VCORE and VID?
VCORE and VID?
I tested AIDA64 for 7 hours at 1.210V on my 4.8ghz OC (7700k) and observed a max of 1.327V on VID but measured 1.216V on Vcore. What voltage is actually reaching the CPU?
VID (Voltage Identifier) represents the voltage level requested by the CPU to the motherboard's VR (voltage regulator) for supply. This setting is managed by the CPU and may adjust based on power-saving modes such as C1E/EIST. Each CPU has a distinct maximum VID value configured during manufacturing, which remains fixed while operating at full capacity. Disabling power-saving features like C1E/EIST will reset the CPU's VID to its maximum level permanently.
VCore indicates the actual voltage delivered to the CPU by the motherboard. This can be automatically controlled by the CPU due to the functionality of C1E/EIST, or it may have been manually adjusted by the user during overclocking (OC). The "manually set" Vcore value could vary depending on these configurations.
vid is the value you enter in the bios, while cpu gets the actual voltage from your processor (a multimeter might show a slight difference of 0.01-0.02v).
The Voltage Identifier (VID) is the voltage level requested by the CPU to the motherboard's VR (voltage regulator), which is managed by the CPU and may adjust if power-saving modes such as C1E/EIST are active. Each CPU has a distinct maximum VID set during manufacturing, which remains fixed while operating at full capacity. Disabling power-saving features like C1E/EIST will reset these settings, permanently locking the CPU's VID to its maximum value.
The actual voltage delivered to the CPU (VCore) can vary depending on whether the CPU is running in power-saving mode or not. In some cases, the CPU automatically adjusts this value based on the features enabled; in others, it may be manually configured by the user during overclocking. The VCore reading provided by software is generally less precise, typically within a range of +/-10 to 20% under normal conditions.