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I want to know if SDRAM and DDR@ are the same thing?

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No SDRAM is single data ram, with 2 slots in the bottom and DDR is double data ram, with one slot at the bottom.

Posted on Aug 17, 2008

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They are not the same type of RAM SDRAM stands for Synchronous Dynamic Random Access Memory. DDR is short for "DDR SDRAM" and stands for Double Data Rate. Nowadays to avoid misunderstandings SDRAM is often specified as SDR SDRAM and SDR stands for Single Data Rate by analogy with DDR. Therefore, the main difference between SDR and DDR memory the doubled speed: DDR can transfer data at roughly twice the speed of SDRAM. For example, PC133 SDRAM runs at 133 Mhz, while 133 Mhz DDR effectively runs at 133 Mhz x 2 = 266 Mhz. SDRAM has 168 pins and two notches at the connector, which prevents it from being used in a DDR SDRAM motherboard and vice versa. It comes mainly in PC66, PC100 and PC133; the bus speeds of the RAM in MHz. DDR SDRAM has 184 pins and a single notch at the connector. It comes in speeds of PC1600 (166 MHz), PC1800 (200 MHz), PC2100 (266 MHz), PC2700 (333 MHz), PC3200 (400 MHz), and PC4400 (550 Mhz). The numbers represent the theoretical maximum bandwidth of the DDR SDRAM in Megabytes per second (MB/s). For example, PC2100 has a theoretical maximum bandwidth of 2100 MB/s. Hope that helps..........

Posted on Aug 17, 2008

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SOURCE: Hello, I have an used Compaq Presario 5000 with 1

SDRAM 168 pin non-ecc.

http://pcworld.about.com/news/Aug212001id57667.htm

Posted on Jan 13, 2010

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SOURCE: what type of RAM do I need?

This should be easy for you , just et this RAM specs for your computer this is a DDR with a Module Speed of PC3200, DDR400.

Posted on Jun 17, 2010

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Posted on Jan 02, 2017

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I need to buy memory for my computer its an emachines desktop model# T3410 512 MB DDR SDRAM and I dont know what to get


in DDR ram there is some models like ddr and ddr2 and another new model is DDR3. First you check what is your ram related to. for that in some pcs bios option system information the details are there. For that at the time of booting before windows logo press the button whatever is showing to enter setup. and check otherwise remove your ram and take that to a computer shop and take a new ram with same model.

And one more thing is you have to check your clock speed of your ram. Remove your ram from pc and check if any information is there on ram

Jun 24, 2010 | E-Machines eMachines Desktop PC

1 Answer

What type of RAM do I need?


This should be easy for you , just et this RAM specs for your computer this is a DDR with a Module Speed of PC3200, DDR400.

Jun 17, 2010 | MEDIONM 3 COMPOSER 5100 INTEL- (20023321)...

1 Answer

Switching Between SDRAM & DDR Slots


All of those jumpers are either currently on or off. If you are switching RAM from SDRAM to DDR, you need to swap all of them. There appears to be 11 sets of jumpers. They are basically like 10 normal jumpers all stuck together as one piece. Move them all over, and switch your RAM, and you're set!

May 07, 2009 | Computers & Internet

1 Answer

How to install additional 256 MB memory


You simply just push the memory into the DIMM socket on the motherboard. You need to use DDR SDRAM but should check what your I/O bus speed is set at. They make 4 different types of DDR SDRAM. They are DDR-200 (PC1600). DDR-266 (PC2100). DDR-333 (PC2700) and DDR-400 (PC3200). The following links should help you out:
http://www.tech-faq.com/unbuffered-memory.shtml

http://en.wikipedia.org/wiki/DDR_SDRAM

Mar 20, 2009 | EliteGroup P4VMM2 Motherboard

2 Answers

Can i use DDR 2 RAM for U8668d ver. 6.1 motherboard of 1GB


your motherboard uses DDR1 SDRAM PC2100 max. as stated on their website:
http://www.biostar-usa.com/mbdetails.asp?model=u8668+d
you cannont put DDR2, but you can expand up to 2GB

Hope this helps
Alex
www.CAS411.com

Mar 17, 2009 | Biostar U8668D (802700113338) Motherboard

1 Answer

Dell Demension 4600 motherboard memory


From the Dell specifications page for Dimension 4600:
Memory
Architecture
Dual Channel DDR SDRAM
Memory connectors
Four
Memory capacities
128-, 256-, 512-MB or 1-GB
Minimum memory
128-MB DDR SDRAM
NOTE: Between 32 and 64 MB of system memory may be allocated to support graphics, depending on system memory size and other factors.
Maximum memory
4 GB
Memory type
PC2700 (333-MHz) or PC3200 (400-MHz) DDR SDRAM
(non-ECC)

Mar 09, 2009 | Dell (2336V) Motherboard

3 Answers

IS DDR SDRAM IS DDR II RAM OR DDR


No. DDR replaced the SD in RAM so SDRAM and DDR RAM are two completely different things but each ram type has its own frequency hence you get SDRAM 100(mhz) and SDRAM 133(Mhz) just like you get DDR 1 RAM at 266(mhz) and 400(mhz) and DDR 2 RAM at 533(mhz) and 800(mhz). Therefore as you can see how these things differ, but if your mboard takes SDRAM that it can take and frequency of SDRAM but you must ensure that all the frequencies of all your RAM modules in all your slots correspond otherwise you will have problems, meaning that if you decide to use 133mhz RAM then all your RAM modules that you use must be the same. Let me know how you go. thanks

regards

Feb 06, 2008 | Intel D101GGC Motherboard

3 Answers

ECS M925 1.0 sdramm to ddr memory


The normal DDR Ram is supported..It doesn't support DDR2..

Nov 03, 2007 | PC Chips (M925G) Motherboard

3 Answers

Missing part


Hi, Sorry to tell you but this motherboard supports ONLY SDRAM memory. There is no way that a DDR memory will fit into this motherboard. What you can do is add another SDRAM memory for better performance.

Apr 28, 2007 | Syntax SV266A SKA KT266A Motherboard

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