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Is my 3700x faulty? Dual channel memory not working, code "0d". Tried almost everything.

yerjam

yerjam

yerjam

Associate
Joined
28 Feb 2012
Posts
67
Location
Northern Ireland
Hello everyone, not sure if this is the right place to post this. Been ages since I've posted here. I have a feeling there's something wrong with my new CPU. Here are my system specs:
  • CPU: AMD 3700x
  • Motherboard: ASUS ROG Crosshair VIII Impact, X570
  • RAM: Corsair Dominator Platinum RGB 32GB (2x16GB) DDR4 3200MHz C16 (CMT32GX4M2C3200C16)
  • PSU: Corsair SF750 80 Plus Platinum
  • GPU: EVGA GTX1070 FTW
The issue is the system does not POST with dual channel RAM, but it does with RAM in one slot. POST state LEDs light up yellow indicating DRAM fault. I get a POST code error readout of "0d". I have made a post about this issue on another forum and didn't get anywhere. Initially I suspected a faulty motherboard DIMM slot but I have replaced the motherboard and have the same issue. Then I thought it could be the RAM so I got a new set and still have the same issue.

Here is everything I have tried:
  • System boots with RAM only in slot A1.
  • System does not boot with RAM only in slot B1 or with RAM in both slots.
  • The RAM in question is on the QVL.
  • I have made sure all PSU cables are secured correctly at both ends.
  • I have checked the CPU for bent pins; there aren't any I can see.
  • I have reseated the CPU and rebuilt the system a few times.
  • I have loosened the CPU cooler screws a little (I've heard this can help)
  • I have updated the BIOS to the latest version, didn't work with original BIOS or new one.
  • I have adjusted the RAM speed in the BIOS to match the speed rated on the modules.
  • Tried with DOCP enabled and disabled
  • I have replaced the motherboard, same issue.
  • I have replaced the RAM, same issue.
  • I have played around with some BIOS settings, including RAM voltage. Nothing seems to work. I have cleared CMOS and power cycled and few times, and nothing.
  • I do not have another CPU to try.
All brand new parts apart from the video card. I have tried everything I can think of and getting nowhere. The last thing left is to replace the CPU, but I want to know if there's anything else I can try, I'm going crazy here.

Everything else is working correctly with one RAM module installed. No other issues.

Edit: My problem ended up being the CPU for anyone that finds this post in the future. I got it exchanged and everything is running fine now.
 
Last edited:
ANDARIAL said:
Can you borrow or buy a different set?
Even if on the approved it might not like playing with your mobo
Click to expand...
I cannot unfortunately. And really? That would be a pain, I've already replaced the motherboard and RAM, I'd hate to replace the CPU only to have it be the make/model of RAM.
 
I can't see that there's much more you can do, you've tried everything apart from a different model for your RAM. There must be a hardware fault or an incompatibility somewhere and since you've replaced the motherboard and the memory, that only leaves the CPU. Did you check the board you were returned was definitely not the same motherboard?
 
Tetras said:
I can't see that there's much more you can do, you've tried everything apart from a different model for your RAM. There must be a hardware fault or an incompatibility somewhere and since you've replaced the motherboard and the memory, that only leaves the CPU. Did you check the board you were returned was definitely not the same motherboard?
Click to expand...

I actually returned the original board Asus ROG Strix X570-I Gaming) for a full refund as there was no stock of it to get replaced. That's when I got the ASUS ROG Crosshair VIII Impact as a replacement. And yeh I know Ryzen can be sketchy with RAM based on my Googling on this matter, but I've seen multiple working builds with this RAM or similar with no issues at all.

I'll go ahead and replace the CPU and if that doesn't work I guess I'll run with one RAM stick.
 
Can you boot the system without the GPU installed, but both RAM modules and end up with the same 0d code?

I had a similar odd issue with an original EVGA GTX 1080, and it ended up being something not working in the BIOS/UEFI causing the RAM fault to show, normally I'd say after the extensive testing it was the CPU, but it is worth borrowing a GPU if you have a friend or neighbour who can help you out. EVGA sent me a newer firmware that fixed the issue, but we'd already replaced the GPU by the time they recognised they were at fault.
 
Thanks for all the replies folks, missed the last few.

My problem ended up being the CPU for anyone that finds this post in the future. I got it exchanged and everything is running fine now.
 
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