How to Install M.2 NVMe SSD and RAM on Dell Latitude 15 3520 Laptop

We are providing Computer Accessories & Peripherals'
Laptop & Desktop Sale's & Repair Services.
Location Jogeshwari (W) Mumbai-400102
Specifications:
Model : Dell Latitude 15 3520 Laptop
Processor : 11Gen Intel Core i3-1115G4
hard Disk : 1Tb HDD
SSD : 250GB M.2, PCIe NVMe, SSD (We Upgraded 250 GB)
Ram : 4GB DDR4 (We Upgraded 8 GB)
OS : Ubuntu (We Installed Genuine Windows 11)
Display :15.6" FHD (1920 x 1080) AG Non-Touch, 250nits
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[@suhaibpatel-i2e]

watching this on the same machine

[@mateusb166]

ive installed one RAM 8GB ddr4 3200mhz plus the older one 4GB ddr4 3200mhz computer starts everything cooler, ssd etc... but no video.. if i remove one of the memory doesnt matter which one it backs to works normaly, u know what i can do to fix that? sorry for my english.

[@manger6974]

ya soluciono su problema quizas la ram estan malas o alguna de las dos.

[@Chroma.avs_mx]

Is the same for the 3530?