A dual inline memory module (DIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The gold pins on the bottom of the DIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a DIMM are not connected to each other.
184-pin DIMMs are used to provide DDR SDRAM memory for desktop computers. Standard 184-pin DIMMs are available in PC1600 DDR SDRAM, PC2100 DDR SDRAM, PC2700 DDR SDRAM, and PC3200 DDR SDRAM.
To use DDR memory, your system motherboard must have 184-pin DIMM slots and a DDR-enabled chipset. A DDR SDRAM DIMM will not fit into a standard SDRAM DIMM socket. (Information about which memory technology your system uses is included in the Crucial Memory Advisor™ tool.)
The number of black components on a 184-pin DIMM can vary, but it always has 92 pins on the front and 92 pins on the back, for a total of 184. 184-pin DIMMs are approximately 5.25 inches long and 1.25 inches high, though the heights can vary. While 184-pin DIMMs and 168-pin DIMMs are approximately the same size, 184-pin DIMMs have only one notch within the row of pins.
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Q:Can you advise if these modules are high or low density?
A:That module is low density (16 chips).
I am sorry for the issues that you have experienced with your upgrade. What is the make and model of the computer that you were installing the memory in? What is the full part number on the memory module themselves? They should read CT25664AA800.16F,etc. Thank you in advance for this information.
Thanks for your question. I have looked in to that system for you and it can support 2GB of memory in total and it has two memory slots. Each memory slot can support 1GB each. This means the 2x2GB memory modules would not work in your system.
We would need to see the part numbers of the memory modules you have received before we can confirm if they are compatible for you. When you receive the new memory modules it would be great if you could post on here with the part numbers that are listed on the memory modules. This way we can check if they are the correct speed and type for your computer. The part numbers will be printed on a sticker on the side of your memory module.
If you do ever need any help, please feel free to ask in here or to contact our customer service team directly.
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In most cases the RAM is the same, but there are cases where it is not. It can really depend on the system. It's always best to purchase RAM that is guaranteed to be compatible with your system.
Please let us know if there is anything else we can help you with.
Thanks for contacting us today. They usually work together just fine and the higher speed module just down clocks to the 1333mhz. What is the make and model of the computer you will be installing the memory in? I would be happy to check the compatibility for you.
I purchased CT51264BF160BJ new from Amazon few months ago which seemed to have normal package/sticker and runs okay.
However, MemTest86 identifies it as Super Talent CT51264BF160BJ.M8F in the PC (JEDEC SPD 1.0).
Does this make sense - was there some temporary issue in manufacturing week 7 of 2014 where Crucial programmed Super Talent's info (module rev x4444, mfg loc 5)?
My more recent purchase of CT51264BF160BJ from NewEgg shows SPD 1.1 with reasonable Crucial info.
Both SODIMMs have the same number of micron chips but the recent chips are slightly smaller.