08-15-2016 11:56 AM - edited 08-16-2016 12:43 PM
I've read in several posts of this forum that there is no compatible DDR4 2133MHZ ECC RAM from third parties that would work in a Lenovo ThinkPad wit Xeon processor. Only option, aside from OEM Samsung modules, would be to use 2400MHZ Crucial ECC RAM in the slots #2 and #4 and use original 2133MHZ module in slot #3.
However, while lookng around for alternatives I found that newegg carries the following:
Black Diamond Memory 16GB 260-Pin DDR4 SO-DIMM ECC Unbuffered DDR4 2133 (PC4 17000) Server Memory Model BD16G2133MQO25
Brand: Black Diamond Memory
Type: 260-Pin DDR4 SO-DIMM
Speed: DDR4 2133 (PC4 17000)
Features: Black Diamond Memory 16GB (2Rx8) DDR4 2133 (PC4 17000) ECC Unbuffered SODIMM Memory 260-pin
Wouldn't this one work? Am I missing something?
08-20-2016 12:54 PM
I've been tracking this topic on this forum since January. When I looked up the specs for this Black Diamond memory, there were 2 characteristics which I was not able to find: the voltage and the latency. You want the voltage to be 1.2 volts and the latency to be 15 nanoseconds. Maybe this Black Diamond memory has these characteristics, but I wasn't able to verify it quickly. However, there is another alternative. Although it was out of stock earlier this year, the following spec-compatible memory appears to be available now - at the same price. Check out this Transcend memory which is manufactured in Taiwan: https://www.cdw.com/shop/products/Transcend-DDR4-16-GB-SO-DIMM-260-pin/3819776.aspx
08-20-2016 01:24 PM
After posting my reply above, I just read an unfavourable review on this Transcend ECC memory from someone who bought it for their Lenovo Xeon laptop - they said the laptop wouldn't start up. I am not aware of any other user reviews regarding this Transcend memory.