15mm Copper Liquid-cooled PC Build. Upgrading my main system.
See below for parts:

COMPONENTS
Case: Lian Li Dynamic Evo
Motherboard: MSI Z690 Unify
CPU: Intel 12900K
GPU: NVIDIA RTX 4080
RAM: Corsair Dominator Platinum 32GB
Storage: Samsung 990 Pro 2TB M.2 SSD
Storage: Samsung 990 Pro 1TB M.2 SSD
PSU: Corsair HX1000i

COOLING
Reservoir: Aqua Computer UTILITUBE D5 100
Pump: Watercool WCP D5-VARIO
Tubing: 15mm Copper Tubing
Alphacool EPDM Tubing
Adapters: EK 90 Adapters
Alphacool 90 Adapters
Radiator: Watercool Heatkiller Rad 360-L x 2
Fans: Noctua NF-A12x25 x 7
CPU: Watercool Heatkiller IV Pro Waterblock
HEATKILLER LGA 1700 HEAVY Backplate
GPU: EK Quantum Vector2 FE GPU Waterblock
TP: Thermal Grizzly Hydronaut Thermal Paste
Coolant: Distilled Water
Additives: Mayhems Hades+
Additives: Mayhems Inhibitor+

CUSTOM
CAD Modelled 15mm Fittings - Satin Nickel Chrome Plated
Distribution Plate Bulkhead Fittings - Satin Nickel Chrome Plated
316 Stainless Distribution Plate
GPU Support Bracket
Reservoir Support Bracket
Modified Lian Li Case For CPU Backplate
Copper Radiator Badges

TEMPERATURE
Ambient temperature: 21 Celsius
CPU Idle: 24 C
GPU Idle: 26 C
These are the maximum temperatures recorded whilst running the Cinebench R24 10-minute benchmark.
CPU Single Core: 44 C
CPU Multi Core: 76 C
GPU: 41 C

Timestamps
0:00 Intro
0:29 Motherboard Assembly
2:05 GPU Assembly
3:24 Component Install
4:14 Copper Tube Prep
5:41 Badge Manufacture
6:03 Bulkhead Manufacture
6:42 Fitting Manufacture
7:44 Steel Plate Manufacture
9:01 Copper Tube Install
9:39 Steel Plate Install
10:18 Loop Filling
10:44 Power On

The music in this video was supplied by Epidemic Sound.