cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
AwesomeMrT
Paper Tape
Posts: 4
Registered: ‎10-04-2018
Location: US
Views: 2,207
Message 11 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

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.

 

T.

WXR
Blue Screen Again
Posts: 2
Registered: ‎09-28-2018
Location: BE
Views: 2,041
Message 12 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

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.

yuhong
Punch Card
Posts: 11
Registered: ‎08-11-2010
Location: CA
Views: 1,932
Message 13 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

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.

Mr_Natural
Fanfold Paper
Posts: 10
Registered: ‎12-11-2018
Location: US
Views: 1,658
Message 14 of 39

Re: Thinkpad P52 / p72 with 128GB RAM


@Andy_Lenovo wrote:

 "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.


 

yuhong
Punch Card
Posts: 11
Registered: ‎08-11-2010
Location: CA
Views: 1,654
Message 15 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

They are to support the new 16Gbit DDR4 chips.

Mr_Natural
Fanfold Paper
Posts: 10
Registered: ‎12-11-2018
Location: US
Views: 1,651
Message 16 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

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.

yuhong
Punch Card
Posts: 11
Registered: ‎08-11-2010
Location: CA
Views: 1,632
Message 17 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

I mean 16Gbit chips, not 16GB DIMMs.

AwesomeMrT
Paper Tape
Posts: 4
Registered: ‎10-04-2018
Location: US
Views: 1,626
Message 18 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

Hi

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.

T. 

Mr_Natural
Fanfold Paper
Posts: 10
Registered: ‎12-11-2018
Location: US
Views: 1,615
Message 19 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

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.

gemini132
Punch Card
Posts: 52
Registered: ‎05-11-2016
Location: GB
Views: 1,287
Message 20 of 39

Re: Thinkpad P52 / p72 with 128GB RAM

Hi

 

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. 

 

Thanks, 

Check out current deals!


Shop current deals

Top Kudoed Authors