The information provided indicates discrepancies between CPU-Z and AIDA64 readings for core voltage.
The information provided indicates discrepancies between CPU-Z and AIDA64 readings for core voltage.
I've adjusted the overclocking on my Xeon X5450 using auto VCore voltage, but the system fails to boot when I slightly increase it. After a stability test, CPU-Z reports a voltage of 1.456V, which surprises me. AIDA 64 shows 1.2375V, matching my original setting. Could this discrepancy be due to the auto voltage configuration?
BIOS Settings:
AI Tuning [Manual]
CPU Frequency [386]
DRAM Frequency [DDR2-772MHz]
PCI Express Frequency [100]
PCI Clock Synchronization [Auto]
Spread Spectrum [Disabled]
CPU VCore Voltage [Auto] (functions at 1.2375 V)
FSB Termination Voltage [Auto]
NB VCore [Auto]
Memory Voltage [1.800V]
DDRII Cannel A REF Voltage [Auto]
DDRII Cannel B REF Voltage [Auto]
DDRII Controller REF Voltage [Auto]
SB VCore (SATA,PCIE) [Auto]
SB Chipset Voltage [Auto]
Asus C.G.I [Disable]
Static Read Control [Disable]
Configure DRAM Timing by SPD [enable]
CPU Configuration:
CPU Ratio Setting [09.0]
C1E Support [Disabled]
Max CPUID Value Limit [Disabled]
Vanderpool Technology [Disabled]
CPU TM Function [Disabled]
Execute Disable Bit [Enable]
SpeedStep [Disable]
There are my BIOS settings. Is there an issue with them? I’ll modify them if needed.
System Specs:
Intel Xeon X5450 CPU
Asus ROG Commando P965 Chipset Mobo
AMD FirePro V5800 1GB GDDR5 128 Bit GPU
Kingston (4x2gb) 8GB DDR2 800 MHz CL6 RAM
HDD1: Samsung HD155UI 1.5 TB
HDD2: Samsung HD250HJ 250 GB
HDD3: Samsung SP0411N 40 GB
PSU: SilverStone Strider 500W 80+ Bronze
OS: Windows 10 Pro 64-Bit 1809
these are your CPU voltage readings, but when you try to overclock it will begin applying XMP settings to RAM and increase the CPU multiplier without adjusting the voltages on that part.
And you are positive everything you are reading is vcore and not VID? There's a difference. VID is the voltage that the cpu asks from the mobo, vcore is what it actually uses. To keep temps down, VID should not be much above vcore. If you have VID set high, that's what the VRM's will supply, no matter what the cpu actually needs. Often happens with Auto settings to guarantee stability.
MSI version of cpu-z reads VID. Asus ROG version of cpu-z reads vcore. Had to look close to see the difference.