Question PC won't boot in with ram in channel A slots

Apr 17, 2022
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Background: I recently installed a new AIO for my CPU because it would overheat, bluescreen, or games would crash. CPU would run at 90-100 with a game running or 60-70 idle. I installed the AIO and all went smoothly. I noticed the temps weren't much better so I opened up my PC again and cleaned and applied new thermal paste (MX-4). Afterward, my PC wouldn't boot but will turn on (lights and fans were on). It would say no signal to monitor and peripherals wouldn't turn on. I saw on this forum someone recommended trying one stick of ram and moving it over in each slot. I did this and it finally would boot. CPU temps now <70 on heavy load. Now, I only use 2 sticks of ram in on the channel B slots.

Problem: Currently if ANY stick of ram is installed in my Channel A slots on the motherboard my computer won't boot. I'd assume that my motherboard was damaged while applying the paste. Does anyone know anything else that could have caused this?

PC specs:
Mobo - ASUS Prime Z590-V
Ram - GSkill 8gb 3200mhz DDR4 x4
CPU - Intel Core i9 11900kf
CPU AIO - NZXT x73
GPU - RTX 3080
 

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