AMD FX 4100 black edition shows instability with unstable vcore even after setting manual voltage in BIOS.
AMD FX 4100 black edition shows instability with unstable vcore even after setting manual voltage in BIOS.
Hi all,
I've increased my FX 4100 to 4.3GHz and confirmed successful performance using Prime95 for 17 minutes. I noticed the CPU-Z indicates full load at 1.488v and 72°C during the stress test, which is higher than the 1.425v I set in the BIOS.
Here are my BIOS settings and a picture of the PC:
http://imgur.com/a/fzMuN
I'm curious about this and would appreciate your advice.
Thanks in advance.
It's preferable for your vcore to drop during idle or low-load situations. This helps extend the lifespan of your CPU and reduces heat generation.
AJ Kenway notes that software often misrepresents voltage readings. Check your bios—it should indicate the correct voltage level. The bios also displays a value of 1.440v, which matches what you might observe in the link.
As long as the speed stays below 1.475v it should remain safe around the clock all day. 72c could generate excessive heat, so verify your clockspeed during stress tests since it's already nearing the 70c CPU limit. Use HWmonitor to check each core's CPU clocks. If your BIOS indicates a speed of 1.44v, that's likely accurate. If you're uneasy about your voltage settings or if the CPU is throttling due to heat, consider lowering it to a gentler clock like 4.2 or 4.1 GHz and test for stability. Keep in mind, a 100-200 MHz difference in clockspeed won't significantly affect performance.
AJ Kenway suggests maintaining safe operation below 1.475v for continuous use. 72c could cause excessive heat, so monitor clock speed during stress tests since it's nearing the 70c CPU limit. Use HWmonitor to track each core's clocks. If BIOS reports 1.44v, that's likely accurate. Consider lowering the clock to 4.2 or 4.1 GHz if you're uneasy about voltage or thermal throttling. A 100-200 MHz difference in clockspeed won't significantly affect performance.
Apologies for not being familiar with BCLK-based overclocking; I relied on BIOS settings and previous success locking the CPU voltage. I'm curious about how these two approaches compare.
For now, simply test whether your CPU is experiencing thermal throttling. If so, reduce the core by 100 MHz and adjust the voltage accordingly. A significant overclock is ineffective if your CPU is under thermal constraints. Ignore any software recommendations about voltage; trust the information in the BIOS instead. If a few cores fail to maintain 4.3 GHz, you're likely dealing with thermal throttling. The goal is to discover the optimal balance among temperatures, voltages, clock speeds, stability, and personal comfort.
I believe the issue might be connected to the LLC (Load Line Calibration) configurations. The Vcore changes depending on whether it's underload or idle, so disabling LLC could help resolve the problem.