B550 Steel Legend won't boot

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   Hi all,

I had this configuration for almost 2 years: 
NVIDIA GeForce RTX 3080 Ti
AMD Ryzen 9 5900X
ASRock B550 Steel Legend
Corsair Vengeance 32Gb Ddr4 3200Mhz?
GIGABYTE AORUS?Gen4 SSD, 1 TB SSD
Gigabyte GP-P750GM

Last week the PC wouldn't boot up and LEDs were acting funny. Looked like a PSU issue but after testing thought it was Motherboard issue. It was under warranty so got Motherboard replaced and ended up replacing the PSU with the Corsair 750 RM. Plugged everything back in, and now I'm getting 5 short beeps and the d6 error.

I tried:
- A different CPU (3700x from my brother's PC, I know for 5900 series need a BIOS update)
- Checking CPU pins on 3700x and 5900x, both seem fine (CPU seems to get warm when booting)
- Using different HDMI/DisplayPort cables
- Removed the motherboard battery
- Checked all power cables

Any suggestions on next steps?

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Kyrosyves Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 30 Sep 2022 Status: Offline Points: 35	Post Options Post Reply Quote Kyrosyves Report Post Thanks(0) Quote Reply Topic: B550 Steel Legend won't boot Posted: 30 Sep 2022 at 9:17pm
	Hi all, I had this configuration for almost 2 years: NVIDIA GeForce RTX 3080 Ti AMD Ryzen 9 5900X ASRock B550 Steel Legend Corsair Vengeance 32Gb Ddr4 3200Mhz? GIGABYTE AORUS?Gen4 SSD, 1 TB SSD Gigabyte GP-P750GM Last week the PC wouldn't boot up and LEDs were acting funny. Looked like a PSU issue but after testing thought it was Motherboard issue. It was under warranty so got Motherboard replaced and ended up replacing the PSU with the Corsair 750 RM. Plugged everything back in, and now I'm getting 5 short beeps and the d6 error. I tried: - A different CPU (3700x from my brother's PC, I know for 5900 series need a BIOS update) - Checking CPU pins on 3700x and 5900x, both seem fine (CPU seems to get warm when booting) - Using different HDMI/DisplayPort cables - Removed the motherboard battery - Checked all power cables Any suggestions on next steps?

Kyrosyves Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 30 Sep 2022 Status: Offline Points: 35	Post Options Post Reply Quote Kyrosyves Report Post Thanks(0) Quote Reply Posted: 30 Sep 2022 at 9:59pm
	Small update: I tried booting with only HDMI cable in motherboard, CPU (3700x), and RAM installed. Still same 5 short beeps + d6 error.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22748	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 30 Sep 2022 at 11:49pm
	5 beeps and d6 indicate no GPU detected. If you can, try another GPU. The display outputs on the board will only work with an APU (APUs tend to end in "G" like the 3000g or 2200g etc). The fact that you are getting the d6 error means the board, CPU and RAM are working as they should. The GPU initialization can't take place unless they are. You may also want to try your GPU in another system, it may have been damaged by a faulty PSU. I hope not for your sake though