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Questions tagged [sdram]

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-3
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0answers
25 views

How can I solve this error? [closed]

root@SystemAdmin:~# grgsm_livemon Traceback (most recent call last): File "/usr/local/bin/grgsm_livemon", line 33, in import osmosdr File "/usr/lib/python2.7/dist-packages/osmosdr/init.py", ...
-4
votes
1answer
69 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 ...
-3
votes
2answers
73 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 ...
2
votes
1answer
63 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 ...
-1
votes
2answers
476 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 ...
2
votes
0answers
8k views

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) ...
3
votes
1answer
851 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 ...
0
votes
1answer
63 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.
0
votes
1answer
152 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 . . . (...
3
votes
1answer
480 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 ...
0
votes
1answer
44 views

Samsung DDR3 RAM modules

Trying figure out the compatibility of the following RAM modules from Samsung: 4GB 2Rx8-10600S-09-10-F2 M471B5273CH0-CH9 AND 4GB 2Rx8 10600S-09-10-F3 M471B5273CH0-CH9 the 1st module is the ...
1
vote
1answer
101 views

Does Sdram have internal clock?

I mean, does the sdram always runs at FSB(Front System Bus) speed? What happens if the sdram has slower or faster clock than the FSB clock?Does it have clock multiplier or divider internal circuit for ...
1
vote
1answer
51 views

My RAMs shrunk with no apparent damage. 8gb to 4gb on both rams.

My computer recently started rebooting randomly, or whenever there's a bit of shock on the table. I thought probably one of the slots are loose. And I found on my OS that my 8 x 2 = 16GB RAM was ...
4
votes
2answers
256 views

why are RAM chips independent of whether my system is a 32bit system or 64 bit system?

I was recently out to buy a 4 GB RAM chip for my laptop, and all they asked me was whether I wanted DDR-3? When I specified that I had a 64 bit system, they said that it's not important, my question ...
6
votes
4answers
130k views

Difference between DDR3 SDRAM and DDR3 SODIMM for laptop

I have an ASUS A55VD-NS51 laptop with 6GB of RAM and I've been wanting to upgrade the memory for a while. I've finally decided to go through with it, but I am unsure as to whether to buy DDR3 SDRAM or ...
1
vote
1answer
1k views

Combining multiple DIMMs in one memory channel

Every electronics engeneer knows that connecting more chips on the same line increases its capasistence and, thus, degrades the frequency. So, memory speed must be dependent on the number of chips in ...
0
votes
2answers
2k views

Is Asus G51J compatible with 4GB DDR3 1066MHz SDRAM memories?

Is it possible to install one or more 4GB DDR3 1066MHz SDRAM in an Asus G51J? My Asus G51J has 8GB (4x2GB) and I'd like to upgrade to 4x4GB (16GB).
0
votes
2answers
1k views

Upgrading RAM in HP Compaq d530

I want to upgrade my hp compaq d530 from 1.2GB to 4GB of RAM. I look at the specs: http://h18000.www1.hp.com/products/quickspecs/11632_ca/11632_ca.html and saw that I could get up to 4GB of RAM that ...
2
votes
2answers
192 views

Can I buy an ECC SDRAM, or do I have to buy non-ECC SDRAM?

I'm helping a relative of mine with computer maintenance. She has a Compaq Presario 5000 (10yrs old) and it's slow. My first thing was to look at the memory -- it has only 512MB, but its maximum ...
1
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1answer
3k views

Is PC4200 DDR2 compatible with PC3200 DDR?

I picked up some DDR2 5300 that was on sale, and found that it would not physically fit on my motherboard. Now I've found some PC2 4200 RAM on the internet for the price I want. My motherboard takes ...
5
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2answers
3k views

Synchronous vs. Asynchronous DRAM

I have simple question, why do we use in computers today synchronous memory? Is there some advantage over asynchronous?
2
votes
0answers
233 views

Asus P4B SDRAM Upgrade

I have to fix a PC for a friend - and - bought RAM because 256 MB SDRAM PC133 is not enough for WinXP. I bought 2x 512 MB SDRAM PC133. If I insert one stick, it doesn't matter which one, the PC won't ...
1
vote
3answers
233 views

Which PC100 SDRAM is compatible with iMac?

I've recently acquired an aging iMac (G3/500 DV SE, Summer 2000) with its original 128Mb RAM out of a possible 1Gb. I'd like to replace the single 128Mb DIMM with 2 x 512Mb DIMMs. I know these need to ...