by Barbara Aichinger | Feb 26, 2018 | DDR4 Memory, Medical Device Safety
FAST SODIMMS for DDR4 are here! Traditionally SODIMMs (Small Outline DIMM) have been used in the mobile environment because of their smaller size. For DDR3 SODIMMs did not have ECC so they were not even considered for Servers. When DDR4 was created there was discussions within JEDEC for SODIMMs to be used in more robust environments so ECC was added to the specification. However, due to the smaller mechanical size of an SODIMM, memory capacity is limited. Here at FuturePlus we make sure all our DDR Validation Tools work in a variety of systems and at all supported speeds. The best way to do that is to validate our tools in as many platforms as we can get our hands on. Which leads me to this little baby! Yes this ASRock is water cooled! We had some fun setting it up and adjusting the mood lights it comes with to make the water look pretty. It has 4 SODIMM channels and each channel is a single slot. In addition these SODIMMs are vertically mounted. Those of you who are true SODIMM fans know that in most cases the SODIMMs are mounted on an angle so as to reduce vertical height. So how does this memory bus look? ASROCK SODIMM 3200MT/s: Measurement made with a FuturePlus Systems FS2836 and a Keysight Logic Analyzer Take a look at those EYES! This is a burst scan of both the read data and write data. You can see that the eyes allow for ample margin for signal capture. This Asrock system looks, well….rock solid! ASROCK SODIMM 3200MT/s: Measurement made with a FuturePlus Systems...
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