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Sorry friend, this is the case. There must only be one slot. Interesting note re: RAM choices ... if you select the i5-5200U CPU on the Lenovo US website then

by ayejay 12y ago

Sorry friend, this is the case. There must only be one slot. Interesting note re: RAM choices ... if you select the i5-5200U CPU on the Lenovo US website then you are allocated 4GB of RAM and have no option to select 8GB. The mid-range CPU (i5-5300U) allows you to select either 4GB or 8GB. Finally, if you select the i7-5600U then you are allocated 8GB and can't select 4GB.

rayiner 12y ago
There's no slots. Memory is soldered.
- pierrec 12y ago
  I wonder if it's technically useful or if it's a commercial move. I have an Ideapad Y470 (a model from 3 years ago), and I got the impression they tried to limit the RAM below what the hardware could run, maybe because they want to segment the market in a certain way. The customization page on their website only allowed 8GB of memory and the user manual explicitly stated that the maximum RAM was 8GB. I bought 16GB after reading users reporting that it worked fine, and I can confirm: it works fine. I push it to the limit all the time. Then again, it might just be that new RAM chips came out after the laptop did, and I might just be conspiracy-theorizing.
  - rayiner 12y ago
    This is the logic board on the 2014 15" rMBP: https://d3nevzfk7ii3be.cloudfront.net/igi/PmBmFGBkmnHDvEpo.huge https://d3nevzfk7ii3be.cloudfront.net/igi/PmBmFGBkmnHDvEpo.h.... It's wedged between the fans and the batteries, and there's memory on both sides. If you make the board larger to put in SO-DIMM slots, you lose either battery or cooling capacity. The rMBP manages to fit a 15.4" screen and a 95Whr battery in 4.5 pounds. I've never seen an upgradable laptop that fits that much battery into that weight class.
deleted 12y ago
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sliverstorm 12y ago
The RAM is soldered on, per the article. Which begs the question, could they have offered a 16GB option?
- wmf 12y ago
  I'm pretty sure Broadwell supports 16GB, but it may take extra board space and thus not physically fit in the X1.
  - gonzo 12y ago
    or the x16 chips are still too expensive.

by ayejay 12y ago

rayiner 12y ago

There's no slots. Memory is soldered.

pierrec 12y ago
I wonder if it's technically useful or if it's a commercial move. I have an Ideapad Y470 (a model from 3 years ago), and I got the impression they tried to limit the RAM below what the hardware could run, maybe because they want to segment the market in a certain way. The customization page on their website only allowed 8GB of memory and the user manual explicitly stated that the maximum RAM was 8GB. I bought 16GB after reading users reporting that it worked fine, and I can confirm: it works fine. I push it to the limit all the time. Then again, it might just be that new RAM chips came out after the laptop did, and I might just be conspiracy-theorizing.
- rayiner 12y ago
  This is the logic board on the 2014 15" rMBP: https://d3nevzfk7ii3be.cloudfront.net/igi/PmBmFGBkmnHDvEpo.huge https://d3nevzfk7ii3be.cloudfront.net/igi/PmBmFGBkmnHDvEpo.h.... It's wedged between the fans and the batteries, and there's memory on both sides. If you make the board larger to put in SO-DIMM slots, you lose either battery or cooling capacity. The rMBP manages to fit a 15.4" screen and a 95Whr battery in 4.5 pounds. I've never seen an upgradable laptop that fits that much battery into that weight class.

deleted 12y ago

[deleted]

sliverstorm 12y ago

The RAM is soldered on, per the article. Which begs the question, could they have offered a 16GB option?

wmf 12y ago
I'm pretty sure Broadwell supports 16GB, but it may take extra board space and thus not physically fit in the X1.
- gonzo 12y ago
  or the x16 chips are still too expensive.