Question GPU and mobo not working together!

maruf01

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Feb 19, 2015
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Think I've got a good one this time.
Bought a new PC. Two weeks no problem. Suddenly, it won't start. Sometimes it starts but very slowly and hangs on the way. Tried a different GPU, a GTX 1030, runs good. (I should point out the 1030 only uses PCIE slot power and no extra 6 or 8 pin power) But with my regular GPU RTX 3060, having problem starting up and hanging up on me. Changed PCIE power cable and different PCIE socket on PSU but same issue.
Tested my GPU, RTX 3060 on different motherboard, no problem, stressed it no problem. Tested CPU, ram, SSD and GPU on different motherboard, no problem. So it's my motherboard, right? But no, it works with other GPUs! So I can't pin down where the issue is so I can't get them replaced despite having warranty because both GPU and motherboard are working fine, just not together!
Here's my config:
  • Ryzen 5800x
  • B550 Aorus Elite motherboard
  • Corsair vengeance ram 32 GB @ 3600 MHz
  • Samsung 980 pro 1tb gen4 nvme
  • MSI MPG 850w gold PSU
HELP
 

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