I need to upgrade gaming pc.

[Tcb73]

Can I upgrade this pc and how, To better play games?

[Prométhée]

Hello
to the question, I would answer yes ...
but with certain limits
You can if not already done add RAM
The graphics card, under certain conditions
Check the required power supply, if need additional pci connectors, are they available on the power supply?
The dimensions, if the model found is too large it may not fit

An SSD, SATA, could be installed!
after all is question of budget, the possible games, for some, it would be better to replace the computer

if it is this model

https://support.hp.com/us-en/product/omen-by-hp-870-200/13687063/model/15741160/document/c05389962

• Amount: 8 GB
• Speed: PC4-17000 MB/s
• Type: DDR4-2133

• Dual channel (one DIMM per channel) memory architecture
• Two DDR4 UDIMM (288-pin) sockets
• Supports PC4-17000 (DDR4-2133)
• Supports 4 GB and 8 GB UDIMMs
• Supports up to 4 GB on 32-bit systems

  note:

  32-bit systems cannot address a full 4.0 GB of memory.

• Supports up to 16 GB (unbuffered) on 64-bit computers

NVIDIA GeForce GTX 1060 (3 GB)

• Form Factor: ATX (full height) PCB with ATX dual slot bracket
• Dimensions: 11.2 cm x 17.3 cm (4.4 x 6.8 in)

Total power consumption: 120 W

External power cable: One 2x3 (6 pin)

Power Supply

Internal 500 W (100V-240V)

Upgrading and Servicing Guide