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Hello, im Polish so please excuse any grammar mistakes. I have a problem, my new build turns on but its not posting, screen shows no signal. Theres a red light on next to "CPU" on the debug LEDs


Ryzen 5 2400g
MSI B450 Gaming Plus
2x4gb 3000mhz Crucial Balistic

MX500 ssd, 600w bronze+ psu but i dont think they are the issue.

All new parts. CPU fan works, Gaming logo on mobo lights up.

I checked 3 times if cpu is installed the right way, same with all cables.
I tried with 2 and 1 ram in different slots

I cleared CMOS twice (once with that connect thing and second time by removing battery for 5 minutes).

 

I called local service, but they will have time next week and its not gonna be cheap.

I might loan couple parts on weekend, like psu or ram, from a guy i know, but hes not a close friend so i dont know if he will agree.

 

Is there anything else i can do or check? Could really use some help, i hope i ddint damage cpu when installig it, not my first build but first AMD, all pins seem fine.

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Red LED, what does it indicate on your board - CPU/DRAM/VGA/BOOT?

Main system: Ryzen 7 7800X3D / Asus TUF Gaming B650-Plus / G.Skill Trident Z5 NEO 32GB 6000Mhz / Zotac RTX 5090 SOLID OC/ x2 WD_BLACK NS770 2TBs/ Corsair HX1000i/ NZXT H5 Flow

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Have you checked CPU pins? Are they all straight, maybe there is a pin missing.

Main system: Ryzen 7 7800X3D / Asus TUF Gaming B650-Plus / G.Skill Trident Z5 NEO 32GB 6000Mhz / Zotac RTX 5090 SOLID OC/ x2 WD_BLACK NS770 2TBs/ Corsair HX1000i/ NZXT H5 Flow

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Check the manual, does it mean CPU good or CPU bad?

Does the motherboard have a speaker so you can tell if its doing the "post good" beep or not?

ASUS B650E-F GAMING WIFI + R7 7800X3D + 2x Corsair Vengeance 32GB DDR5-6000 CL30-36-36-76  + ASUS RTX 4090 TUF Gaming OC

Router:  Intel N100 (pfSense) Backup: GL.iNet GL-X3000/ Spitz AX Switches: Netgear MS510TXUP, MS510TXPP, GS110EMX
WiFi6: Zyxel NWA210AX (1.7Gbit peak at 160Mhz) WiFi5: Ubiquiti NanoHD OpenWRT (~500Mbit at 80Mhz)
ISPs: Zen Full Fibre 900 (~930Mbit down, 115Mbit up) + Three 5G (~1200Mbit down, 115Mbit up, variable)
Upgrading Laptop/Desktop CNVIo WiFi 5 cards to PCIe WiFi6e/7

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