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Memory Trends: A Look Ahead

1/7/2015 11:00 AM EST
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DrFPGA
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Re: Mundane Connectors
DrFPGA   1/25/2015 7:39:00 PM
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Cool. Good to know some things still work!

DrQuine
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Re: Mundane Connectors
DrQuine   1/25/2015 4:05:45 PM
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@DrFPGA That is exactly the technique that I used to fix the memory problems on my Dell Latitude laptop computer. When the start-up diagnostics reported memory errors, I removed the memory chips and cleaned the contacts with an eraser. Now it is working fine.

DrFPGA
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Re: Mundane Connectors
DrFPGA   1/25/2015 11:47:06 AM
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I remember doing periodic 'clean-up' on one of my early homebuilt computers- taking peripheral cards out and using an eraser to clean off the connectors that plugged into the motherboard. Maybe something similar could be done on lap tops with memory expandion cards, etc...

 

Anyone know anything about doing something like this? Maybe if memory errors start being logged?

DrQuine
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Re: Mundane Connectors
DrQuine   1/25/2015 11:32:27 AM
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A rule of thumb is that connectors have a high incidence of failures compared with soldered or integrated components. The dilemma is that if all connectors are soldered then repair, replacement, maintenance is made much more difficult or impossible. We see that issue play out in consumer goods all the time: the battery is not replaceable. The problem comes when components have premature failures and the device is rendered useless.

DrFPGA
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Re: Mundane Connectors
DrFPGA   1/21/2015 10:26:01 AM
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Good point. It would help if errors were tracked and reported. Big data analysis could then zero in on common failure mechanisms....

DrQuine
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Mundane Connectors
DrQuine   1/17/2015 11:42:00 AM
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My experience on personal computers in a benign home environment is that memory failures increase through time. They are resolved by removing and reseating the memory chips. This suggests that long term connector corrosion / tarnishing is the primary cause of failure - one which would not be detected by exhaustive lab testing of chips before they are shipped.  What is being done to reduce the failures associated with the connectors?

FuturePlus
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More on DDR4
FuturePlus   1/9/2015 4:27:29 PM
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Great article! Critical Memory Performance Metrics for DDR4 based Systems is also being presented at DesignCon for folks wanted to go into more detail.  http://www.designcon.com/santaclara/scheduler/session/critical-memory-performance-metrics-for-ddr4-systems

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