How to see how much RAM can be inserted into a laptop in Linux?

Question

laptops

Greetings! Decided to upgrade my laptop for a day. There is a dell latitude E6500 !
I'm going to learn php and I need phpshtorm. It goes to 64 bit architecture. Therefore, you need to upgrade to 4 or more gigs! So: how to see how much maximum you can shove RAM into your car? I did not find the exact command on the Internet (
Please tell me pls!

inxi -F

System: Host: Support Kernel: 5.4.0-65-generic i686 bits: 32 Desktop: Xfce 4.14.1 Distro: Linux Mint 19.3 Tricia
Machine: Type: Portable System: Dell product: Latitude E6400 v: N/A serial: 27SFK4J
Mobo: Dell model: 0U695R serial: .27SFK4J.CN129619AJ3093. BIOS: Dell v: A32 date: 02/09/2012
Battery: ID-1: BAT0 charge: 5.1 Wh condition: 5.2/48.8 Wh (11%)
CPU: Topology: Dual Core model: Intel Core2 Duo P8700 bits: 64 type: MCP L2 cache: 3072 KiB
Speed: 798 MHz min/max: 800/2535 MHz Core speeds (MHz): 1: 798 2: 798
Graphics: Device-1: NVIDIA G98M [Quadro NVS 160M] driver: nvidia v: 340.108
Display: server: X.Org 1.20.8 driver: nvidia unloaded: fbdev,modesetting,nouveau,vesa resolution: 1280x800~60Hz
OpenGL: renderer: Quadro NVS 160M/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108
Audio: Device-1: Intel 82801I HD Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.4.0-65-generic
Network: Device-1: Intel 82567LM Gigabit Network driver: e1000e
IF: enp0s25 state: down mac: 00:24:e8:df:ba:14
Device-2: Intel WiFi Link 5100 driver: iwlwifi
IF: wlp12s0 state: up mac: 00:24:d6:48:1c:84
Drives: Local Storage: total: 149.05 GiB used: 103.15 GiB (69.2%)
ID-1: /dev/sda vendor: Seagate model: ST9160412ASG size: 149.05 GiB
Partition: ID-1: / size: 145.71 GiB used: 103.15 GiB (70.8%) fs: ext4 dev: /dev/sda1
Sensors: System Temperatures: cpu: 53.0 C mobo: N/A sodimm: 45.0 C gpu: nvidia temp: 59 C
Fan Speeds (RPM): cpu: 0
Info: Processes: 195 Uptime: 15h 22m Memory: 1.95 GiB used: 1.18 GiB (60.7%) Shell: bash inxi: 3.0.32

Thanks for taking the time to answer the question!

Answer 1

linux is not involved at all here, you need to look at the specifications of the laptop, since linux cannot know how many RAM slots are present on the motherboard and whether it is soldered at all.
In your case, a maximum of 2 sticks of 4GB ddr2.