Question Motherboard not detecting ram

Dec 29, 2021
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I have an old ASUS P6X58D-E motherboard, and I have 12gb of ram. The problem is when I go into the bios it is only detecting 4gbs of ram, and in cpu z it says that I have 12gbs of ram and all of my slots are filled (Which they are). Please help me. It is a new build using old ram. The motherboard has all of the 6 slots populated.

Pc specs:
Os: Windows 10 pro 21h2
Ram: Corsair TR3X6G1600C9 6gb (3x2)
Graphics: NVidia Gtx 770 4gb
Socket type: Lga 1366

UPDATE I have attempted to unbend some motherboard pins, and I have reset the cmos by removing the battery and pressing the button on the back I/O and have cleaned out the ram slots once again, and I have gotten 8 of the 12 gbs of ram to show up in windows and the bios. Cpu z still says I have 12 gbs of ram. I have read that on older ram you might have to slightly overvolt the ram to get it to work, but I don't know how to and I don't know if it is safe.
 
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