Activate XMP for two RAM modules of identical model but with minor CL variations
Activate XMP for two RAM modules of identical model but with minor CL variations
Slower RAM stays in the main slots, then add XPM and that's it.
It seems you're unsure about identifying the primary option among the available choices, especially in relation to RAM. Let me clarify that for you.
Check the instruction manual or the display for the main ports.
Here are some alternative ways to phrase your message:
- Could you share the remaining timing details? It seems some key times were omitted. I think the list includes: TCL 16, 16 Trcdrd, 18, 20 Trcdwr, 18, 20 Trp, 18, 20 Tras, and unknown (estimated high 20s, low 30s). Any frequency above 2666mhz on an A320 board is risky and not guaranteed. Are your RAM options compatible with these specs?
- I noticed the RAM amount might affect achievable speeds. My setup is an MSI B450 Gaming Pro with 32GB installed, which clocks at 3000MHz. Adding more RAM beyond 2666MHz isn't feasible; I've had to adjust the timings. If you're facing similar issues, consider using a slower RAM stick and manually tweak the settings. Gradually raise the frequency until it stabilizes, then try pairing both sticks. You may not be able to exceed this point, but you can still refine the settings.
I did that and at first it was the same issue. I turned off the power a few times before it finally booted on the third try. No explanation. Now I have both RAMs installed. Thanks. My single slower RAM had these specs: 3200MHz, 3000MHz CAS latency 16, 16 tRCDRD, 20 18 tRCDWR, 20 18 tRP, 20 18 tRAS, 38 36 tRC, 58 55 tWR, 24 23 tCWL, 18 - tRRD_S, 6 6 after plugging in the faster one. After changing to the faster RAM in the second slot, I tried to set all parameters to 3200 MHz and saved. The PC started, then stopped, then came back on, but didn’t boot. I turned it off and on again. In BIOS I see the numbers, but they didn’t change anything. Both RAMs still show 2666MHz and 1.35V, even though the voltage is different. The new timings are terrible—they’re worse than either original spec.
This situation keeps worsening. CPU-Z confirms the information I provided earlier. 32GB RAM is listed, yet Task Manager and Windows show only 15.9GB. I looked into my motherboard's memory compatibility for the Pinnacle Ridge CPU and found the list here: https://download.gigabyte.com/FileList/M...nnacle.pdf. It seems the A320M with Ryzen 5 2600 doesn't support 32GB according to that document. This is quite frustrating. I lack the expertise to decide whether splitting the 16GB into two single-channel sticks would work or if I should stick with one 8GB unit in dual channel. I’m unsure how the system is actually configured right now.
These are the timing details for both sticks. Since they come from the same maker, they’re likely variations of the same product with adjusted settings. This approach is typical in the computer world, allowing one item to serve multiple purposes and reducing expenses. I first observed this with DDR2 chips—they often lacked heat spreaders, and many companies repeatedly used the same components to boost speeds while managing stability through higher latencies. I own several 2133MHz kits running above 3000MHz because I adjusted the timing parameters. It seems memory capacity plays a role; more RAM generally increases stress on the controller. The goal here is to highlight other elements that might prevent your RAM from operating at its intended speed. If you have a low-end A320 board and load a lot of RAM, it’s possible your RAM isn’t officially compatible, which can sometimes cause issues. What I’d suggest is: 1. Reset the CMOS 2. Use a slower RAM model 3. Set voltage and frequency to 3000 with these specific timings (CAS Latency 16, tRCDRD 18, tRCDWR 18, tRP 18, tRAS 36) 4. If successful, try the faster model. 5. If neither works, remove the slower one and test with just the faster one to see if it functions. 6. If it works then the problem might be with your board’s capability to run 32GB at that speed or its compatibility with the RAM you’re using.
They mention the board supports up to 32GB, though no 32GB kits have been confirmed. You'll need to run at native speeds. The optimal approach is to adjust the voltage, set the frequency to 2133MHz, and configure the timing parameters: CAS Latency 16 tRCDRD 18 tRCDWR 18 tRP 18 tRAS. Plan to test 2400, then 2666, and continue until you reach a stable result. Once you identify your peak frequency, consider reducing latencies to regain some lost performance. I’ve faced similar issues with my B450 3700X—32GB exceeds 3000 but maxes at 2666. By tightening sub-timings from a rated CAS of 16 down to 14, my settings became more precise.