I assembled it yesterday and it didn't turn on. This is only my second build, first one was five years ago and it was easy and turned on the first try, no problem. I'm still using that PC. This one for some reason seemed like more of a headache to put together. Mainly mounting the CPU cooler (the pegs the cooler needed to screw to weren't long enough so it took several tries) and similar little things. Then it didn't seem clear where to plug some things into the motherboard. Like the one fan built into the case I wasn't sure which fan plug to put it in, but tried both. There's a cable attached to the top of the case where the top comes off that I have no idea what it is (case is a Chenbro Rackmount 4U Server Chassis RM42300-F as I want to put it in a rack). There is also a cable for two USB ports on the front with nothing on the motherboard that appeared to match the plug on the cable. So maybe I just don't have something plugged into the right spot. So what other details do I need to provide? Here are the parts besides the above case-
MSI PRO X299 PRO LGA 2066 Intel X299 SATA 6Gb/s ATX Intel Motherboard
Noctua NH-L12S, Premium Low Profile CPU Cooler with Quiet 120mm PWM Fan (Brown)
Thermaltake Toughpower GF1 850W 80+ Gold SLI/Crossfire Ready Ultra Quiet 140mm Hydraulic Bearing Smart Zero Fan Full ...
Intel Core i9-10900X Cascade Lake 10-Core 3.7 GHz LGA 2066 165W BX8069510900X Desktop Processor
G.SKILL TridentZ RGB Series 32GB (2 x 16GB) 288-Pin DDR4 SDRAM DDR4 3600 (PC4 28800) Desktop Memory Model ...
EVGA GeForce RTX 2070 SUPER BLACK GAMING, 08G-P4-3071-KR, 8GB GDDR6
SAMSUNG 970 EVO PLUS M.2 2280 1TB PCIe Gen 3.0 x4, NVMe 1.3 V-NAND 3-bit MLC Internal Solid State Drive (SSD) ...
SAMSUNG 970 EVO PLUS M.2 2280 500GB PCIe Gen 3.0 x4, NVMe 1.3 V-NAND 3-bit MLC Internal Solid State Drive (SSD) ...
WD Blue 3D NAND 500GB Internal SSD - SATA III 6Gb/s 2.5"/7mm Solid State Drive - WDS500G2B0A
Blackmagic Decklink Duo 2 SDI capture card
MSI PRO X299 PRO LGA 2066 Intel X299 SATA 6Gb/s ATX Intel Motherboard
Noctua NH-L12S, Premium Low Profile CPU Cooler with Quiet 120mm PWM Fan (Brown)
Thermaltake Toughpower GF1 850W 80+ Gold SLI/Crossfire Ready Ultra Quiet 140mm Hydraulic Bearing Smart Zero Fan Full ...
Intel Core i9-10900X Cascade Lake 10-Core 3.7 GHz LGA 2066 165W BX8069510900X Desktop Processor
G.SKILL TridentZ RGB Series 32GB (2 x 16GB) 288-Pin DDR4 SDRAM DDR4 3600 (PC4 28800) Desktop Memory Model ...
EVGA GeForce RTX 2070 SUPER BLACK GAMING, 08G-P4-3071-KR, 8GB GDDR6
SAMSUNG 970 EVO PLUS M.2 2280 1TB PCIe Gen 3.0 x4, NVMe 1.3 V-NAND 3-bit MLC Internal Solid State Drive (SSD) ...
SAMSUNG 970 EVO PLUS M.2 2280 500GB PCIe Gen 3.0 x4, NVMe 1.3 V-NAND 3-bit MLC Internal Solid State Drive (SSD) ...
WD Blue 3D NAND 500GB Internal SSD - SATA III 6Gb/s 2.5"/7mm Solid State Drive - WDS500G2B0A
Blackmagic Decklink Duo 2 SDI capture card