Tag Archives: RAM

Q. Why do I have to install my RAM modules in pairs?

Posted on March 1, 2020 by quill

Q. Why do I have to install my computer memory modules in pairs? A. Normally a motherboard addresses memory through a 64 bit data channel. When a computer motherboard is designed to use Dual Channel memory access, it can address … Continue reading →

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Q. Why can you sometimes upgrade RAM to more than the manufacturer suggested?

Posted on February 21, 2020 by quill

1. How is that I can install more memory on my Apple machine than Apple supports? A. When manufacturers release a machine, the manuals are written with the available information at that time – for example, a machine may be … Continue reading →

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Q. Can I put Quad Channel RAM into a Dual Channel machine?

Posted on February 14, 2020 by quill

A. Single or dual or quad channel memory access doesn’t have anything to do with the individual RAM modules — an individual RAM DIMM is the same whether it is sold alone, or in a package of 2 or 4 … Continue reading →

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Q: What does “swap memory” do that physical RAM memory in a computer can’t do?

Posted on December 17, 2019 by quill

A: It can be bigger. Swap files on the computer’s hard drive are there for when you don’t have enough physical RAM, so the operating systems swaps data out of RAM space and writes a file on storage, to free … Continue reading →

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Q: What old generations of RAM memory are the same speed as drives?

Posted on December 12, 2019 by quill

A: RAM, of any generation, has always been much faster than hard drives or SSD drives, and RAM continues to be faster. There are several reasons. Bus access: RAM is on a bus that is much ‘closer’ to the CPU … Continue reading →

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DDR4 memory makes its debut

Posted on April 28, 2015 by quill

DDR4 memory starts shipping for desktop machines and servers. Through the years, the DDR Memory standard has been updated to DDR2, DDR3 and now DDR4 (JEDEC Satandard JESD79-4). It’s worthwhile to note that despite sharing the DDR name, each of these … Continue reading →

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Q. What memory and hard drives fit my iBook G3/G4?

Posted on March 31, 2012 by quill

There are several models of iBook, the G3 models use PC66 or PC100 memory and the G4 models use DDR memory. Below is a list of all models. iBooks take 2.5″ IDE hard drives up to 120 GB in capacity. … Continue reading →

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Q. What RAM memory and Hard drives fit my Apple PowerMac G5?

Posted on February 20, 2012 by quill

There have been two major models of PowerMac G5, the change over from PCI-X to PCI-e slots, and from Dual processors to Dual-Core single processor was made in October 2005. With this change, PCI and PCI-X interface cards from the … Continue reading →

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Q. What RAM memory and hard drives fit my Mac PowerBook G4?

Posted on February 20, 2012 by quill

The Powerbook G4 was a revolutionary notebook when it was released, having an all-metal casing manufactured with a Titanium alloy. In Early 2003 Apple switched to an aluminum allow for the case, and introduced 12″ and 17″ models. At the … Continue reading →

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Q. Can I use faster RAM with the slower RAM I have?

Posted on May 17, 2011 by quill

For example, your machine has PC2-4200 (533 MHz) DDR2 memory in it, and you have another module of PC2-5300 (667 MHz). Can you use it? Your motherboard’s memory speed will always be set to the speed of the slowest module … Continue reading →

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Q. What will adding more RAM to my computer do?

Posted on May 10, 2011 by quill

The key to computer performance is having enough RAM memory. RAM doesn’t speed a machine up, however. Rather, adding RAM removes a barrier to speed.  It’s like your car – taking your foot off the brake doesn’t speed it up, … Continue reading →

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