OEM products (dell, hp, etc), are usually limited on what upgrades are possible, best to contact them.
Generally, retail purchase of some OEM component products is not widely available.
Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, Aorus gen4 1tb, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T..