10-13-2018 04:20 AM
Tina, No....I could not get it to work beyond 64GB Ram....I returned the unit and am awaiting the newly ordered 128GB ram which is now available on the USA configurable options.
10-28-2018 05:15 PM - edited 10-28-2018 05:17 PM
In a 128GB configuration, could you please advise if 2x32GB DIMMs must be Non-ECC (while the other 2x32GB are/can be ECC) OR ALL of the 4 DIMMs (4x32GB) are.can be fully supported/enabled with ECC?
For this system, and to my understanding, anything above 64GB must be non-ECC (hence, limitation by Intel certification).
Mixing ECC and non-ECC "works", but such config is not best practice and will not operate optimally.
I'm in the process of ordering a maxed-out P72. This info has an impact on whether, or not, I go for 128GB.
Thanking your feedback.
11-08-2018 12:32 AM
FYI, to be more precise, the "16GB DIMMs" refer to 16GB DDR3 SO-DIMMs based on 8Gbit DDR3 that is uncommon. The 32GB DIMMs of course refers to 32GB DDR4 SO-DIMMs based on the new 16Gbit DDR4.
12-11-2018 04:59 PM
"We worked with intel to qualify the new 32GB DIMMs on our new P52, P72 and P1 products. We had to make some slight changes to the memory controller but in the end we were able to get the 32GB DIMMs to pass all our quality and engineering tests."
What exactly are these "slight changes"? So does this mean that only 32gb ram modules bought from Lenovo will work properly? That's what it sounds like.
12-11-2018 05:18 PM
Don't understand your reply. This thread is about 128gb ram which obviously cannot be achieved with 16gb chips. This guy Andy is saying that 4 32gb chips work but he says they had to alter them.
12-11-2018 06:21 PM
I ended up returning the So Dimm and laptop to lenovo and bought the laptop again with 128GB pre-installed since it would not recognize anything (even their correct ram) beyond 64GB. I'm pretty sure it was a bios issue. Zero useful help from lenovo tech support or sales reps.
So was essier to just do the above for me.
12-11-2018 08:49 PM
I notice that Lenovo offers a 64gb option with only 2 32gb modules, presumably so that you could upgrade to more later. So does that mean the memory controller on these models have these "slight changes" in preparation for this upgrade or what? Strange that nobody seems to know. Also, unless I'm mistaken Samsung and others are now making 64gb single modules, so can you use 4 of those if you have these "slight changes"? Of course you are right it's easier to just order the max config from them initially, but with Lenovo ram isn't exactly cheap and can double the price of the machine. But if you don't spring for it up front, can you ever make an upgrade work later? It's ridiculous that Lenovo themselves can't or won't answer this question. They state the max ram is 128gb but only from them up front because it has to be modified? If that's the case just say so.
01-30-2019 08:53 AM
Can any of the P52 owners confirm if it's possible to install 128GB of ram on the P51 given the fact the previous model has the same 4 module slots as the P52 and considering now the Samsung 32GB single module are available.
I've checked with lenovo support on twitter about this but they don't seem to know, instead they referred me to the specs sheet for the P51 that states 64GB is the max on this model, but in theory it should work.
But, I wanted to confirm this first as I am considering upgrade my P51 to 128GB.