Red and Yellow debug lights B650M Project Zero

piatt.15a602e2

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Mar 25, 2025
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Hello,

I see this is a very common issue going through the threads and google search's. Any insight is greatly appreciated.
I have built plenty of intel based rigs with no issues, this is my 1st AMD build. PC is full water cooled so re-setting the CPU and checking for bent pins will be a last resort if needed.

PC will boot with only one ram stick in B1 slot. Will not work in any other slot and will not work with a second ram stick inserted.
Edit: Pc will post with ram sticks in A1&B1.

I've tried clearing cmos and waiting more than 5-10 minutes for the learning portion with no success.
I've check all power cables and ensured they are fully connected.
Updated bios to most recent E7E09AMS.1E2



Specs: B650M Project Zero
Lian Li Edge 1300 PSU
AMD AM5 9800X3D
Asus Pro Art 4080 Super GPU
Ram DDR5 32GB 16GBx2 6000mhz (AMD EXPO)
I originally purchased the Dominator Titanium 64GB 6000 4x16gb ( Not EXPO specific) Would like to use this option if I can get it figured out.

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Clean the memory module's golden finger with eraser and connect the memory module on different memory DIMM slots to check.
 
PC will boot with only one ram stick in B1 slot. Will not work in any other slot and will not work with a second ram stick inserted.
Edit: Pc will post with ram sticks in A1&B1.

Unfortunately this is already enough reason to check the socket pins (and show photos of them). You can try borrowing other RAM for a test first.

With such an elaborate cooling setup, next time, i would test the basic functions with a simple air cooler first. You want to be absolutely sure that everything is good with the board/CPU before doing that much work on the custom cooling.
 
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