Boot Loop upgrading PC

Kyhz · February 1, 2021

Hey! First of all, sorry for my grammar, I'm not a native English speaker

I want to revive a dead computer that died because a PSU failure.

I bought new PSU, RAM and SSD.

Then I found a boot loop problem (I'd say the same that Im having right now) and i bought a new motherboard because i thought it could be the problem. I bought the motherboard secondhand and It worked!!!

I installed everything and it worked the first day! I managed to install Windows 10 and all the stuff and I kept the computer for 2 months, then I went to start it and ran into the same problem than before.

Things that I tried:

Replacing CPU and nothing changed
Replacing PSU and nothing changed
Disconnect all peripheral and SATA and nothing changed
Update BIOS and nothing change
Hard reset BIOS to default values and nothing changes (CMOS reset)

Possible solution:

The RAM is brand new but is this amazon model: TECMIYO 8GB Kit (2x4GB) PC3 12800 DDR3 1600 CL11 1.5V 240Pin Non-ECC Unbuffered UDIMM Desktop Memory Ram Module

I managed to boot correctly the computer by only booting with 1 RAM stick and DIMM2. If i insert both RAM stick it doesn't boot. Even If I insert 1 stick in DIMM1 It doesn't boot.

It's very weird because It worked the first day with both sticks!! And I haven't use the PC since then.
I also check if the DIMM1 slot has any pin burnt but I can't see anything

I attach a video of the boot loop and my computer components:

Motherboard: MSI H61-P32/W8
No GPU.
CPU: Intel i5-3450
PSU: Mars Gaming MPII550
RAM: TECMIYO 8GB Kit (2x4GB) PC3 12800 DDR3 1600 CL11 1.5V 240Pin Non-ECC Unbuffered UDIMM Desktop Memory Ram Module