LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 05-17-2008, 02:27 AM   #1
itz2000
Member
 
Registered: Jul 2005
Distribution: Fedora fc4, fc7, Mandrake 10.1, mandriva06, suse 9.1, Slackware 10.2, 11.0, 12.0,1,2 (Current)]
Posts: 732

Rep: Reputation: 30
How to check which speed your memory is?


i.e : I would like to check if my memory is CL 2.5 or CL 3, and what its frequency (that one I know, but just want to make sure : 400 Mhz).

Tried to look for that info on /proc, but couldn't find something

Thanks
 
Old 05-17-2008, 03:02 AM   #2
colucix
LQ Guru
 
Registered: Sep 2003
Location: Bologna
Distribution: CentOS 6.5 OpenSuSE 12.3
Posts: 10,509

Rep: Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978Reputation: 1978
You can try the perl script decode-dimms.pl which comes with lm-sensors. Maybe you have to load the kernel module eeprom, since this module populates /sys/bus/i2c/drivers/eeprom/ and decode-dimms.pl looks at the information here and deciphers them in a human readable format. Here is an excerpt from mine:
Code:
Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/0-0050
Guessing DIMM is in                             bank 1

---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62                   OK (0xBD)
# of bytes written to SDRAM EEPROM              128
Total number of bytes in EEPROM                 256
Fundamental Memory type                         DDR2 SDRAM
SPD Revision                                    1.1

---=== Memory Characteristics ===---
Maximum module speed                            930MHz (PC7400)
Size                                            512 MB
tCL-tRCD-tRP-tRAS                               5-4-4-12
Supported CAS Latencies                         5, 4, 3
Minimum Cycle Time (CAS 5)                      3.75 ns
Maximum Access Time (CAS 5)                     0.5 ns
Minimum Cycle Time (CAS 4)                      3.75 ns
Maximum Access Time (CAS 4)                     0.5 ns
Minimum Cycle Time (CAS 3)                      5 ns
Maximum Access Time (CAS 3)                     0.6 ns

Last edited by colucix; 05-17-2008 at 03:04 AM.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
tool to detect number of memory slots, memory module type, speed, and size stefanwolf Linux - Hardware 8 04-22-2013 09:48 AM
how do i check download speed? blastradius Linux - General 4 04-29-2008 05:14 PM
Check connection speed chii-chan Linux - Newbie 1 09-24-2003 12:29 PM
Help check speed of a website! DavidPhillips General 6 01-02-2003 07:50 PM
check internet speed not use X brabraa Linux - General 2 05-07-2002 08:14 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 02:08 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration