Overclock.net › Forums › Intel › Intel CPUs › CPU voltage not showing on CPU-z ?
New Posts  All Forums:Forum Nav:

CPU voltage not showing on CPU-z ?

post #1 of 6
Thread Starter 
Ok, first of all I might be completely off here but is the cpu voltage that you can adjust in the bios the same as the core voltage that is displayed in cpu-z ? If it is, then why does it not show the proper voltage, for example in my bios I set my cpu voltage to 1.4 v but in cpu z it says 1.300 -.400 v (it varies from around that), I have auto voltage turned off obviously (If I didnt I would not be able to change the cpu voltage in the first place.
Cookie heart
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 3.2 GHz GIGABYTE - G33M-S2 8800 GTS 320mb 4x1GB DDR2 Kingston 800Mhz 
OS
Windows 7 Ultimate 32 bit 
  hide details  
Reply
Cookie heart
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 3.2 GHz GIGABYTE - G33M-S2 8800 GTS 320mb 4x1GB DDR2 Kingston 800Mhz 
OS
Windows 7 Ultimate 32 bit 
  hide details  
Reply
post #2 of 6
what version CPU-z, I know there was some reported problems with 1.57 and core voltage
change to 1.56 and its fixed if so
    
CPUMotherboardGraphicsRAM
Phenom II X6 1090T@ 4.0GHZ 1.416v Asus Crosshair IV Formula Radeon HD5850 G.SKILL PI Series 4GB (2 x 2GB) 240-Pin DDR3 2000 
Hard DriveOptical DriveOSPower
WD Caviar Black 640 GB 6.0 Gb/s LG 22X DVD Burner Windows 7, Ubuntu 10.10 CORSAIR HX Series 1000W 
Case
Antec 1200 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Phenom II X6 1090T@ 4.0GHZ 1.416v Asus Crosshair IV Formula Radeon HD5850 G.SKILL PI Series 4GB (2 x 2GB) 240-Pin DDR3 2000 
Hard DriveOptical DriveOSPower
WD Caviar Black 640 GB 6.0 Gb/s LG 22X DVD Burner Windows 7, Ubuntu 10.10 CORSAIR HX Series 1000W 
Case
Antec 1200 
  hide details  
Reply
post #3 of 6
Thread Starter 
Quote:
Originally Posted by daltontechnogeek;12714429 
what version CPU-z, I know there was some reported problems with 1.57 and core voltage
change to 1.56 and its fixed if so

Yeah I have the 1.57 one, will try the 1.56.
Cookie heart
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 3.2 GHz GIGABYTE - G33M-S2 8800 GTS 320mb 4x1GB DDR2 Kingston 800Mhz 
OS
Windows 7 Ultimate 32 bit 
  hide details  
Reply
Cookie heart
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 3.2 GHz GIGABYTE - G33M-S2 8800 GTS 320mb 4x1GB DDR2 Kingston 800Mhz 
OS
Windows 7 Ultimate 32 bit 
  hide details  
Reply
post #4 of 6
Quote:
Originally Posted by candy wrapper;12714391 
Ok, first of all I might be completely off here but is the cpu voltage that you can adjust in the bios the same as the core voltage that is displayed in cpu-z ? If it is, then why does it not show the proper voltage, for example in my bios I set my cpu voltage to 1.4 v but in cpu z it says 1.300 -.400 v (it varies from around that), I have auto voltage turned off obviously (If I didnt I would not be able to change the cpu voltage in the first place.
This is completely normal. The value you set in the BIOS is the maximum voltage the CPU can be exposed to taking into account voltage spikes when you go from a loaded to unloaded state. This is as Intel designed it, a voltage drop from the BIOS set value, and a further drop when you load the CPU.

This bothers a lot of people and that is why load line calibration was introduced. If you enable that the value you set in the BIOS is the under-load voltage value, and there is some motherboard jiggery-pokery going on to keep that value constant as you go from loaded to unloaded.

I prefer the former situation because you know for a fact what the maximum voltage you are exposing your CPU to is. If you enable LLC you are exposing the CPU to unknown spikes (which happen far to fast for you to detect with software monitoring).

Ultimately as long as you're not near the extremes of acceptable voltages it's probably fine to enable LLC though if you'd rather see what your BIOS set voltage is as your CPU voltage in cpu-z.
The Oracle
(16 items)
 
Pythia
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790K Gigabyte GA-Z97X-GAMING 5 Gigabyte GeForce GTX 780Ti WindForce 3x OC Corsair Vengeance 2x8GB DDR3 1866MHz  
Hard DriveHard DriveHard DriveCooling
Samsung 256GB 850 Pro Samsung 256GB 840 Pro Westerb Digital Caviar Black 1TB XSPC Rasa ES240 + 2 GT AP-15s 
OSMonitorKeyboardPower
Windows 8.1 Pro Samsung SyncMaster S27A850D 27" LCD Corsair K70 Corsair AX850 
Case
Corsair 650D 
CPUMotherboardRAMHard Drive
i3 4130 Gigabyte GA-B85M-HD3 Corsair 2x4gb DDR3 1600mhz Low Profile CL9 1.35v WD Blue 500GB (OS) 
Hard DriveOSMonitorPower
WD Green 4TB, 2TB Ubuntu x86_64 14.04.1 LTS ssh or vnc SuperFlower Golden Green HX 350W 
Case
Corsair 350D, GT AP-13 
  hide details  
Reply
The Oracle
(16 items)
 
Pythia
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790K Gigabyte GA-Z97X-GAMING 5 Gigabyte GeForce GTX 780Ti WindForce 3x OC Corsair Vengeance 2x8GB DDR3 1866MHz  
Hard DriveHard DriveHard DriveCooling
Samsung 256GB 850 Pro Samsung 256GB 840 Pro Westerb Digital Caviar Black 1TB XSPC Rasa ES240 + 2 GT AP-15s 
OSMonitorKeyboardPower
Windows 8.1 Pro Samsung SyncMaster S27A850D 27" LCD Corsair K70 Corsair AX850 
Case
Corsair 650D 
CPUMotherboardRAMHard Drive
i3 4130 Gigabyte GA-B85M-HD3 Corsair 2x4gb DDR3 1600mhz Low Profile CL9 1.35v WD Blue 500GB (OS) 
Hard DriveOSMonitorPower
WD Green 4TB, 2TB Ubuntu x86_64 14.04.1 LTS ssh or vnc SuperFlower Golden Green HX 350W 
Case
Corsair 350D, GT AP-13 
  hide details  
Reply
post #5 of 6
Thread Starter 
Quote:
Originally Posted by infected rat;12714557 
This is completely normal. The value you set in the BIOS is the maximum voltage the CPU can be exposed to taking into account voltage spikes when you go from a loaded to unloaded state. This is as Intel designed it, a voltage drop from the BIOS set value, and a further drop when you load the CPU.

This bothers a lot of people and that is why load line calibration was introduced. If you enable that the value you set in the BIOS is the under-load voltage value, and there is some motherboard jiggery-pokery going on to keep that value constant as you go from loaded to unloaded.

I prefer the former situation because you know for a fact what the maximum voltage you are exposing your CPU to is. If you enable LLC you are exposing the CPU to unknown spikes (which happen far to fast for you to detect with software monitoring).

Ultimately as long as you're not near the extremes of acceptable voltages it's probably fine to enable LLC though if you'd rather see what your BIOS set voltage is as your CPU voltage in cpu-z.

Ah I see, It doesn't really bother me now that I know why it is like that. But If one enables LLC, does that mean that it will always be at the set value, meaning that the longevity of the chip will most likely be reduced ?
Cookie heart
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 3.2 GHz GIGABYTE - G33M-S2 8800 GTS 320mb 4x1GB DDR2 Kingston 800Mhz 
OS
Windows 7 Ultimate 32 bit 
  hide details  
Reply
Cookie heart
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 3.2 GHz GIGABYTE - G33M-S2 8800 GTS 320mb 4x1GB DDR2 Kingston 800Mhz 
OS
Windows 7 Ultimate 32 bit 
  hide details  
Reply
post #6 of 6
Quote:
Originally Posted by candy wrapper;12714589 
Ah I see, It doesn't really bother me now that I know why it is like that. But If one enables LLC, does that mean that it will always be at the set value, meaning that the longevity of the chip will most likely be reduced ?
It's not really clear, but as long as you're not near the limits of the chip I doubt there will be any longevity issues either way. Intel specifies a voltage drop and that the BIOS set voltage is the maximum voltage the chip can be exposed to. If you enable LLC you really have no idea what the maximum voltage your chip is exposed to. LLC is really just an illusion that lets you set a lower value in the BIOS and feel good about it.
The Oracle
(16 items)
 
Pythia
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790K Gigabyte GA-Z97X-GAMING 5 Gigabyte GeForce GTX 780Ti WindForce 3x OC Corsair Vengeance 2x8GB DDR3 1866MHz  
Hard DriveHard DriveHard DriveCooling
Samsung 256GB 850 Pro Samsung 256GB 840 Pro Westerb Digital Caviar Black 1TB XSPC Rasa ES240 + 2 GT AP-15s 
OSMonitorKeyboardPower
Windows 8.1 Pro Samsung SyncMaster S27A850D 27" LCD Corsair K70 Corsair AX850 
Case
Corsair 650D 
CPUMotherboardRAMHard Drive
i3 4130 Gigabyte GA-B85M-HD3 Corsair 2x4gb DDR3 1600mhz Low Profile CL9 1.35v WD Blue 500GB (OS) 
Hard DriveOSMonitorPower
WD Green 4TB, 2TB Ubuntu x86_64 14.04.1 LTS ssh or vnc SuperFlower Golden Green HX 350W 
Case
Corsair 350D, GT AP-13 
  hide details  
Reply
The Oracle
(16 items)
 
Pythia
(14 items)
 
 
CPUMotherboardGraphicsRAM
i7 4790K Gigabyte GA-Z97X-GAMING 5 Gigabyte GeForce GTX 780Ti WindForce 3x OC Corsair Vengeance 2x8GB DDR3 1866MHz  
Hard DriveHard DriveHard DriveCooling
Samsung 256GB 850 Pro Samsung 256GB 840 Pro Westerb Digital Caviar Black 1TB XSPC Rasa ES240 + 2 GT AP-15s 
OSMonitorKeyboardPower
Windows 8.1 Pro Samsung SyncMaster S27A850D 27" LCD Corsair K70 Corsair AX850 
Case
Corsair 650D 
CPUMotherboardRAMHard Drive
i3 4130 Gigabyte GA-B85M-HD3 Corsair 2x4gb DDR3 1600mhz Low Profile CL9 1.35v WD Blue 500GB (OS) 
Hard DriveOSMonitorPower
WD Green 4TB, 2TB Ubuntu x86_64 14.04.1 LTS ssh or vnc SuperFlower Golden Green HX 350W 
Case
Corsair 350D, GT AP-13 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › CPU voltage not showing on CPU-z ?