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Bios doesn't recognise A or C slots

DennisHD

I have a Asus X99-A motherboard with bios version 1203

The computer turns on and works fine but not all tre ram is recognized, I have ram in A1 B1 B2 C1 D1 D2, but it only sees B1 B2 D1 D2, how can I fix this, I have tried reseating the ram, but it did nothing

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You might have to try reseating the CPU. Take a good look at the pins while you're there; look for any that appear bent or mashed over.

 

What processor are you running?

I sold my soul for ProSupport.

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I bought my PC used and the screws to the cooler is quite stripped, is there anything else I can try first?

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spray ram slots with 99% IPA and leave to dry for 1-2 hours

 

if that doesnt work yea take the cpu out and spray the socket with 99% IPA again leave to dry and also rub some on the cpu pins incase theyre dirty

 

usually if ram slots are refusing to detect at stock settings its just the ram slots being dirty or the cpu socket and/or pads being dirty

 

as an fyi just incase you run into this

if theyre not detecting at overlocked settings probs have to dial down the oc setting cause the ram is not good enough (ram limit) or you are hitting a board/imc limit, this is completely normal and theres no real fix but to reconfigure rams as some rams just despise some channels in particular like one of my best samsung gdie sticks thatll do 3008c11 max with probs around 2900-2950 stable on the outer channel yet completely destabilizes even at 2800 for the two inner channels on my board (x58a ud3r) despite being able to do high speeds on the outermost channel, and afaik only one other stick will run 3008 on the outer channel out of the 8 sticks i have, buying better rams also works assuming it isnt boardlimit or imc limit

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