I use a PC with Intel Audio and Intel Video on the Motherboard to avoid the need for a separate video card and it’s heat which activates fan noise.
You simply do not know it is on.
https://support.hp.com/us-en/document/c05737506
Integrated audio- Audio Codec: ALC3863-CG
- High Definition (Azalia) 5.1 channel audio support
NOTE: The motherboard supports 5.1 surround sound. If the computer does not have the required audio jacks for a 5.1 configuration, additional hardware is required to use 5.1 surround sound.
- Audio jack presence detection
NOTE: An internal speaker is not included with integrated audio. External speakers or headphones are required to hear sound.
NOTE: Integrated audio is not available if a sound card is installed.
You can use it horizontal as I do, smaller than a AVR. HDMI out to AVR ’game’ input.
I use a wireless mini keypad/touchpad/mouse buttons to control the pc from the sofa. Mine is batteries, this one is rechargeable. Size of a small thin remote.
https://www.amazon.com/Rii-Wireless-Keyboard-Lightweight-Controller/dp/B00I5SW8MC/ref=sr_1_3?dchild=...I do keep a full size wired keyboard and wired mouse on top of the PC in it’s horizontal position, for the few times I might need them.
I have the identical PC for my office, also quiet, and it’s hard drive is extremely quiet, very important when sitting right next to it.
Permanent Full Size Keyboard and Trackball in the office. I just overhauled my office for much improved audio, especially imaging, chair and monitor dead on the center of the speakers. Speakers and Monitor and seated Ear Height all perfectly aligned horizontally.
Headphone jack to RCA to Chase Remote Line Controller (remote switch/volume/balance), to Carver Amp to B&W bookshelf pair and Velodyne Sub. TT, R2R, perfect listening triangle, so I am in a great position to hear the benefit of Firefox better YouTube audio over Google Chrome’s audio which is pretty enjoyable itself.
I installed Firefox downstairs in the small HT, it also seems better than Google Chrome audio.
Downstairs, Smart TV, I haven’t been using the PC like I needed in the past, but now I will compare Firefox sound to Smart TV’s sound, always thru my AVR to 5.1 system.