Boot up and enter the BIOS setting item dvanced--Frequency/Voltage ControlCPU Voltage: CPU voltage adjustment function, setting range 1.1-1.85v. Through it, users can adjust the working voltage of the CPU by themselves

bios voltage related adjustment options

CPU Ratio: CPU multiplier adjustment function. CPU HOST Frequency (MHz): CPU FSB adjustment function. DDR: CPU Ratio: This option is used to adjust the DRAM:CPU frequency ratio. When the CPU's FSB is 100MHz, the default values ??of this option are 2.00X and 2.66X. When the CPU's FSB is 133MHz, this option The default values ??are 1.50X, 2.00X and 2.50X. AGP Voltage: The voltage adjustment function of the AGP graphics card. Through it, users can adjust the working voltage of the AGP graphics card. Of course, this option, like CPU Voltage, should not be adjusted easily. DDR Voltage: memory voltage adjustment function. Like AGP Voltage and CPU Voltage, it is used to adjust the working voltage of memory

Extended reading on AMD and Intel voltage adjustment knowledge

1) The official name of AMD processor voltage configuration .

VDD:

"VDD" mainly controls the CPU voltage. The unofficial name is "Core Voltage (Vcore)". Normally when we say "CPU voltage" we are talking about "core voltage". In the motherboard setting options, there are usually words such as: CPU Vcore", "CPU Offset Voltage", "CPU Voltage at Next Boot", "CPU Vcore 7-Shift" and "Processor Voltage", which all refer to It is "CPU voltage".

VDDNB:

VDDNB" refers to the voltage that controls the CPU memory controller, CPU bus (HyperTransport) controller and CPU three-level cache. This part we Often called "North Bridge". In the AM2 architecture of the AMD CPU product line, the VDD and VDDNB voltages are the same. But starting from the AM2+ architecture, AMD uses separate voltages to power the CPU and memory controller (AMD calls it "split plane") or "Dual Dynamic Power Management").

VDDA:

VDDA", this voltage is used in the clock amplifier loop in the CPU, this is also called a synchronization loop, this voltage can be selected according to the Converted to "cpu vdda voltage" and cpu pll voltage, and this option is only available in high-end motherboards, this is a voltage multiplier used by the clock circuit within the CPU, also known as a lock (Phase Locked Loop) through this voltage. You can change options such as "CPU VDDA voltage" and "CPU frequency voltage". Usually only high-end motherboards have such options.

VDDIO:

VDDIO" is an independent control memory. bus voltage. JEDEC (a memory standards-setting organization) calls it SSTL (this standard is specifically for high-speed memory interfaces. SSTL specifies switching characteristics and special termination schemes, which can achieve operating frequencies up to 200MHz) voltage. This is what we know as "memory voltage", and several different names often appear in motherboard options: "DIMM Voltage", "DRAM Voltage", "Memory Over-Voltage", "VDIMM Select" and "Memory Voltage" "etc. The default value of this option is usually "SSTL_1.8" (DDR2 memory, 1.8V) or "SSTL_1.5" (DDR3 memory, 1.5V).

VTT

VTT", this is the voltage used for the internal terminal logic part of the memory chip. The default setting value of this option is "VDDIO". However, it should be noted that Intel CPU also has a voltage called "VTT", but its meaning and usage are completely different.

VLDT

VLDT", this voltage is used for the HyperTransport bus connected to the CPU. This voltage is usually called, "HT Voltage", "HT Over-Voltage", "NB/HT Voltage" or some similar name.

Introduction to the names of all voltages in AMD chipsets:

NB Voltage:

"NB Voltage" means that if the "Northbridge Voltage" option is determined to be consistent with the motherboard If the CPU VDDNB voltage is not relevant, then this option is related to the Northbridge chipset voltage.

NB 1.8 V Voltage:

NB 1.8 V Voltage": AMD chipsets use two voltages that are split. One is 1.2 volts (configured through the options above, and is called VDD_CORE ). Another 1.8 volts can also be selected through this option, and this voltage is used as the chip clock multiplier circuit (or PLL, phase locked loop circuit)

Graphics engine voltage:<. /p>

"Graphics engine voltage" is called "Graphics engine voltage". This option usually appears on motherboards with integrated graphics cards. If you want to overclock the onboard graphics card through the motherboard, you can use this voltage option. Adjusts the voltage of the integrated graphics controller chipset. This option is sometimes called "mGPU voltage"

SidePort voltage:

"SidePort voltage": This voltage supplies the integrated graphics memory chip. , the voltage of the onboard image engine can be adjusted through the motherboard

SB voltage:

"SB voltage" is used to control the voltage of the Southbridge chipset.

PCI Express voltage

"PCI Express voltage", this voltage is used in the PCI-E bus and is used for overclocking the PCI-E bus. This option is also called "PCIE VDDA Voltage" or "VDD PCIE Voltage" ".

The voltage name of Intel CPU processor.

VCC:

"VCC" is mainly responsible for the CPU voltage, unofficially called "Core Voltage (Vcore) ", usually called "CPU voltage".

VTT:

"VTT": This voltage line supplies the integrated memory controller (a component on the CPU ), QPI bus (an integral part of the CPU), FBS terminal, L3 cache, temperature controller bus, and other circuits that rely on the CPU. It should be noted that there is also a VTT voltage on the AMD CPU, but it is different from Intel's VTT. Completely different, and the meaning of the VDDNB voltage of Intel CPU and AMD CPU is not much different. When changing this voltage, something similar to "CPU VTT", "CPU FSB", "IMC Voltage" and "QPI/VTT Voltage" may appear. option.

The power supply of SNB and IVB is now divided into three parts, cpu, GPU (core display), vvt

VCCPLL:

"VCCPLL" The voltage is used in the CPU clock booster (PLL, phase locked loop). When this voltage option is changed, you will see an option like "CPU PLL Voltage".

VAXG:

The "VAXG" voltage controls the video controller embedded in the CPU, such as the Pentium G6950, Core i3 5xxx and Core i5 6xx processors. This option may also be called: "Graphics Core", "GFX Voltage", "IGP Voltage", "IGD Voltage", "VAXG Voltage", etc.

CPU clock voltage

"CPU clock voltage" refers to the CPU clock voltage. Some motherboards allow increasing the CPU clock voltage, with options mostly called "CPU Clock Driving Control" or "CPU Amplitude Control".

All AMD CPUs have built-in memory controllers, but Intel does not. It only has this function in the latest version of the model (Core i3i5i7), so whether the memory bus is in the CPU or not On the Northbridge of the chipset, this will depend on the platform.

Three different voltages in the memory bus part:

VDDQ:

"VDDQ", this is the voltage signal on the memory bus, JEDEC standardizes memory Standards organizations call this the SSTL voltage. This is a "memory voltage" configuration.

Of course, this voltage has different names in different motherboards: there are several different names: "DIMM Voltage", "DIMM Voltage Control", "DRAM Voltage", "DRAM Bus Voltage", "Memory Over-Voltage", "VDIMM Select" or "Memory Voltage" etc. The default value for DDR2 memory is 1.8 volts (SSTL_1.8) and the default value for DDR3 is 1.5 volts (SSTL_1.5).

Termination voltage

"Termination voltage" is called the terminal voltage. This voltage is the voltage used by the memory chip to supply the terminal logic. The default value is half of the VDDQ/SSTL voltage. This voltage is usually named "Termination Voltage" or "DRAM Termination". It is worth noting that AMD CPU calls this voltage "VTT", while the VTT of Intel CPU is the secondary voltage of the processor

Reference voltage

"Reference voltage" , reference voltage. The reference voltage sets the memory controller and memory modules in the form of "0" or "1". Memory bus voltages that are less than the reference voltage are "0" and those that are higher are "1". The default value for this voltage is half the SSTL voltage (a.k.a. 0.500x), but some motherboards allow changing this ratio, usually via an option name like "DDR_VREF_CA_A", "DRAM Ctrl Ref Voltage", or similar. "CA", "Ctrl" and "Address" relate to the control lines of the memory bus, while "DA" and "Data" relate to the data lines of the memory bus. These options are the configuration options of the booster. For example: "0.395x" means that the reference voltage is 0.395 times the SSTL voltage. Usually Intel processor motherboards allow you to control each memory channel, so "DDR_VREF_CA_A" is the reference voltage of the A channel, and "DDR_VREF_CA_B" is the reference voltage of the B channel.

The voltage name of the Intel chipset.

North bridge voltage

"North bridge voltage" refers to the north bridge voltage. This part of the voltage is supplied to the motherboard northbridge chip. Intel's northbridge chip is used as MCH (MCH, memory controller hub, on the motherboard for CPUs without built-in memory controller), IOH (I/O hub) or PCH ( Platform Controller Hub) these functions, but the name of this option may be slightly different on different motherboards. The PCH chip has two different voltages, VccVcore (core main voltage, set to "PCH 1.05v" or "pch voltage" on the motherboard) and VccVrm (supply voltage for the clock booster in the chip, on the motherboard The setting is "pch 1.8v" or "pch pll voltage")

South bridge voltage

"South bridge voltage" refers to the south bridge voltage, which is obtained from the motherboard chipset The voltage supplied to the Southbridge chip. The Intel Southbridge chip is used as an ICH (I/O control hub), so this option has some different names: "SB Voltage" or "ICH Voltage".

PCI Express voltage

"PCI Express voltage": To change the voltage of PCI-E, you must confirm whether each PCI-E slot is connected to the system, such as: some Intel The CPU can control one x16 or connect two x8 PCI-E video cards with a low-speed slot controlled by the chipset. In some setups, the northbridge chip powers the PCI-E x16 slot, and the southbridge chip powers the low-speed PCI-E x8, and the voltage of the PCI-E slot is generally hardwired to the chip voltage line, so when you change The CPU will automatically change depending on which cable you connect to, Northbridge or Southbridge. Some chipsets have separate voltages supplied to the PCI-E slots, and on motherboards based on such chipsets, you can find different configuration settings for adjusting the PCI-E voltage. For example, if you want to adjust the Northbridge chipset to control PCI-E x16, you need to adjust the IOHPCIE voltage, while the low-speed PCIE controlled by the Southbridge is adjusted through the ICHPCIE voltage.