Question PC won't boot past POST after installing AIO CPU cooler ?

deeve

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Jan 22, 2007
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I have an ASROCK X570 MB with a Ryzen 7 CPU. While removing the stock CPU fan to replace it with a AIO watercooler the thermal paste was "glued" pretty solid to the CPU. While trying to loosen the thermal paste, the CPU pulled out of the socket. I did not unlock the CPU from the socket and ended up bending a couple of pins, which I believe I straightened successfully. When I put the CPU back into the MB it went in effortlessly. All the pins also look really good and I did not see where any were missing.

Once everything was back together, the computer wont boot past the post check. I get two red LED post checker lights stay on when I turn it on that indicate CPU and DRAM fault. After a few seconds the PC reboots and starts the cycle over again. I made sure everything is seated well to include the GPU and memory sticks. I removed the CPU and checked it again to confirm all looks well there in addition to testing each RAM stick independently. I also cleared the CMOS with a jumper just in case.

The AIO fans are connected to the CPU_FAN1 and the pump is connected to the CPU_FAN2/WP.
Here is a link to the pics of my CPU pins. There is a little extra thermal paste on the sides that I cleaned up after taking the pics. I used MasterGel Pro which is not supped to be electrically conductive, but I did clean it anyway.
View: https://imgur.com/gallery/swzAQ6A


Everything looks really good to me. The socket looks good too from what I can see. The only other thing I can think of is to somehow remove the plastic socket cover to see if something under there is messed up but I have no idea how to do that.


Any thoughts or suggestions on where to go from here?
 

deeve

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Jan 22, 2007
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I was hoping the same thing and it would be an easy fix. I did check the manual and it lists fan2 as Ana optional connnection point for the water pump. I even tried connecting the original cooler fan to where it was connected before and it did not seem to help.
 

deeve

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Jan 22, 2007
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Thank you for that. I have cleaned off the cpu but wasn't able figure out the socket. I have since found a video that shows how to take the top off of the am4 socket. I'll do that later today and report back.
 

deeve

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Jan 22, 2007
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good point I didn't think of.. I did have a wrist strap on when I pulled it out, but took it off for the photos. Probably should leave it on anytime I'm handling the CPU.
 

deeve

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Jan 22, 2007
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Closing the loop on this. The socket in the motherboard ended up with some bent pins that could not be fixed. Expensive lesson learned. Next time I'll run it a little hot to get the paste to soften up.
 

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