Question 5700x3D only works in single channel but not dual.

[Dropment]

Built a pc with a 5700x3d b550 tomahawk and 3600cl14 ram. It only posted with ram in slots A1 and A2. I have tried all slots alone and no B channel boots. I did update the bios and saw no bent pins. Since building it i have taken it apart and returned the mobo and got a new one. Did see a post about the 5700x3d having a bad memory controller. I do have a 5700x non 3d that worked in a previous system with that ram.

 

[Dark Lord of Tech]

Needs to be in A2 and B2 for Dual mode.

 

[Dropment]

Needs to be in A2 and B2 for Dual mode.

The pc does not boot with any ram stick in B1 and B2

 

[Dark Lord of Tech]

Sounds like it might be a bad memory controller\ channel.

 

[LuKaWin10]

Built a pc with a 5700x3d b550 tomahawk and 3600cl14 ram. It only posted with ram in slots A1 and A2. I have tried all slots alone and no B channel boots. I did update the bios and saw no bent pins. Since building it i have taken it apart and returned the mobo and got a new one. Did see a post about the 5700x3d having a bad memory controller. I do have a 5700x non 3d that worked in a previous system with that ram.

Possibly a bad memory controller. Refund that CPU

 

[Dropment]

Possibly a bad memory controller. Refund that CPU

This is the second 5700x3d ive had and both had the same issue. I might just use my 5700x non 3d and oc it.

 

[PiersPlowman]

This is the second 5700x3d ive had and both had the same issue. I might just use my 5700x non 3d and oc it.

Run the RAM in its default (non-XMP / DOCP) profile. Does it boot with slot B2 populated?

 

[Dropment]

Run the RAM in its default (non-XMP / DOCP) profile. Does it boot with slot B2 populated?

did have the ram default. It does not boot and the cpu debug light is on

 

[PiersPlowman]

did have the ram default. It does not boot and the cpu debug light is on

Cleared the CMOS?

To confirm: you have had two X3Ds and two mobos and the issue persists through these?

RMA them again.

 

[Dropment]

Cleared the CMOS?

To confirm: you have had two X3Ds and two mobos and the issue persists through these?

RMA them again.

I returned the first X3d and new mobo replacement comes tomorrow have not tested yet/

 

[PiersPlowman]

I returned the first X3d and new mobo replacement comes tomorrow have not tested yet/

Ah, I see. Hopefully that will see the end of the issues you have been having.

 

[Dropment]

Ah, I see. Hopefully that will see the end of the issues you have been having.

At this point I am ready to return the x3d back and get my money back and just use the non 3d chip. Troubleshooting has been dreadful when this issue is only for 5000 x3d chips

 

[PiersPlowman]

At this point I am ready to return the x3d back and get my money back and just use the non 3d chip. Troubleshooting has been dreadful when this issue is only for 5000 x3d chips

Could just be bad luck. Unless the return window is coming up imminently, I'd hold on until tomorrow for that replacement mobo.

 

[Dropment]

Could just be bad luck. Unless the return window is coming up imminently, I'd hold on until tomorrow for that replacement mobo.

I do have to return it before a certain time since i have a statement to pay with that cpu on it. My patience is thin now from the last time i build my pc and taken it apart twice.

 

[helper800]

I do have to return it before a certain time since i have a statement to pay with that cpu on it. My patience is thin now from the last time i build my pc and taken it apart twice.

I have a 5800X3D and Gskill cl14 3600 MT/s RAM and also had issues using A1 and B1 at first. My kit is a 4x8gb kit though. A BIOS update fixed my issue. I am on the ROG X570-f board from ASUS. LMK if you have and pointed questions since we have similar enough builds.

 

[Dropment]

I have a 5800X3D and Gskill cl14 3600 MT/s RAM and also had issues using A1 and B1 at first. My kit is a 4x8gb kit though. A BIOS update fixed my issue. I am on the ROG X570-f board from ASUS. LMK if you have and pointed questions since we have similar enough builds.

Did do a bios update and no luck. I am using 2x16gb sticks

 

[helper800]

Did do a bios update and no luck. I am using 2x16gb sticks

You should do a mem test with each stick in slot A2. Maybe you have a bad stick that you put in slot B2 with both CPUs. Does the PC boot with both sticks in slot A2? Does the system boot with the stick you know for a fact works in all slots or just A1/A2? If that's the case it would seem the motherboards B1/B2 pathtraces are damaged. Another thing to look at would be the motherboard CPU pins. If you have a bent or damaged pin in the right spot it can cause these kinds of issues!

 

[LuKaWin10]

Did do a bios update and no luck. I am using 2x16gb sticks

Do a memtest as helper800 said. Do with 1 stick; then both sticks in slots that work. Maybe try a different kit of RAM

 

[Dropment]

You should do a mem test with each stick in slot A2. Maybe you have a bad stick that you put in slot B2 with both CPUs. Does the PC boot with both sticks in slot A2? Does the system boot with the stick you know for a fact works in all slots or just A1/A2? If that's the case it would seem the motherboards B1/B2 pathtraces are damaged. Another thing to look at would be the motherboard CPU pins. If you have a bent or damaged pin in the right spot it can cause these kinds of issues!

These sticks were in a previous system over I took them out and put them in the new build. The cpu pins are not bent. I am just going to get a cpu refund and put a 5700x non 3d in the new mobo when it arrives. As for the system i took apart the stick only worked in a1/a2 only.