What is the correct voltage for Questionsafe Memory DDR5?
What is the correct voltage for Questionsafe Memory DDR5?
Hello,
According to the thread's topic, I'm seeking guidance on a safe voltage configuration for memory/IMC and VDD+/Q. I recently increased my G.Skill 6000MHz to 6800MHz with these values: VDD 1.490, VDDQ 1.490, SA 1.1750, IMC 1.345. Should I be concerned about any of these settings? I ran memtest three times and it completed without errors, even overnight. Thanks for the advice.
Sure, just let me know what system you're using so I can give you a more accurate answer.
Sorry i forget to mention.
Model: ASUS Z790-P
Memory: 2x 32GB G.Skill (30-40-40-76) at 6000 MHz
Power Supply: 1000w Be Quiet Pure
Processor: Intel Core i7 13700KF
Graphics: Gainward RTX 4070 Ti
Cooler: Arctic Liquid Freezer 360 AIO
Storage: 2x 2TB Samsung 990 Pro SSD
As long as it meets the requirements, this voltage is considered safe. A quick search online indicates that the maximum voltage for DDR5 SDRAM is around 1.5V. This means the upper limit for the System Agent and Integrated Memory Controller is 1.45V.
System Agent is functioning properly. The issue seems to be with VDD and VDDQ, which are very high; without them I can't run on the 6800. It might be worth considering sacrificing speed for a lower voltage, though I'm not sure if it's necessary or important.
It seems the benefits of upgrading memory aren't significant enough, especially since tuning latency is necessary for any real improvement. Overclocking RAM might not be worthwhile unless you're aiming for specific benchmarks.
Given that your RAM is only rated at 6000MT/s, a speed of 6800MT/s might be excessive. Are your applications truly advantageous compared to just benchmarks? Higher than usual voltage above the standard XMP boost can increase electromigration in both RAM and IMC. This depends on how long you plan to run your system—one year or three years? If you aim for 6800MT/s, consider adjusting the CL (CAS) timing by one clock cycle, such as changing it from CL30 to CL31, then returning the voltage to the usual XMP level (around 1.30V). Lower memory clock speeds and quicker latency might be just as effective as pushing the speed up to 6800MT/s. I’m currently using two 32GB DIMMs on my 7950X at 4800MT/s, since Adobe Premiere Pro doesn’t see much improvement on AMD systems with faster RAM. Last year’s build cost a lot for 64GB of DDR5-6000.