this post was submitted on 06 Jul 2023
17 points (100.0% liked)

PC Master Race

14954 readers
1 users here now

A community for PC Master Race.

Rules:

  1. No bigotry: Including racism, sexism, homophobia, transphobia, or xenophobia. Code of Conduct.
  2. Be respectful. Everyone should feel welcome here.
  3. No NSFW content.
  4. No Ads / Spamming.
  5. Be thoughtful and helpful: even with ‘stupid’ questions. The world won’t be made better or worse by snarky comments schooling naive newcomers on Lemmy.

Notes:

founded 1 year ago
MODERATORS
Brunbrun6766@lemmy.world
_MoveSwiftly@lemmy.world
Xeon@lemmy.ml
IowaMan@lemmy.world
The_Vampire@lemmy.world
CatZoomies@lemmy.world
geosoco@kbin.social
Fudgeknuckles98@lemmy.world
BobaFett26@lemmy.world
17
can't fix RAM voltage on a Gigabyte B450 Aorus Elite (lemmy.ml)
submitted 1 year ago by dingdongitsabear@lemmy.ml to c/pcmasterrace@lemmy.world
20 comments fedilink hide all child comments
 

I have a Ryzen 5 1600AF (Zen+) and 2x 8 GB DDR4 3600 HyperX. when I select XMP1, it says 1.35V in the profile. however, when I boot Strelec WinPE USB (I'm on Fedora, I really don't want to install windows just so I can run HWINFO), install all drivers and launch HWINFO64 it says 1.2V. so I enter BIOS again, go to Voltages and enter 1.35 manually instead of auto. no change, still reads 1.2V. the BIOS side screen shows 1.35 after reboot.

I've found an unresolved thread somewhere with the same problem for my board. I'm on latest BIOS.

am I missing something, is there some additional setting I need to switch so it registers? the BIOS setup is hella confusing and borderline stupid, e.g. enabling virtualization required turning on SMP (how am I supposed to guess what that is?!) that's located in the "Frequency" subsection (wtf?!).

you are viewing a single comment's thread
view the rest of the comments
[–] SteveTech@programming.dev 2 points 1 year ago* (last edited 1 year ago) (1 children)

If you open the sensors part of HWINFO there should be a DIMM voltage from the motherboard, that's a live reading, what does that say?

I'm on Fedora

Here's a few alternatives to HWINFO I've used:

  • CPU-X (has a GUI, and is probably the most like HWINFO but still different)
  • lm-sensors (might require a custom profile for your motherboard, but can provide live temp/fan/voltage sensor readings)
  • dmidecode (built in, can read the data off the dimm, but doesn't read sensors directly)

Edit: Just realised I have that motherboard, and it's probably why XMP stopped being stable. I'll look into it on Monday.

Edit 2: From memory to use lm-sensors you need to use an updated it87 driver for both chips to appear, I can provide a sensors profile on Monday.

[–] dingdongitsabear@lemmy.ml 2 points 1 year ago* (last edited 1 year ago)

CPU-X doesn't list RAM voltages. sensors lists a buncha stuff (none labeled as DDR voltage) but all at 1.2V. dmidecode also lists 1.2V for all items, but I've read that its data is unreliable. I've tried already all the listed options (and then some) and that's why I tried WinPE, as HWINFO64 is supposed to have methods to reliably determine RAM voltage.