PC Processors

[vessils]

Hi, as the title suggests I've had my build for a year and half already (built it in October 2023), which is the following:

Mobo: Asus TUF Gaming B650-Plus WiFi 

CPU: AMD Ryzen 7 7800x3D

RAM: Corsair Vengeance RGB DDR5 32GB (2x16GB) 6000 MT/s (CMH32GX5M2B6000Z30K)

Storage: WD_BLACK SN850X NVMe SSD 2TB Internal SSD

Couple days ago I restarted my PC and noticed it was taking a while to post and the motherboard's DRAM orange LED was on. I waited for a few more minutes since I know memory training can take a while to finish and nothing. Had to shut down the PC and boot it again only to find out that the issue persisted - no post, orange DRAM LED on.

I tried the following already:

• I've removed the second RAM stick, left only one stick and installed it in every single slot (A1-A2-B1-B2), and in-between each stick's installation I cleared the CMOS - still didn't post.
• Done the same step above but with my other RAM stick, and still didn't post.
• Removed the CMOS battery for about 30 minutes - still nothing.
• Installed the lastest BIOS update for this mobo (Version 3222) - still nothing.
• Removed every peripheral and storage - at this point I only have the Motherboard + CPU + RAM + PSU - no post.
• Tried another PSU - still nothing.
• Tried reseating the CPU and had a visual inspection to both the CPU and the socket - both seem fine. Reinstalled them again and repeated the tests I described above and still no post.

I also connected a speaker to the mobo to see if I could hear any beeping codes - here's what I got: 

• With 1 of the dimms I got no beeping codes at all in any of the slots (tried them all).
• With the other one I got in every single slot 1 long beep + 2 short beeps ( which in this specific motherboard indicates a problem with the memory).

Basically there was no difference between the slots I installed the dimms in: one got no beeping and the other 1 long + 2 shorts.

Now, it seems to be a memory issue, but it's really weird that both sticks just happened to die (one more than the other apparently) at the same time. Also no RGB is present on neither dimms, if that's helpful.

Also for reference, the DRAM motherboard LED is instantly on when I turn on the system (never saw any other LED lit).

So at this point I really don't know what to do. I haven't done anything unsual that could explain this behaviour, just restarted my PC after a few days of runtime (normally put my PC to sleep and wanted to do a clean boot).

Any help is appreciated.

[johnnyenglish]

Try with a fresh new memory kit.

Last week I troubleshooted a PC that woulnd't boot for the love of nothing. Tried every piece of hardware.

The funny bit is, when i take the "faulty" memory to another PC, it works. As soon as i put them back on the original pc, boots once and crash. After that won't boot anymore unless i repeat the feat above.

The faulty PC, that at some point we though it would be the board or CPU, is booting just fine with the new memory stick.

If you have access to a spare memory kit, try it as it could be a similar case.


Good Luck

[mengelag]

@johnnyenglish That is such a weird bug and kind of defies logic lol

[vessils]

I'm gonna try with another RAM kit tomorrow and let you know how it goes, but its really weird that both dimms died at the same time (although in different way).

[vessils]

Ok, so I tried the original CPU in a new Motherboard / RAM Kit and got the following results:

• New Mobo + 1 new RAM Dimm + original CPU - Boots fine
• New Mobo + 1 original RAM Dimm + original CPU - No Boot (one dimm does no beep and the other 1 long + 2 short beeps - exacly like with the original motherboard)

Now, I discarded the CPU and the next step should be to test the new RAM in the original motherboard/CPU, but I'm kinda hesitant in doing so because I don't know if the motherboard could damage the new RAM kit. I'm saying this because its really unlikely both RAM dimms died simultaneously, and thus it could have been the motherboard that killed them (have no idea if this is true, just theorizing).

What do you guys think? 

I know this acquits the CPU of any guilt, and that the issue in this forum should be closed, but I'd like to know what you guys would do in my position.

Thank for the help.