03-24-2017 08:56 AM - last edited on 03-05-2024 10:39 PM by ROGBot
03-24-2017 09:54 AM
03-24-2017 11:25 AM
Raja@ASUS wrote:
Hi,
Just for sake of clarification, Vdroop is common on every power supply that is used on any motherboard. Setting a higher LLC doesn't make things more stable. It just increases the amount of applied voltage in relation to what you have set in the UEFI. You can achieve the same level of stability with a lower LLC and by setting the UEFI voltage higher. The sag will be greater at lower LLC levels, but the actual voltage required for stability under load is exactly the same. There's more to Vdroop, but that subject is more complex.
At higher levels of LLC, you end up with more overshoot past the applied voltage. Some measurements here; different board, but the concept doesn't change (same laws of physics apply). Scroll down to the scope images: https://rog.asus.com/forum/showthread.php?59651-R5E-VCCIN-LLC-7-amp-8-quot-measured-quot
-Raja
03-24-2017 11:49 AM
Saltyfish wrote:
Thanks for the information. I tried on both my m8h and c6h i find that high LLC gives me the closest volts to the set volts in bios. Also if I set my LLC to 3 or lower the vdroop is kind of dramatic that it drops all the way to 1.325v with pre set 1.4v
03-24-2017 01:15 PM
MNMadman wrote:
Also make sure you are using the most accurate readings. The real-time BIOS readings are not always accurate. Monitoring programs in Windows are not always accurate.
HWinfo64 has been putting out almost daily updates, and finally has extremely accurate voltage readings with new newest 5.47-3118 beta version (source) on the C6H board. They are readings directly from the VRMs. I found that the BIOS and previous monitoring programs were wrong as far as my voltages.
03-24-2017 01:15 PM
Saltyfish wrote:
Thanks for the information. I tried on both my m8h and c6h i find that high LLC gives me the closest volts to the set volts in bios. Also if I set my LLC to 3 or lower the vdroop is kind of dramatic that it drops all the way to 1.325v with pre set 1.4v