Change DRAM speed by adjusting its clock frequency settings directly in the system configuration.
Change DRAM speed by adjusting its clock frequency settings directly in the system configuration.
Hello, I just installed a new memory kit on my computer and after turning on XMP, I encountered a "Memory Overclock Fail" message when trying to boot Windows. Both kits are 2x8 GB DDR5 at 4800 MHz, but they’re not the same product. One appears as a SK Hynix model in the BIOS while the other shows up as Micron. I suspect this mismatch is causing the issue, and the fix might involve manually adjusting the DRAM frequency using XMP. Before enabling XMP, I was able to boot without problems. I’m not entirely confident about the manual setting, but I think the first number in the frequency options should match the memory’s rating. At 4800 MHz, the available choices are: 4800 (36x100.00x1.33) G2, 4800 (36x100.00x1.33) G4, 4800 (48x100.00x1.00) G2, 4800 (48x100.00x1.00) G4. I’m not finding clear guidance online, so any clarification would be greatly appreciated. Please see the full system details below. Thanks! CPU: Intel Core i5-12600k GPU: AMD Radeon RX 6800 XT Motherboard: MSI Pro Z690-A BIOS: MSI Click Bios 5, version E7D25IMS.A00 RAM: Two kits, both 2x8GB DDR5 4800 MHz. One is SK Hynix, the other Micron. Storage: Two drives, one Sabrent Rocket 1 TB M.2 SSD, one SPCC 2 TB M.2 SSD. PSU: EVGA Supernova 850 G5, 80 Plus Gold rated.
Don't proceed with this setup. Request a 2x16GB package if possible. A 4x8GB configuration isn't ideal for DDR5 due to reliability issues at higher speeds and performance trade-offs. Using mixed memory can cause significant problems, though the system managed to boot. Achieving stable operation around 4800 MHz will depend heavily on your setup. "G2" and "G4" describe the memory controller's gear mode; for Intel DDR5, maintain Gear 2 consistently. Frequency differences (1.33 vs. 1.00) relate to the 'strap'—test both to see which performs better under stress.
When combining rams, their performance might not match expectations. It’s best to use matched sets. Timing details can vary, so consider these steps: 1. Adjust voltage to 1.25v. 2. Test the 48x100x1.00 G2 setting if successful—it offers the top speed. 3. Experiment with the 32x option using G2. As noted, running multiple sticks, particularly mixed pairs, isn’t ideal. Opt for a 2x kit instead, and look for faster alternatives.
You're right to question this. It sounds like you're weighing performance gains against potential stability risks. The upgrade might not be worth it unless the speed improvement is significant enough to justify any possible hiccups during boot. If you're concerned about stability, consider testing it in a controlled environment first. Otherwise, it seems like a trade-off you need to decide based on your priorities.
I discovered this during my research, so I’ll be more careful next time—either bring a matching kit or increase the capacity upfront. For now, I’m giving your idea a try, thank you!
Everything could work out, so you might want to try it, though you shouldn’t think it will make much progress. If swapping back some kits for a 2x16GB unit later on is an alternative, go for it.