The computer fails to turn on following a change in the RAM's voltage settings.
The computer fails to turn on following a change in the RAM's voltage settings.
Today I installed my new RAM (Crucial Pro CP2K16G4DFRA32A DDR4 2x16GB 3200MHz) and a fresh HDD drive. After setting everything up, the PC started normally. However, I noticed the RAM still ran at 3000MHz instead of the expected 3200MHz. I opened the BIOS to adjust it to 3200MHz and checked the voltage readings. The new motherboard model showed 1.35V, matching what my old RAM indicated was correct. I also reviewed the new case fan and CPU fan settings, which were changed from standard to performance mode. After saving the changes, the PC restarted and stopped displaying an image output. My Logitech keyboard also failed to connect as usual. The two case fans and the CPU fan continued working, and the drives started properly. I even tried powering off the PC via the PSU switch to see if that resolved the issue.
Great news! Everything is now set to default, and it’s functioning perfectly—especially the battery. Thanks!
The RAM operates best at 1.35 volts, which is suitable and more likely to function effectively at 3200mhz.
The issue could stem from the original RAM's clock speeds. 3000C16 is considered enthusiast grade with a typical voltage of 1.35V, while 3200C22 from the new set follows JEDEC standards at 1.2V. Keeping C16 and other settings would require additional voltage to stabilize performance. Essentially, it’s a manual overclock. Personally, I disable XMP before changing RAM, apply the change, and then reactivate XMP if necessary to ensure updated values are recognized.
You might be able to apply xmp settings to non-xmp RAM by checking the burner for the RAM IC and looking up 16Gb memory profiles. Overclocking should work for some profiles, especially since higher frequencies above 1.5V aren't critical here. Voltage spikes are mainly a concern at very high speeds, but most modern chips handle it fine. For over 1.5V you probably don’t need extra tweaks, and pushing too much voltage can waste power quickly. High-frequency RAM is usually unnecessary unless targeting extreme speeds, which B450M HDV likely won’t support. It’s best to stick with high-frequency options for performance or fun builds.
OP mentioned after installing the new RAM, the system remained at 3000, identical to the previous one. If performance didn’t improve, likely the timing settings stayed unchanged. To prevent issues, as I previously advised, I disable XMP before swapping the RAM in a system so it can adopt fresh stable configurations.