Question Gigabyte Aorus x670 elite ax: B1&B2 ram slots don't work.

[gigafault]

Hi there. I got the 9800X3D to replace my 3900X. New motherboard: Gigabyte Aorus X670 Elite AX Rev. 1.3. DDR5 RAM: G.Skill Trident Z Royal 6400MHz 96GB (2x48GB).

I have installed everything correctly, used Q-Flash+ to update to the latest BIOS (FB3d), powered on, and got a black screen. I thought the problem might be with my monitor, as the VGA LED light was red. I tried another monitor, but the behavior repeated. Then I tried using only one RAM stick (removed one from slot B2 and left one in A2). I successfully booted with one stick, but running with only one stick is not ideal. Tried two sticks in A1 and A2 - success. But I need a dual channel, so I tried reverting to a previous BIOS version, but nothing changed.

MB CPU socket pins look fine? Yes, I checked every pin before installation and rechecked afterward, and they appear perfect.

What I want is to either fix the problem on-site or identify the faulty component (what it could be?) and get a replacement.

 

[Misgar]

Logically, if the RAM is OK (tested with MemTest86+) it's either the CPU or the motherboard.

Unless you have another mobo and a spare CPU, you're probably stuck.

 

[gigafault]

Logically, if the RAM is OK (tested with MemTest86+) it's either the CPU or the motherboard.

Unless you have another mobo and a spare CPU, you're probably stuck.

Help me brother, I'm stuck.
Ok, so thanks for Memtest tip, I will check. I think I need another mobo cause only what I have is am4 board.(

 

[gigafault]

I found that A1 doesn't work alone, only when A2 is inserted. The strangest part is that RAM boots only at 3600MHz, like a 4-stick JEDEC configuration. WTF? A2 works alone with both sticks. B1 and B2 don't work at all.

What I did: I inserted one stick in A2, then set DDR_VDD and DDR_VDDQ to 1.45V and VSoC to 1.27V. I enabled XMP (6400 32-39-39-102). Then I occupied B2 with another stick and booted successfully. During a stress test, I encountered errors, so I downgraded to 6200 MHz, and finally, it works.

This could be standard behavior for AMD with 6400 speeds, but it seems weird that it couldn't boot JEDEC 5600 in dual-channel mode. I'm going to replace my motherboard with something like the X870E Nova.

19.11.2024 - Beta tester for Gigabyte's questionable motherboards and raw 9800X3D. -- Signed here --