# Corebook x 1245 additional memory

**URL:** <https://forum.chuwi.com/t/corebook-x-1245-additional-memory/49941>\
**Category:** CoreBook X\
**Created:** [February 16, 2025, 5:05pm UTC](https://forum.chuwi.com/t/corebook-x-1245-additional-memory/49941 "2025-02-16T17:05:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ftor](https://avatars.discourse-cdn.com/v4/letter/f/977dab/32.png) [@Ftor](https://forum.chuwi.com/u/Ftor)\
**Post date:** [February 16, 2025, 5:05pm UTC](https://forum.chuwi.com/t/corebook-x-1245-additional-memory/49941/1 "2025-02-16T17:05:02Z")

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Hello. Could you please help.  
I have two problems:

1. Want to upgrade memory of my corebook but after installing additional memory caught “black screen”. Without additional memory everything works fine.

Serial number - jcorbxiy3h240801623

Memory which was added kingspec 16Gb DDR4 2666MHz KingSpec SO-DIMM (KS2666D4N12016G)

What memory should work and what is the max size, which could be added?

1. Also, after updating windows fn+space doesn’t work. All other combinations works good. How to solve this problem?

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**Author:** ![ChuwiESnotactive](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.chuwi.com/chuwiesnotactive/32/8190_2.png) [@ChuwiESnotactive](https://forum.chuwi.com/u/ChuwiESnotactive)\
**Post date:** [February 22, 2025, 3:19pm UTC](https://forum.chuwi.com/t/corebook-x-1245-additional-memory/49941/2 "2025-02-22T15:19:07Z")

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in theory what you say is right, our RAM can be DD4 16GB

@manonegra222