the model came with 16 gb (2x8gb 3200mhz), but in actual use its 13.8 gb since the igpu uses 2 gb for vram, maybe this is why ubuntu was lagging when i was trying to install it, now i cant even run it.

Welcome to the community forum.

IdeaPad_1_15ALC7_Spec.pdf

Memory
Max Memory[1]
• Up to 4GB (4GB soldered + empty SO-DIMM slot) DDR4-3200 offering
• Up to 16GB (8GB soldered + 8GB SO-DIMM) DDR4-3200 offering
Memory Slots
One memory soldered to systemboard, one DDR4 SO-DIMM slot, dual-channel capable
Memory Type
DDR4-3200
Notes: [1] The max memory is based on the test results with current Lenovo® memory offerings

Crucial's Lenovo IdeaPad 1 15ALC7 RAM & SSD Upgrades shows that 16GB can be added for a total of 20GB or 24GB depending on original configuration.

Actually Crucial and other RAM websites claim that you can add a 32GB module for a total of 40GB. If that's something you want to do then I would contact Crucial to confirm this since they don't seem to offer a 32GB module for this model. However I'm not sure what benefit there is in putting so much RAM in an entry-level model.

I use Crucial's website for information about RAM and SSD specifications because it is more up-to-date. Lenovo's maximum sizes are based on the test results with Lenovo RAM and storage offerings at the time the model was introduced. Maximum capacities increase over time as new components come on the market. Crucial's website reflects this and they confirm that their maximums are guaranteed.

Lenovo uses RAM and SSD components from several manufacturers like Crucial (parent company Micron), Samsung, Western Digital, Kingston, etc. Components with the same specifications are compatible. You can buy compatible components from Lenovo directly or from any of these suppliers based on availability, price, delivery speed, etc.

If you buy third party parts make sure that they will fit physically. For example some 4TB 2242 and even 2280 SSDs are double-sided. They are thicker than single-sided and may not fit in your computer.

Hey, did you upgrade your RAM to more than 16gb?? If you did, does dual channel work for you with different RAM sticks as 8gb is soldered and you can't change it, then another RAM stick would not be same as of 8gb( as they say dual channel need same RAM sticks) if you upgraded to more than 16gb.

@neeraj1222 wrote:

Hey, did you upgrade your RAM to more than 16gb?? If you did, does dual channel work for you with different RAM sticks as 8gb is soldered and you can't change it, then another RAM stick would not be same as of 8gb( as they say dual channel need same RAM sticks) if you upgraded to more than 16gb.

Hi neeraj1222,

Thank you for your question.

Just chiming in to answer your specific post.

The Lenovo IdeaPad 1 15ALC7 model supports dual-channel memory configuration, even with the soldered 8GB RAM and an additional RAM stick. While it is generally recommended to use identical RAM sticks for optimal dual-channel performance, the system can still operate in dual-channel mode with different capacities. However, the performance may not be as efficient as with matched pairs.

If you upgrade beyond the 16GB (8GB soldered + 8GB SO-DIMM), the system will still utilize dual-channel for the first 16GB, and the remaining memory will operate in single-channel mode. This mixed configuration can still provide a performance boost compared to single-channel alone.

For more detailed specifications, you can refer to the IdeaPad 1 15ALC7 Specifications.

Best regards,
Dex_Lenovo