Asus Z170-A Ram Problem

Sutton2k9 · Mar 7, 2016

For some reason when i use either A1 / A2 my pc will not post at all i just get a red Memory LED then red CPU LED then the whole PC restarts.

However when i use B1 / B2 it posts and all works fine.

My RAM: Corsair CMK8GX4M2B3000C15

Tried resetting the CPU rebuilding the PC just to make sure the motherboard was not screwed in to tight and updated to the latest bios.

I have also disabled both A1 / A2 then booted and in the bios it has detected the ram being installed but as the slot was disabled it does not show as usable.

I just don't know if there is something stupid i am missing or if my motherboard is just broken.

alexoiu · Mar 7, 2016

"Tried resetting the CPU rebuilding the PC"
Have you checked the socket for bent pins?

azaran · Mar 7, 2016

Provided no bent CPU pins and that the RAM is good, it sounds like you have a board with bad slots. It happens sometimes. Return it if its still under the stores return policy, or RMA it with Asus.

Tradesman1 · Mar 7, 2016

If you have a third party CPU cooler, try loosening, then snug down screw tight, many end up over tightening in a corner or side which doesn't allow the CPU full contact with the pins and ends up 'losing' a channel. If no joy, then would pull the cooler and CPU and check for bent pins

aleksanderovergaard · Jun 1, 2019

Tradesman1 said:
If you have a third party CPU cooler, try loosening, then snug down screw tight, many end up over tightening in a corner or side which doesn't allow the CPU full contact with the pins and ends up 'losing' a channel. If no joy, then would pull the cooler and CPU and check for bent pins

I made an account just to say thanks to you. I would never have figured that out myself.

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Asus Z170-A Ram Problem

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