Possible reason behind 8d Post code on cold boots!

[BigAl268]

I've been having the 8d issues myself since Sept. 2019 when a Got a 3900X. Intermittent 8d on cold boots when system was Idol for a while. 

 

I've Literally tried everything under the sun to fix the issue, but nothing seemed to work. 

 

Last month I finally decided to try contacting AMD RMA! I believe the 8d Issue that so many are having is a Faulty Memory controller in the CPU from the Initial Batch that were made at Launch!  

 

After returning my CPU to AMD, they tested it and said, It "passed" inspection and they will be sending me a Replacement as soon as possible! By "Passed", I can only guess they mean it booted to the 8d the first time for them also.

 

Anyway, the issue seems to be with the CPU, not Memory or Bios settings. 

 

Also they sent me a Brand New Retail Sealed Box 3900X for the Replacement! Very Nice since I was expecting them to just sent a Tray CPU in the Plastic Holder! LOL! 

 

So I guess if you're still having this Issue and you can spare the time to RMA it, you might get a New CPU out of it.

 

 

[Moonzy]

so are you looking for a solution or just letting us know about it?

 

what memory frequency are you running