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<div class="moz-cite-prefix">On 01/29/2014 01:13 PM, Greg Clifton
wrote:<br>
</div>
<blockquote
cite="mid:CAJKW_Y43kWdw8Ho1TKOh4qc8RqvPTVOOMd_wQH1EePKFpPeCUw@mail.gmail.com"
type="cite">
<div dir="ltr">Maybe this is Off Topic, but it is computer
related. So here is the deal, I have a RFQ to quote on some
computers to go into a classified application and the customer
wants a Letter of Volatility. Now, obviously, the mass storage
will be removable, but they are concerned about any memory in
the system. I take this to include both volatile SDRAM (DDR3)
and any non-volatile memory such as the CMOS for the BIOS (is it
possible that some bot could be lurking there that could grab
data and send it out when the computer is turned on?).<br>
<div><br>
</div>
<div>My question is basically, how long does DDR3 maintain any
recoverable data once the power is turned off. I would assume
that power should be totally removed (as in unplugged from the
wall) so that there is not even 5V standby power, no?</div>
<div><br>
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<div>Comments and especially links to solid information would be
appreciated.</div>
<div><br>
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<div>Thanks in advance,</div>
<div>Greg Clifton</div>
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Dynamic memory is volatile. I suspect the data remains for a period
of time measured in milliseconds. Not nearly enough time to unplug
and get it to another system. Unless of course you buy non-volatile
DDR memory. <br>
<br>
One reference:
<a class="moz-txt-link-freetext" href="http://en.wikipedia.org/wiki/Dynamic_random-access_memory">http://en.wikipedia.org/wiki/Dynamic_random-access_memory</a>
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