Tag Archives: SODIMM

iMac 2019 Memory configuration

The 27 inch iMac for 2019 (5K, 2019) introduced DDR4 memory at the 2666 MHz speed, and an upper limit of 128 GB RAM. DDR4-2666 (PC4-21300) non ECC SODIMMs. Apple originally stated a 64 GB limit, however 32 GB modules … Continue reading

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Glossary of memory terms and definitions

Types of RAM: Memory Terminology: This is a simplified overview of RAM terms and definitions 100 pin memory Used primarily in laser printers, 100 pin SIMM memory is not compatible with other formats. CAS Latency: To oversimplify a complex discussion, … Continue reading

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Q. How do I install RAM in a PC Notebook?

The RAM memory in most notebook computers is user-upgradeable. Almost all notebook machines use SODIMMs (Small Outline Dual Inline Memory Modules). Part of the trick is to discover where the memory modules are located in a notebook machine. The best … Continue reading

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Q. How do I install RAM in a Mac?

Memory in most Macintoshes is user-upgradeable. The bottom of this post has links to the Apple instructions for specific models. ┬áHere are general instructions for installation on modern Macs. In machines with SODIMMs (notebooks, MacMinis and iMacs), there are two … Continue reading

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Q. What Memory and Drives fit in my iMac PowerPC?

The Apple iMac has shipped in several versions. ┬áThe earliest ones ran the PowerPC processors, G3, G4 and G5. Lists of RAM and drive compatibility for all Macs Model / Identifier CPU/ Speed/ Screen/ Date/ Designation RAM Type & Speed … Continue reading

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