I bought a single 8Gb stick of this for my build - it says 2400 but is running at 1200. Why? Is it only 2400 if I run 2 sticks?

Modern DRAM modules support double data rate (DDR) transfers, meaning that although they function at a given clock speed, they transfer data during both the rise and fall of a CPU clock cycle, allowing for double the data transfers their native speed, or frequency, would suggest. Some diagnostic or system information software does not express this clearly, only reflecting the modules' frequency in megahertz (MHz), making such feedback suggest that your parts are only running at half their possible speed. For example, DDR3-1600 supports 1600 megatransfers per second (MT/s) due to its nature as DDR memory, but runs at 800 MHz.

What is the difference between crucial ct8g4dfd824a and crucial ct8g4dfs824a?

Thanks for your question. CT8G4DFD824A is a dual ranked part and CT8G4DFS824A is a single ranked part. More information on this can be found here: http://forums.crucial.com/t5/Crucial-memory-for-PC-systems/What-is-a-memory-Rank/ta-p/126346

If I add a 8gb for my Dell i5675 will it be compatible with the 8gb thats already in my pc?

Thank you for contacting Crucial and for your question. The part number that you provided is 100% compatible with your system. That being said, we can guarantee that our memory will work with your computer, but we have no way to guarantee that it will work with what is currently installed in the system. I can tell you that most consumer systems out there can mix different brands of memory without running into any issues.

Crucial 8gb single ddr4 2400 mt/s (pc4-19200) dr x8 unbuffered dimm 288-pin memory - ct8g4dfd824a can it compatible with msi gaming h110?

Yes, CT8G4DFD824A is compatible with the MSI H110M GAMING.

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Specifications

ASIN	B019FRCQAK
Additional Features	nv: AMD Validation^AMD Ryzen \| Company Program^Crucial \| Component Configuration^x8 based \| DDR Timings^CL=17 \| DIMM Type^Unbuffered \| Density^32GB Kit (16GBx2) \| Error Checking^NON-ECC \| Intel-Validated^Y \| Megabytes^32768 \| Memory Type^DDR4 PC4-19200 \| Module Rank^Dual Ranked \| Package^288-pin DIMM \| Platform Category^DDR4 \| Speed^DDR4-2400 \| Voltage^1.2V \| VolumeDiscountBucket^LOW
Best Sellers Rank	#372 in Computer Memory
Brand	Crucial
Built-In Media	DDR4 Unbuffered UDIMM Internal Memory DRAM
Column Address Strobe Latency	CL17
Compatible Devices	Desktop
Computer Memory Size	32 GB
Customer Reviews	4.6 out of 5 stars 484 Reviews
Data Transfer Rate	2400 MHz
Form Factor	DIMM
Global Trade Identification Number	00649528773517
Item Type Name	Crucial 32GB Kit (16GBx2) DDR4 2400 MT/s (PC4-19200) DR x8 Unbuffered DIMM 288-Pin Memory - CT2K16G4DFD824A
Item Weight	0.04 Pounds
Manufacturer	Crucial Technology
Memory Speed	2400 MHz
Model Name	CT2K16G4SFD824A
Number of Pins	288
RAM Memory Technology	DRAM
RAM Size	32 GB
Special Feature	nv: AMD Validation^AMD Ryzen \| Company Program^Crucial \| Component Configuration^x8 based \| DDR Timings^CL=17 \| DIMM Type^Unbuffered \| Density^32GB Kit (16GBx2) \| Error Checking^NON-ECC \| Intel-Validated^Y \| Megabytes^32768 \| Memory Type^DDR4 PC4-19200 \| Module Rank^Dual Ranked \| Package^288-pin DIMM \| Platform Category^DDR4 \| Speed^DDR4-2400 \| Voltage^1.2V \| VolumeDiscountBucket^LOW Special Feature nv: AMD Validation^AMD Ryzen \| Company Program^Crucial \| Component Configuration^x8 based \| DDR Timings^CL=17 \| DIMM Type^Unbuffered \| Density^32GB Kit (16GBx2) \| Error Checking^NON-ECC \| Intel-Validated^Y \| Megabytes^32768 \| Memory Type^DDR4 PC4-19200 \| Module Rank^Dual Ranked \| Package^288-pin DIMM \| Platform Category^DDR4 \| Speed^DDR4-2400 \| Voltage^1.2V \| VolumeDiscountBucket^LOW See more
UPC	649528773517
Unit Count	1.0 Count
Voltage	1.2 Volts
Warranty Description	Limited lifetime warranty

Reviews

M**B

Value of Money

Good product and value of moeny

18.11.2022

I**.

As described

9.08.2022

R**D

Good quality

Working fine

11.06.2021

R**S

Good

For budget buying.

27.12.2022

A**.

👌

Perfect

12.12.2020

S**

Total 128GB shows but usable only 64GB

These memory modules work very well but check if your motherboard is compatible to run all 4 of them together and get full capacity. Mine shows only 64GB usable even though it shows 128 GB in total because it's a very entry-level motherboard with i7 processor. Good ram chips, great value for what I paid.

21.12.2020

K**N

Works Perfectly

Perfect itwould be so cool if it had a little bit of gaming Design!!!

8.02.2021

M**F

Incorrect linking of hardware

No. This does not support dell t30

9.01.2020

Crucial 32GB Kit (16GBx2), 288-pin DIMM, DDR4 PC4-19200,

Details

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