[Arm-netbook] HDMI High-Frequency Layout: Recommendations--Taper
richard.wilbur at gmail.com
Sat Jan 6 14:28:45 GMT 2018
On Jan 5, 2018, at 23:49, Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
> On Sat, Jan 6, 2018 at 6:35 AM, Richard Wilbur <richard.wilbur at gmail.com> wrote:
>> So the trick is how to choose a faster chip and integrate successfully into a system running at lower speed than it is specified for?
> yyup. have to use the 1800mhz 1.5v x8 DDR3 IC, which fortunately
> happens to be down-compatible with 667mhz. the 1.35v DDR3L variant of
> the same chip is *not*.
I was doing a little reading about DDR3 and noticed the 1.35V DDR3L memory chips are happy talking/running with 1.5V DDR3 systems. So are you saying the 1800mhz 1.35v x8 DDR3L IC is not happy running at 667MHz? (Clock rate incompatibility versus voltage incompatibility?)
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