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PC Processors

jfegoz
Journeyman III

Ryzen 7 5700X3D doesn't boot with dual channel RAM

Hi! Please help. My pc with new 5700X3D doesn't start, not even BIOS when ram in dual channel intalled.

 

CPU: Ryzen 5500

GPU: RX 7600 MB:

GIGABYTE B550M DS3H AC rev 1.4 with BIOS updated to version FB to support Ryzen 5000

Ram: Silicon Power Gaming Series DDR4 16 BG x 2 at 3200 MHz for a total of 32 GB in dual channel

Source: EVGA GD 700 80 Plus Gold

Cooler: Thermalright PS120SE

OS: Windows 10 updated to date

AMD chipset updated to date

 

A week ago I upgraded the CPU and upgraded to a 5700X3D since there is also an RX 7900GRE on the way to play at 1440p. It should be said that before uncovering the PC to change the CPU, I did not do anything at the software or BIOS level, since everything worked normally; The thing is, when I finished installing the new CPU, I booted the PC and the following happened: The PC turns on, the cooler fans turn on and the case fans also turn on, but that's it. The GPU does not start nor do its fans start and the PC does not provide video, it does not even start the BIOS, it stays with those fans on, but it stays there all the time. I did many things, I looked for updated BIOS, I disconnected, I retested the PC with the previous CPU, I started to discard components and after a long time, I reached the RAM memories, which until now I had not touched, so they are still installed in dual channel in slots A2 and B2 as MB recommends in its manual and as they have always worked, so what I do is remove a RAM module, specifically remove the one from slot B2.

Here the PC, with the new CPU, managed to turn on normally. With the idea of ​​starting to rule out RAM problems, I started testing each RAM module in all the slots and the following happened (keep in mind that at this point the 5700X3D is already installed):

Module 1 in slot A1: PC works normally

Module 1 in slot A2: PC works normally

Module 1 in slot B1: PC does not boot even in BIOS

Module 1 in slot B2: PC does not boot even in BIOS

Module 2 in slot A1: PC works normally

Module 2 in slot A2: PC works normally

Module 2 in slot b1: PC does not boot even in BIOS

Module 2 in slot B2: PC does not boot even in BIOS

 

The PC with the 5700X3D turns on and can be used normally when the RAM is connected to slots A1 and A2, both with a single module and by connecting both modules, so it works with both RAM but in single channel, due to the slots. A1 and A2.
After this, I start to think that the problems are in slots B1 and B2 and that maybe I did something wrong when manipulating the MB and damaged something or that some particle or dust got into them.
Now, to continue ruling out damage, I remove the 5700X3D and reinstall the 5500 and oh surprise, the PC works well with both one and both RAM installed, the same tests that I mentioned above were carried out with each module and in each slot, even in dual channel in slots A2 and B2, all this verified with CPU-Z, so with this I rule out a physical problem or damage to the MB.
I remove the 5500 again and install the 5700X3D again and the problem remains the same, so what I decide is to leave it with the two RAM in slots A1 and A2, that is, 32 GB in dual channel, which is how I currently have it working.
I have come to the conclusion that it is a problem with the MB/BIOS in conjunction with this specific processor, since it does not recognize slots B1 and B2 in any way.
What I want, and I am very grateful to anyone who collaborates with me or already has experience with this scenario, is to be able to use my new processor with dual channel RAM, since, yes, I have noticed some decrease in gaming and I can tolerate it temporarily, but it is not the idea when making this upgrade.


IMPORTANT: I ​​would appreciate solutions other than the obvious ones, since I have already tried everything and searched both Reddit and AMD forums and other sites, so I have already updated the BIOS with the version that the AMD page gives for my specific MB model. which is the FB BIOS version, I even used a more recent and different BIOS than the recommended model, but without any solution, so I reinstalled the FB version recommended by the AMD support page (The only version in fact); I also tried discharging the MB battery, I also jumpered the two pins of the MB for a clear CMOS; I have already tried changing the RAM profiles in the BIOS, even changing the voltages and trying lower frequencies, but without any different results, as soon as I connect a RAM in any B1 or B2 slot, the BIOS does not even start, only the fans remain. spinning around and nothing else happens.

 

  

6 Replies
Zozo
Journeyman III

Hi, have you found a fix for the problem? I am encountering exact same issue right now, stuck for days.. Only difference is that I can only get it to work with 1 RAM stick at the time.. If i put in RAM into A1 and A2 i get boot error on the mobo any other combo cpu error..

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evrial
Adept I

I have exact same problem, swapped from 5600X to 5700X3D, ASUS b550e bios from Sep 2024, error code 0d and orange DRAM light. Found on reddit 5800X3D had exact same problem still not resolved to this date. XMP profile 3200 works but single channel in left slots only. This RAM was working perfect in dual channel for 4 years and this board worked with this RAM 2.5 years and this bios also worked with dual channel.

Bios:

Version 3610 beta 16.63 MB 2024/09/30

"1. Updated AGESA to version ComboV2PI 1.2.0.Cc.
2. Resolved CPU exception when adjusting items like ""When system is in sleep, hibernate, or soft off states"" in certain languages.

0 Likes

With everything disconnected try pressing the power bottom multiple times on your pc case before touching the JBAT1 pins to ensure all of the electricity is fully discharged

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evrial
Adept I

I did unplug the CMOS battery, discharged capacitors holding power button, nothing helps, only 2 left slots working, and 0d code if DDR module in right slot. Even single module in any of those slots doesn't boot. Latest Bios 3611. Also swapped DDR to Tridenz Z neo 4000, they work at 4000 CL18 in left slots only. This board is top of the line B550

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evrial
Adept I

After few days of investigations I found that 5700X3D was indeed with corrupted memory controller.

The first sign was unable to validate Macrium backups which was never an issue before. I tried for a week without success.

Next I installed ExactFile and md5 hashed every file on my drive and checked each time with 3-5 errors in different files each run. Without success to validate every file hash. I did chksdk and drive and file system works as it should.

Next I installed TestMem5 with configuration Default @serj and indeed 5 memory errors found in 30 min of run.

Finally I replaced cpu to 5600X and memory sticks work in dual channel in slots 2 and 4 and XMP 4000 WORKS as expected and everything wrong before works as it should.

So that's either faulty cpu or faulty cpu microcode.

cafeteriaf24
Journeyman III

same issue here. im running that testmem5 to see if mine says the same thing. i put my 2600x back in and the dual rank posts no problem. this 5700x3d, nothing but stuck in a reboot cycle over and over. A1/A2 run fine. I ordered some new ram to see if it does anything to correct the issue, but i assume it will not. sorta a bummer because i was looking to upgrade things a little to be able to game a bit without having to get a whole new system. just dont have the funds to go all in.

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