Talk:DIMM

message: Hi.  Thanks for the explanation.  I still don't understand what is "dual" about the dim, nor do I understand what is "in line" about it.  Is the DIMM "dual" because it carries information on each side of a pin?  I am trying to understand what makes a DIMM, different than a SIMM.  Thanks for any help you can provide.
—Preceding unsigned comment added by 138.88.66.226 (talk • contribs) 0:20 UTC, 14 February 2005
:the major difference between simm and dimm is that simm can work on single line that is it can work  on one side of the ram whereas dimm which is dual in line memory module can work on both sides of the ram.
:sub:varun verma —Preceding unsigned comment added by 202.164.55.50  (talk • contribs) 08:30 UTC, 20 June 2005
hello my name is siby. i whish you include the speed of DIMM used in computer system.
I added an explination of the differences between DIMMs and SIMMs. And I think this article has enough information that we can remove the stub status. Any objections? --Pboyd04 20:42, 26 December 2005 (UTC)
thread_title:  Terminology 

message: Does anyone have references for the pin layouts and method of operation of the different types of DIMM?
It would certainly be useful to address this topics. JulesH 11:17, 13 October 2006 (UTC)
replies: text: you 're right. i have inserte the package gorm of 168 pin (13 cm and 2 holes), i'd like to see others version too. --83.190.155.53 17:10, 12 September 2007 (UTC)
thread_title:  Pin layout 

message: In the speed section can you clarify the difference between the speeds of DDR1 and DD2... is the strobe at the same speed as the data and twice the clock in both cases? ...
DDR1 ...have data but not the strobe at double the rate of the clock. i.e., PC1600 = 200 MHz data & strobe / 100 MHz clock for address and control 
....
DDR2 ... also (?) have data and data strobe frequencies at double the rate of the clock. i.e., PC2-3200 = 400 MHz data & strobe / 200 MHz clock for address and control 
....
Jnwisner 16:45, 14 July 2007 (UTC)
thread_title:  DDR1 and DDR2 Speed 

message: I miss a notice that most DIMM modules carry a small EEPROM chip that describeS specification of the module (capacity, timing, manufacturer, etc). And I miss a detail article about this EEPROM chip, that is accesible at I2C bus on most cases as I know. Information from the chip can be read with Z-CPU freeware under Windows, for example. BIOS process the information from EEPROM chip too to configure system to optimal values during computer boot.
Well, I found the article about SPD: Serial_Presence_Detect  —Preceding unsigned comment added by 89.24.36.147 (talk) 11:12, 27 January 2008 (UTC)
thread_title:  Memory module description in EEPROM chip 

message: Given that there's no definition of exactly what a MicroDIMM is, in what devices it is used, etc., I have a hard time understanding why MicroDIMM redirects here, other than the fact that the word is on the page.  Anyone care to add a description?  —Preceding unsigned comment added by 67.91.44.34 (talk) 15:53, 6 March 2008 (UTC)
thread_title:  MicroDIMM? 

message: What about DIMMs used e.g. in printers, set-top boxes, cisco router, etc. pp.? Not even mentioned here... I don't have any information about them but they occur mostly in powerpc appliances and are
equipped with sdrams as well as with normal drams.  —Preceding unsigned comment added by 79.196.219.73 (talk) 19:39, 22 June 2009 (UTC)
thread_title:  Other DIMMs than mainstream? 

message: I worked as atech for Computer City and ran into regular sized 144-pin DIMMs several times. They were basically mirrored 72-pin SIMMs, if you put them into the computer only half the RAM is available. I remember Canon desktop computers used those and the memory slots could interchange 72 and 144 pin variants. There was another brand, I think it was UMAX MAC clone (at that short time that Apple was licensing their OS). Apple had eprom DIMMs for Mac ROMs. Shjacks45 (talk) 20:02, 16 March 2012 (UTC)
thread_title:  Yes, other DIMMs 

message: Add a comparison table of ease of installation, e.g., in http://www.wikihow.com/Install-RAM
:Press gently but firmly until the clamps close completely. You may need to push the clamps in toward the chip, but do so very gently. If the chip does not fit, do not force it.
Perhaps other designs are easier for the user.... Jidanni (talk) 02:16, 17 July 2012 (UTC)
thread_title:  Ease of installation comparison 

message: I'm no expert, but this seems weird. Surely it should be quadruple the clock speed, and not just double? I don't feel certain enough to edit, but if someone else knows anything about it this should at least be clarified. — Preceding unsigned comment added by 192.76.8.18 (talk) 12:22, 25 August 25 2014 (UTC)
: Hello!  Actually, DDR(1), DDR2, DDR3 and DDR4 all perform at double the rate of their clocks.  The n in DDRn serves as a generation designation. — Dsimic (talk | contribs) 03:44, 26 August 2014 (UTC)
thread_title:  The description for DDR3 and DDR4 is basically the same. 

message: The term/concept "registered DIMM" is used and not explained.
"JEDEC decided that the terms "dual-sided," "double-sided," or "dual-banked" were not correct when applied to registered DIMMs."84.55.110.220 (talk) 08:55, 10 March 2015 (UTC)
replies: text: Hello!  Please see the  section above it contains a link to the Registered memory article, which explains the whole concept.  In Wikipedia articles, it is a common practice not to link the same term multiple times, so "registered" isn't linked more than once. — Dsimic (talk | contribs) 10:18, 10 March 2015 (UTC)
thread_title:  Registered DIMMs 

message: I don't know if it's me, but I can only see one notch on the bottom edge...
Also, just to clarify, the notch is the thing that makes it impossible to but it in the wrong way or to put in a module not designed for the slot at all, right?  — Preceding unsigned comment added by 84.55.110.220 (talk) 09:06, 10 March 2015 (UTC)
replies: text: Please make sure you're looking at the right image; :File:DIMMs.jpg (which is visible at the top of the article) shows a 168-pin SDRAM DIMM, which clearly has two notches.  You're right, the notch is the mechanical characteristic of a DIMM module's edge connector that makes it impossible to mismatch memory types. — Dsimic (talk | contribs) 10:24, 10 March 2015 (UTC)
thread_title:  Concerning section: 168-pin SDRAM 

message: Hi.  The height in mm is given.. but not width!  Seems like a basic and fundamental part of wiki page on a physical form factor.. any idea why the widths for the various options are not included?  The height and width exact measurements were the main 2 pieces of information sought on the page..  Thanks.
: Good point. I've just added the lengths for regular and SO DIMMs. Please make sure you add a new section at the bottom of the talk page. --Zac67 (talk) 09:38, 13 May 2021 (UTC)
thread_title:  Physical Dimensions 

message: :The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion. 
The result of the move request was: not moved to the requested title at this time, per the discussion below.  Dekimasuよ! 03:41, 31 March 2022 (UTC)
replies: text: DIMM →  – Over the past 25+ years dimm has become a noun for memory modules and is listed in dictionaries, no longer just an acronym describing individual JEDEC standardized memory modules KelleyCook (talk) 12:42, 23 March 2022 (UTC)

text: This is a contested technical request (permalink). GeoffreyT2000 (talk) 04:59, 24 March 2022 (UTC)
thread_title:  Requested move 24 March 2022 

message: Do you think it would be beneficial to add wording that "SO"-DIMM means "small outline dual inline memory module"? Nowhere in the article is it explained what the SO stands for.
I could add it but would it require references?
Aethalides (talk) 20:03, 25 November 2022 (UTC)
replies: text: Read again: A SO-DIMM (pronounced "so-dimm" , also spelled "SODIMM") or small outline DIMM... --Zac67 (talk) 20:14, 25 November 2022 (UTC)
thread_title:  SO-DIMM