Re: Getting lucky mixing DDR modules?
I'm not saying ranks didn't exist. I'm saying it's a different issue. Ranks have to do with the arrangement of the data.
Density is a physical feature of the memory chip itself. Older Intel computers require older x64 memory chips. AMD and newer Intel computers can run either x128, or x64.
Sometimes this makes a huge difference in price and availability of some modules.
AMD stuck with DDR2 longer than Intel and accessed newer memory chip technology that Intel computers couldn't run. This carried on into earlier DDR3 computers.
This is the issue with AMD only RAM (X128 density), and Dell compatible RAM (x64 density) modules for older computers.
This is listed on Crucial memory modules and can help you get it right the first time on older Intel and especially Dell computers. I think Dell just refused to update their BIOS to run newer modules.
On this page there is a chart showing different density, and ranks on old DDR Server RAM 1GB modules. The chart wouldn't copy intact to this post so just the link.
https://en.wikipedia.org/wiki/DDR_SDRAM
I'm not saying ranks didn't exist. I'm saying it's a different issue. Ranks have to do with the arrangement of the data.
Density is a physical feature of the memory chip itself. Older Intel computers require older x64 memory chips. AMD and newer Intel computers can run either x128, or x64.
Sometimes this makes a huge difference in price and availability of some modules.
AMD stuck with DDR2 longer than Intel and accessed newer memory chip technology that Intel computers couldn't run. This carried on into earlier DDR3 computers.
This is the issue with AMD only RAM (X128 density), and Dell compatible RAM (x64 density) modules for older computers.
This is listed on Crucial memory modules and can help you get it right the first time on older Intel and especially Dell computers. I think Dell just refused to update their BIOS to run newer modules.
On this page there is a chart showing different density, and ranks on old DDR Server RAM 1GB modules. The chart wouldn't copy intact to this post so just the link.
https://en.wikipedia.org/wiki/DDR_SDRAM
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