Manufacturer
Option 5: String5 for Type12 Equipment Manufacturer
Option 6: String6 for Type12 Equipment Manufacturer
Option 7: String7 for Type12 Equipment Manufacturer
Option 8: String8 for Type12 Equipment Manufacturer
Handle 0x0029, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Long
Installable Languages: 5
en|U
|iso8859-1
fr|CA|iso8859-1
es|ES|iso8859-1
zh|TW|unicode
Currently Installed Language: en|U
Handle 0x002A, DMI type 15, 29 bytes
System Event Log
Area Length: 0 bytes
Header Start Offset: 0x0000
Header Length: 32 bytes
Data Start Offset: 0x0020
Access Method: General-purpose non-volatile data functions
Access Address: 0x0000
Status: Valid, Not Full
Change Token: 0x12345678
Header Format: OEM-specific
Supported Log Type Descriptors: 3
Descriptor 1: POST memory resize
Data Format 1: None
Descriptor 2: POST error
Data Format 2: POST results bitmap
Descriptor 3: Log area reset/cleared
Data Format 3: None
Handle 0x002B, DMI type 21, 7 bytes
Built-in Pointing Device
Type: Touch Pad
Interface: PS/2
Buttons: 4
Handle 0x002C, DMI type 22, 26 bytes
Portable Battery
Location: Primary
Manufacturer: 13-42
Manufacture Date: 01/01/2013
Serial Number: SERIAL
Name: OA04041
Chemistry: Lithium Ion
Design Capacity: 41440 mWh
Design Voltage: 14800 mV
SBDS Version: 1
Maximum Error: 1%
OEM-specific Information: 0x000B050D
Handle 0x002D, DMI type 24, 5 bytes
Hardware Security
Power-On Password Status: Disabled
Keyboard Password Status: Disabled
Administrator Password Status: Disabled
Front Panel Reset Status: Disabled
Handle 0x002E, DMI type 26, 22 bytes
Voltage Probe
Description: Voltage Probe Description.
Location: Unknown
Status: Unknown
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x002F, DMI type 27, 15 bytes
Cooling Device
Type: Fan
Status: OK
OEM-specific Information: 0x00000000
Nominal Speed: 2000 rpm
Description: Cooling Device Description.
Handle 0x0030, DMI type 32, 20 bytes
System Boot Information
Status: No errors detected
Handle 0x0031, DMI type 39, 22 bytes
System Power Supply
Location: OEM_Define0
Name: OEM_Define1
Manufacturer: OEM_Define2
Serial Number: OEM_Define3
Asset Tag: OEM_Define4
Model Part Number: OEM_Define5
Revision: OEM_Define6
Max Power Capacity: 75 W
Status: Present, OK
Type: Regulator
Input Voltage Range Switching: Auto-switch
Plugged: No
Hot Replaceable: No
Cooling Device Handle: 0x002F
Handle 0x0032, DMI type 40, 18 bytes
Additional Information 1
Referenced Handle: 0x001f
Referenced Offset: 0x05
String: PCIExpressx16
Value: 0xaa
Additional Information 2
Referenced Handle: 0x000b
Referenced Offset: 0x05
String: Compiler Version: VC 9.0
Value: 0x05dc
Handle 0x0033, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Skyray
Type: Other
Status: Enabled
Type Instance: 1
Bus Address: 0000:0a:00.0
Handle 0x0034, DMI type 136, 6 bytes
OEM-specific Type
Header and Data:
88 06 34 00 FF FF
Handle 0x0035, DMI type 128, 8 bytes
OEM-specific Type
Header and Data:
80 08 35 00 55 AA 55 AA
Strings:
Oem Test 1
Oem Test 2
Handle 0x0036, DMI type 129, 8 bytes
OEM-specific Type
Header and Data:
81 08 36 00 01 01 02 01
Strings:
Intel_ASF
Intel_ASF_001
Handle 0x0037, DMI type 130, 20 bytes
OEM-specific Type
Header and Data:
82 14 37 00 24 41 4D 54 01 01 01 01 01 A5 9F 02
00 00 01 00
Handle 0x0038, DMI type 4, 42 bytes
Processor Information
Socket Designation: U3E1
Type: Central Processor
Family: Core i3
Manufacturer: Intel(R) Corporation
ID: 51 06 04 00 FF FB EB BF
Signature: Type 0, Family 6, Model 69, Stepping 1
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Intel(R) Core(TM) i3-4005U CPU @ 1.70GHz
Voltage: 0.7 V
External Clock: 100 MHz
Max Speed: 1700 MHz
Current Speed: 1700 MHz
Status: Populated, Enabled
Upgrade: Socket BGA1168
L1 Cache Handle: 0x003A
L2 Cache Handle: 0x003B
L3 Cache Handle: 0x003C
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Part Number: To Be Filled By O.E.M.
Core Count: 2
Core Enabled: 2
Thread Count: 4
Characteristics:
64-bit capable
Multi-Core
Hardware Thread
Execute Protection
Enhanced Virtualization
Power/Performance Control
Handle 0x0039, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1 Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 32 kB
Maximum Size: 32 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Data
Associativity: 8-way Set-associative
Handle 0x003A, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1 Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 32 kB
Maximum Size: 32 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Instruction
Associativity: 8-way Set-associative
Handle 0x003B, DMI type 7, 19 bytes
Cache Information
Socket Designation: L2 Cache
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Write Back
Location: Internal
Installed Size: 256 kB
Maximum Size: 256 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Unified
Associativity: 8-way Set-associative
Handle 0x003C, DMI type 7, 19 bytes
Cache Information
Socket Designation: L3 Cache
Configuration: Enabled, Not Socketed, Level 3
Operational Mode: Write Back
Location: Internal
Installed Size: 3072 kB
Maximum Size: 3072 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Unified
Associativity: 12-way Set-associative
Handle 0x003D, DMI type 127, 4 bytes
End Of Table
您可以看到我的 Ram 规格为：
- 制造商： Hynix
- 部件编号：HMT451S6BFR8A-PB
我在亚马逊上找到了两款类似的 RAM。
但我感到困惑的是方面：
第一个产品（精确零件编号）尺寸如下7.6 x 2.5 x 1 厘米。
但第二款产品（规格相同，但零件号略有不同）的尺寸如下10.4 x 8.9 x 1 厘米。
不同笔记本电脑的 RAM 尺寸是否不同？或者只有一个标准 RAM 尺寸（适用于笔记本电脑），而亚马逊列表中给出的尺寸是错误的！
答案1
聊天中讨论了这个问题。
笔记本电脑的 RAM 有一个标准尺寸，但 DDR3 有标准（1.5v）和低压（1.35v）两种。您的笔记本电脑将确实可以与低电压 (PC3L) 内存配合使用，这是最安全的选择。其他内存可能有效，也可能无效。
外形尺寸是完全相同的在大多数情况下，同一“类型”的不同内存系列（例如 SODIMM 与 DIMM）的区别在于缺口的位置，而不是大小和形状的重大变化
答案2
对于 DDR3/DDR3L 204 针 SODIMM，正确的尺寸应该是，
67.6 毫米 x 30 毫米
参考：
