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Questions tagged [sdram]

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-1 votes
1 answer
132 views

confusion on clock speed of ram ddr2 6400, is it 400 MHZ or 800 MHZ ?,I found both answers on web

1-`DDR2-6400 is a designation used to indicate the peak bandwidth or data transfer rate of the memory module, not its clock speed. The "6400" in DDR2-6400 represents the theoretical maximum ...
zero cool's user avatar
0 votes
0 answers
37 views

What does (4G x 4) x 40 DRAM Composition mean?

I found two different specifications of memory modules on Samsung's official website, with the same Component Composition but different capacities. What do the three numbers in Component Composition ...
Frontier_Setter's user avatar
0 votes
0 answers
99 views

Will a DDR2 Memory Card Slot SATA to M.2 NGFF SSD B-Key Adapter Board work on a Gigabyte MA790X-UD4P with BIOS F10C

I built a computer using a Gigabyte MA790X-UD4P motherboard. I am using BIOS version F10C for the AMD Phenom II X6 1090T AM3 3.20 GHz CPU. The motherboard is designed for DDR2 Max 16GB Dual Channel ...
Ultientrpz's user avatar
0 votes
0 answers
279 views

Memory bank A failure - where is the culprit?

I have an ASRock 970 Extreme4 and AMD PhenomII processor. It's about 10 years old. There are four RAM slots: A1, A2, B1, B2. After some cleaning and then troubleshooting, if I install any RAM on ...
igorjrr's user avatar
  • 123
1 vote
2 answers
90 views

Can I add 6GB RAM of these modules to my existing RAM config? [closed]

After a crash of my PC I decided to reinstall the machine with Windows 10. Everything is running fine, but I notice that the 6GB is a bit too tight for all the software I'm running. Since this is an ...
Marlon's user avatar
  • 87
1 vote
1 answer
92 views

Upgrading a desktop with 32G server RAM fails

I have a PC based on Gigabyte GA7-87X-D3H motherboard. At present it is runn8ing with 2 x 4GB KVR16LN11/4, and everything works fine. (These run at 1600MHz). I bought (used) a 32GB DRAM upgrade. 1 x ...
danmcb's user avatar
  • 133
-4 votes
1 answer
86 views

How to find the appropriate RAM to upgrade? [closed]

I want to understand how to upgrade RAM on a computer, and everywhere I see something else to consider to upgrade. What is the full formula or algorithm? What decisions are derived from the mother ...
baruchiro's user avatar
  • 107
-2 votes
2 answers
585 views

Can I replace SODIMM SDRAM with SODIMM DRAM in my laptop?

I have an Asus Vivobook X540UP laptop with 4gb SDRAM and I want to replace or expand it but I don't know if it is compatible or if I can change it into DDR3 or DDR4 RAM. So, is it capable to be ...
Hope Less's user avatar
2 votes
1 answer
396 views

Installing a non even number of RAM sticks?

I am kind of a newbie in computer hardware and I have an old computer that has actually 3GB of RAM installed, splitted on 4 slot: slot1 has a 1GB RAM stick, slot2 has 512MB RAM stick, slot 3 has 1GB ...
Martin B.'s user avatar
-1 votes
2 answers
2k views

DDR3 DRAM geometry notation

When I'm reading the document 2Gb: x4, x8, x16 DDR3 SDRAM, it states three different types of DDR3 DRAM: MT41J512M4 – 64 Meg x 4 x 8 Banks MT41J256M8 – 32 Meg x 8 x 8 Banks MT41J128M16 – 16 Meg x ...
Mike's user avatar
  • 121
2 votes
1 answer
24k views

What is the difference between DIMM modules labelled as PC3L 12800S vs 12800U?

What is the difference between DIMM modules labelled as PC3L 12800S and PC3L 12800U, respectively? I guess they are both low-voltage PC3 modules but AFAIK PC3L modules run at 1.35V (instead of 1.5V) ...
Joul Dalk's user avatar
2 votes
1 answer
3k views

Are all DDR3L (1.35V) DIMMS safe to use in a computer system that uses DDR3 (1.5V) DIMMs?

The sales support of (the consumer/prosumer sales subsidiary of) a DRAM manufacturer answered a pre-sales question I made with (translated from an email in French): 1.35V Memory DIMMs are dual ...
fgrieu's user avatar
  • 796
0 votes
1 answer
99 views

DDR3 SDRAM specification understanding

What's difference between two memory modules 4GB 2Rx8 PC-10600S-09-10-D1 and 4GB 2Rx8 PC-10600S-09-10-F2. What the ending is stand for? I wonder if those modules could work together.
KennyPowers's user avatar
0 votes
1 answer
258 views

SDRAM addressing

How memory controller maps linear address given by CPU to SDRAM addressing scheme? I guess it is something like: 0x0 - rank 1, bank0, row 0, column 0 0x8 - rank 1, bank0, row 0, column 1 . . . (...
Mr. Vader's user avatar
3 votes
1 answer
756 views

DDR3 SDRAM compatibility: clock speed and timings

I want to upgrade my computer’s DDR3 SDRAM, replacing the single module that it currently has with newer ones. I am wondering if I must (or ought to) stick fairly strictly to the DDR3-1333 version ...
Picotin's user avatar
  • 64

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