I am thinking about upgrading my laptop's ram.How can I get to know the number of pins on my ram without opening my laptop? I ran this command sudo dmidecode --type memory and got following info:
Handle 0x0019, DMI type 17, 27 bytes
Memory Device Array Handle: 0x0017 Error Information Handle: 0x001A Total Width: 64 bits Data Width: 64 bits Size: 1024 MB Form Factor: SODIMM Set: None Locator: DIMM0 Bank Locator: BANK 0 Type: DDR2 Type Detail: Synchronous Speed: 667 MHz Manufacturer: AD00000000000000 Serial Number: 04008104 Asset Tag: Unknown Part Number: 040404040404040404040404040404040404Can anyone help?
23 Answers
From this prompt, the key pieces of information to look at are:
- Location: DIMM0
- Size: 1024MB
- Form Factor: SODIMM
- Type: DDR2
- Speed: 667MHz
The prompt tells you that you have a SODIMM module with a frequency of *667*MHz occupying the first slot in your motherboard. Since the speed is 667MHz, that likely coincides with the maximum support memory clock frequency for your motherboard.
The # of pins in a DDR2 SODIMM module is 200. For questions like this, I always consult with Google. All you have to do is plug in the relevant information (i.e type, form factor).
Note: check how many SODIMM slots are available, and the maximum memory supported by your OS, and motherboard BEFORE you purchase.
Tip: If you're using a 32-bit flavour of *nix, you're going to be limited to 4GB of RAM.
1I don't know how to do this in Ubuntu. But you can go to and enter your computer information and it will tell you.
Open terminal and Type.
sudo lshw
dmidecode -q | less (Last one No need to root access)
