7700X may have memory controller issues.
7700X may have memory controller issues.
Hey everyone. Just got started with some feedback. I'm working on a machine for productivity and rendering, but ran into an issue checking for POST. The platform is still pretty new, so info is limited online. Hope you can assist!
Hardware: ASUS TUF GAMING B650-PLUS with Wi-Fi Socket AM5, CPU Ryzen 7 7700X. RAM: CORSAIR Dominator Platinum RGB, 64GB (2x32GB). I own four sticks totaling 128GB. After removing all sticks, no POST appeared. The DRAM debug light was orange. When I took the sticks out one by one, A1 and B1 didn't post with RAM inserted, but A2 and B2 did. Think this points to a faulty memory controller in the 7700X? Any suggestions? Thanks!
It generally indicates a problem with the CPU mount. Remove the CPU, inspect the pins, and reinsert it. This is more likely than a faulty memory controller.
It might relate to the memory controller or a mounting pressure concern. Both excessive and insufficient pressure could play a role. It's worth attempting to start the computer with both A2 and B2 enabled. Watching Greg Salazar's troubleshooting videos is helpful; this particular clip matches your issue. The likely culprit appears to be mounting pressure, especially since CPUs seem seated properly but fail to operate in dual channel mode. If you have a spare CPU cooler, consider using it. A memory controller fault on the CPU is unlikely compared to pressure issues from your cooler. The platform difference between AM4 and AM5 doesn't eliminate the possibility, so it's worth investigating. To support my stance, this video comes after two others in the troubleshooting series, where a dead memory channel was identified. Although Greg noted this is his second observation on a used system, it's still worth trying a different cooler before proceeding with an RMA if the pressure problem is confirmed.
I experienced this on my x570 with a lot of RAM. I had to add two sticks, boost the RAM voltage beyond what I should have done, and only managed to run all four at 3200 speeds after that. It worked eventually (some crap patriot viper 2x32 kits I was using). I’m curious if your setup is similar. I just upgraded to Am5 but only used 64GB this time and had no problems. Please send me your RAM and I’ll test it for you.
It seems Greg inspired my thoughts on controller setup. I've repositioned the chip several times, adjusted the AIO block twice, and applied different pressure settings on the spring screws. A1/B1 are stubborn, but I managed to boot with A2/B2 without issues. The OS is installed and I've run tests. It's stable whether DOPC is present or not. The real issue lies with the motherboard or CPU. I really disliked all the time managing cables. I actually prefer having it as the CPU since it's much simpler to replace or return. There was a channel that didn't respond at all? Even with just one stick in A1 or B1, no POST occurred.
Given the AM5 configuration, it seems unlikely the user has a spare board. @Droosk check for a BIOS update first and see if it helps. Also test the other two memory slots in A2/B2 to eliminate faulty memory. It might resolve the issue, but it’s definitely worth a try. If that doesn’t work, you’ll likely need to return the CPU and proceed with replacement, as the memory controller is now a key component on modern boards. This could point to the motherboard itself, though I’ve found limited guidance online beyond a few years ago about dual-socket systems and LGA1366 boards. The OP on that forum discovered that swapping memory to match another CPU worked perfectly.