Questions tagged [ddr]
Double Data Rate (DDR) RAM is a type of DRAM (dynamic random-access memory) used in computers.
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Determine max installable RAM for a CPU that supports but no official motherboard support
I have a Lenovo Ideapad-520IKB laptop with a single 16GB memory SODIMM module and no soldered memory on motherboard. I want to upgrade it to 32GB (or 24GB if 32 not possible)
When I searched Lenovo ...
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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 ...
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Can I upgrade 256x8 sodimm ram with 2Rx8 one? [closed]
My old laptop has only one slot for ram. Current ram is SODIMM DDR3 4GB 1333 256x8 CL9 (see attached picture). I want to upgrade ram to 8GB but did not find DDR3 8GB 1333 256x8 CL9. There are a lot of ...
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RAM timing/frequency issues, impossible to enable XMP profile
The problem
My RAM is supposed to run in XMP 2.0 at 1600MHz with the following timings
CAS Latency: 16
RAS to CAS: 18
RAS precharge: 18
tRAS: 38
TRC: 56
As you can see there that's the expected ...
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DDR4 SODIMM what does the V lettering mean after the speed? E.g PC4-2666V
I'm normally familar with the lettering of RAM sticks but I'm a little stuck on what V means. For exampe I know 2400T is the T suffix at the end means it meets a specific JEDEC standard. A 2400T ...
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DDRx incompatibility [duplicate]
My question is - why I can't use ddr2 and ddr3 memory at the same time? What exactly makes them "incompatible"? Thank you.
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How to tell if a laptop is utilizing LPDDR5 Link-ECC functionality?
JEDEC introduces two kinds of ECC to LPDDR5, that's inline ECC and link ECC. [1] However, link ECC, which is used to protect data through transmitting, is optional.[2]. My question is, how could we ...
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how to read value of parameter for any ddr4 module?
Kindly someone educate me how to interpret any data data sheet for memory.
I am refering to any data sheet for a ddr4 chip for example - https://www.3d-plus.com/data/doc/products/references/...
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What does the "S" suffix for RAM modules mean?
While looking for a RAM upgrade, I found two offers which apparently only differ in the "S" suffix of the type, and in the price:
"32 GB RAM, 1 Modul, DDR4, 3200 MHz (PC4-25600), SO-...
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Why is DDR5 ram addresses 31-bit (and not using a potential last 32-nd bit? )
I watched this video on YouTube, and it mentions DDR5 is addressed using 31 bits. 5 bits for the bank, 16 bits for the row, and 10 bits for the column. I feel like a 32-bit address would "fit&...
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Why does my HP EliteBook 8440p doesn't turn on with 2 new DDR3 4gb RAMs?
My HP EliteBook 8440p had 2 DDR3 RAM of 2GB each, so 4 GB total.
This is my DxDiag info:
The specs of these 2 RAM are:
I wanted to change them to 2 4gb RAMs (so 8GB, the max supported ram for this ...
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Ram tests do not match with Advertised Ram speed
I have 32 GB of Ram on a Windows 11 Machine.4 *8 GB
Per My motherboard Manual :
Supported Ram:4 x DIMM, Max. 128GB, DDR4 4400(O.C.)/4000(O.C.)/3866(O.C.)/3600
(O.C.)/3466(O.C.)/3200/3000/2800/2666/...
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After I upgraded to DDR4-3200 32 GB on a MAG X570 MSI, I'm getting a double beep... but everything works fine
This is a strange situation for me.
I'm building a machine for my wife, and since it uses a compatible motherboard (identical except MPG instead of MAG), I'm also passing my old DDR4-2400 to her and ...
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3600MHz memory doesn't work to the spec
I'm trying to configure AMD R9 Radeon branded memory kit (model R9S432G3606U2K) to work at it's specified frequency, which is 3600. The motherboard is Asus Prime B550-Plus and, according to it's specs,...
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Adding new DIMM slot in laptop by soldering
I have laptop Acer Aspire One 722. Specification says that it has 2 DIMM slots, but when I opened it, I found it has only one, and there is a place for second one. I'm just interested, could I add ...
