I've never built a PC before and I don't know that I know all of the considerations.
I'd like something as a server for automated backup from other devices, like phones. I may also do video reencoding on it. I'd like it to be fairly small, but it doesn't need to be that small. This is what I've picked out: https://pcpartpicker.com/list/L3pxGP.
The case, motherboard and power supply I plan to use is the AsRock Deskmini, but it wasn't an option on Part Picker: https://www.newegg.com/asrock-deskmini-x300w/p/N82E16856158068. This was attractive because it says it has a built-in RAID setup. This is for backups, so I'd like RAID, but I don't know anything RAID, so a built-in option sounded convenient. The Deskmeet would have been fine too, but it's out of stock.
Is the cooler OK for that processor? I don't care about a video card, and the 5700G has integrated graphics, but I don't know if I need something else to get the graphics working. Is there anything else I should consider?
Thanks for any help.
I have been running a 2700X for a few years pn my media server. No GPU or integrated graphics. A processor is compeletely fine to transcode 1080p without a GPU as long as it is only 1 stream.
A bit on the software side:
A backup server is certainly not trivial to setup. If you don't want this thing to be a side hobby to sink 100s of hours into, just buy a synology NAS. It will be much smaller, more reliable, and easier to set everything up.
Do you know about containerization and docker? Tailscale + wireguard or reverse proxy + crowdsec + firewall setup? ZFS vs RAID?
With the stability of ZFS and its software raid and software raid support of BTRFS, there is not many reasons to use hardware RAID for a home server anymore. It has benefits in production, but you aren't planning on having 32 drives or anything.
Might be good to just install TrueNAS and make sure your security is set up correctly then use NextCloud and a VPN to backup from your phone. Simplest and most secure solution.