First startup of a Compaq Presario CDS 520 in 15 years

I bought this beauty from Swedish eBay. The CDS 520 resembles the Presario 433 I owned as a child, but with a slightly faster cpu, integrated sound, and a cd-rom drive. This computer came with the original mouse and keyboard. The ram has been upgraded from 4 to 8 mb. I will turn it into a dos / win 3.1 gaming machine. Upgrades: - 20 mb ram - dx2 66 cpu - 3com Etherlink ISA for Internet connectivity Link: https://www.dreamcast.nu/en/compaq-presario-cds-520/