Question AMD Ryzen 7 7800x3D - MSI B850 GAMING PLUS WIFI not booting - stuck
Question AMD Ryzen 7 7800x3D - MSI B850 GAMING PLUS WIFI not booting - stuck
Hello there,
I wanted to share my initial PC build experience.
Here’s what I had assembled:
Processor: MSI B850 GAMING PLUS WIFI
CPU: AMD Ryzen 7 7800X3D
Graphics: Gigabyte GeForce RTX 5070 WINDFORCE SFF 12G
Storage: Samsung 990 Evo Plus 2TB
Memory: Patriot Viper Elite 5 5GB DDR5 6000MT/s CL30 White (same unit twice)
Power Supply: Raijintek Cratos 850 Black
Cooler: Arctic Freezer 36 A-RGB Black
Case: Be quiet! SHADOW BASE 800DX Black
I started with just the CPU and one RAM stick in the fourth slot, as recommended by the manufacturer. I attempted to remount the CPU and tested all RAM slots, but consistently only the CPU and RAM would be installed. Even when using both RAM sticks in each of the four slots, the system would still show the same status—CPU on, red LED, and yellow/orange DRAM LED.
I checked updating the BIOS to the latest version, flipping between older versions, and clearing CMOS multiple times, but nothing resolved the issue. I read that this behavior is fairly common for a short time with this configuration, but in my case it persisted even after running the PC for over 15 minutes.
I also looked into the motherboard support pages; it seemed my RAM model wasn’t listed there. Many users mentioned it wouldn’t affect booting, which made me think it might not be the main cause. Still, since this was my first build, I’m uncertain and open to advice. Some say it’s insignificant, others warn it could prevent startup altogether.
Yes, I can retrieve the memory and purchase the 2 stick kit from the motherboard QVL list.
Welcome to the forums, newcomer!
I've set up the PC using just the CPU and one RAM stick in the fourth slot (as recommended by the manufacturer).
For more details, refer to the motherboard manual:
https://download-2.msi.com/archive/mnu_e...nglish.pdf
page: 9 – it says to fill slot A2 on the motherboard when using a single RAM stick. With two sticks, use slots A2 and B2 instead.
CPU Fan: Arctic Freezer 36 A-RGB Black
https://www.arctic.de/en/Freezer-36-A-RG...CFRE00124A
I suggest removing the cooler, cleaning the thermal paste, checking the CPU socket for bent or damaged pins, and reinserting the processor. Avoid tightening the cooler to the CPU mounting holes; instead, place it gently on the CPU's IHS (integrated heat spreader). Make sure the case is facing the right way before proceeding. Try to boot up and enter BIOS to see if the problem persists.
To eliminate RAM as the cause, consider borrowing or purchasing a RAM kit with AMD’s E.X.P.O branding, DDR5-6000MHz or DDR5-6000MT/s, and install it in slots A2 and B2. If the issue disappears after this, it likely points to the RAM you chose first.
I should be able to proceed with that. I've already placed the Kingston FURY 32GB KIT DDR5 6000MT/s CL36 Beast Black EXPO order, and will return the remaining RAMs today. I've shared this thread in case another component might be involved, so I can begin troubleshooting. Thank you. I plan to re-seat the CPU, though I've already done that and inspected the underside and pins—everything appears normal except for minor scratch marks from the pins, which are typical after seating and don't indicate any damage or issues.