XMP doesn't work with only two RAM sticks installed.
XMP doesn't work with only two RAM sticks installed.
XMP doesn't work with 2x16 sticks of RAM. It activates when I remove one stick, but it stays enabled even when both are in slot A2. The speed doesn't reach 3600MHz. I've updated drivers and BIOS, but the issue remains. I'm unsure what's causing it. This is the RAM I have.
The issue seems resolved as a component can reach up to 3600MHz.
I was focusing on whether the board or platform had known compatibility issues at 3600, especially with Ryzen 1st/2nd gen systems. Often it can boot a single stick at that speed, but not multiple sticks. That setup isn’t one of the ones I’ve seen fail there. The main concern is whether the memory channel is problematic. You mentioned both work in slot A2, but did you check if XMP supports itself in slot B2? This could indicate a faulty memory channel on that board, preventing it from handling higher memory speeds.
I’d also look into whether the latest BIOS version is causing the issue. It’s not unusual for certain BIOS updates to introduce memory overclocking problems, so reverting to an older BIOS might improve compatibility with 3600.
Another point is the CPU mounting method—some boards are strict about it, particularly with DDR5 or contact frames. Make sure the IMC voltages are correct; you may need slight adjustments to enable specific settings.
The key parameters to tweak are VCCSA and VDDQ TX, aiming for around 1.3V for DDR4 3600. You can experiment within these ranges depending on your CPU model and BIOS version.
Ugh, it seems the B2 slot won’t start without XMP support. Should I consider replacing the motherboard?
Check if the system boots at 3200. If not, consider a full return or replacement (likely the motherboard). If it starts at 3200, you may need to adjust the IMC voltages before deciding on RMA. Replacing the motherboard is usually necessary, while the CPU might still work with a 3600. At least try modifying the IMC settings first.
Adjusting the XMP profile to auto requires several restarts, likely around ten, to maintain the 3200 MHz frequency. It consistently posts but remains stuck at 2133 MHz. Since the DRAM voltage isn’t affecting it, focus on other settings—such as clock voltage or power configuration—to resolve the issue.
This should trigger an automatic return manufacturing request. Start with XMP activated and set speed to 3200 just to confirm the sticks don’t need 1.35V to power on above 2666, though I’m skeptical that’s feasible. There are two components: VDDQ TX and VCCSA. Both undergo significant renaming, and without a LGA 1700 ASRock board, I can’t specify their exact locations or names. VDDQ TX is commonly referred to as VDDQ TX, CPU VDDQ, while ASUS labels it IVR Transmitter voltage. VCCSA typically stands for System Agent Voltage, SA voltage, or similar terms.
This model works best with Ryzen processors. For Intel users, use B, C, D, or E3600C16.
I returned the motherboard, but the problem persisted. I'm still experiencing the same issue. I stopped reading further and discovered it could be related to the CPU. Do you have any idea how to test this? Also, with XMP enabled, my system won't boot correctly and forces the CPU to 2133mhz.