Question Orange post LED dram X570 prime pro

Jan 24, 2021
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Hi everyone,
I finally got the parts to put together my first ever pc build. As far as I know I did everything in the right way, but something is not working. On the mobo the orange post led for dram is on and I have no image on my monitor.
For the moment my GPU has not yet been delivered, so I borrowed an nvidia quadro nvs 315. This gpu is connected to my display with a couple of adapters: on the gpu there's a weird connector, then there's a splitter to dvi and there I use an adapter to hdmi.

Would anyone know how to help me? Thanks!

What I already tried:
  • cmos reset
  • using only 1 stick of ram
  • changing the monitor
  • unplugging the ssd
  • adding the power connector for the cpu ;) (had forgotten about that one)
  • unplugged about every cable from the mobo

PCPartPicker Part List

CPU | AMD Ryzen 7 5800X 3.8 GHz 8-Core Processor | $548.74 @ Amazon
CPU Cooler | NZXT Kraken X73 73.11 CFM Liquid CPU Cooler | $159.99 @ Newegg
Motherboard | Asus PRIME X570-PRO ATX AM4 Motherboard | $243.72 @ Amazon
Memory | Kingston HyperX Fury RGB 32 GB (2 x 16 GB) DDR4-3200 CL16 Memory | $221.59 @ Amazon
Storage | Samsung 860 Evo 1 TB 2.5" Solid State Drive | $108.48 @ Amazon
Video Card | MSI GeForce RTX 3070 8 GB GAMING X TRIO Video Card | $1155.67 @ Amazon
Case | Fractal Design Define 7 ATX Mid Tower Case |-
Power Supply | Cooler Master V Gold V2 850 W 80+ Gold Certified Fully Modular ATX Power Supply |-
Operating System | Microsoft Windows 10 Home Full 32/64-bit | $129.99 @ B&H
| Prices include shipping, taxes, rebates, and discounts |
| Total | $2568.18
| Generated by PCPartPicker 2021-01-24 09:13 EST-0500 |