 |
CPU-Z |
|
CPU-Z is a freeware that gathers information on some of the main devices of your system.
CPU
- Name and number.
- Core stepping and process.
- Package.
- Core voltage.
- Internal and external clocks, clock multiplier.
- Supported instructions sets.
- Cache information.
Mainboard
- Vendor, model and revision.
- BIOS model and date.
- Chipset (northbridge and southbridge) and sensor.
- Graphic interface.
Memory
- Frequency and timings.
- Module(s) specification using SPD (Serial Presence Detect) : vendor, serial number, timings table.
System
- Windows and DirectX version.
|
|
| Directions for use |
|
Install and Remove
CPU-Z does not need to be installed. Just unzip the files in a directory and run the .exe.
In order to remove the program, just delete the files.
The program does not copy any file in any directory, neither writes in the registry.
Configuration file
CPU-Z uses a configuration file, cpuz.ini, that allows to set several
parameters for the program. The cpuz.ini file must be in the same directory as cpuz.exe.
It looks like this :
[CPU-Z]
TextFontName=Verdana
TextFontSize=13
TextFontColor=000060
LabelFontName=Verdana
LabelFontSize=13
PCI=1
MaxPCIBus=256
DMI=1
Sensor=1
SMBus=1
Display=1
ShowDutyCycles=0
TextFontName |
Font used for the information boxes. |
TextFontSize |
Size of the font used for the information boxes. |
TextFontColor |
Color of the font used for the information boxes. Value is expressed
in hexadecimal, and consists in a classic Red/Green/Blue color code : RRGGBB |
LabelFontName |
Font used for the label boxes. |
LabelFontSize |
Size of the font used for the label boxes. |
Sensor |
Set to OFF (or 0) disables sensor chip detection and voltages measurement. |
DMI |
Set to OFF disables the DMI (Desktop Management Interface) information.
This concerns BIOS vendor and version, motherboard vendor and revision. |
PCI |
Set to OFF disables the PCI information. This disables chipset, SPD and,
depending on the hardware, sensoring information. |
MaxPCIBus |
Sets the maximum PCI bus to scan. Default value is 256. |
SMBus |
Set to OFF (or 0) disables SMBus information : SPD, and, depending on the hardware, sensoring information.
|
Display |
Set to OFF (or 0) disables the video card information reported in the validator.
|
ShowDutyCycles |
Set to 1, switches the alternate clock computation method based on duty cycles. 0 to disable.
|
Note that the use of this file is optional. If no .ini file is found, default values will be used.
Parameters
-txt=report |
Launch CPU-Z in ghost mode : no interface appears, the register dump
(report.txt) is automatically created.
Example :
cpuz.exe -txt=c:\mydirectory\mysystem : runs CPU-Z in ghost mode.
Report file mysystem.txt is automatically generated in directory c:\mydirectory.
|
-html=report |
Same as "-txt" but generates the html report file. |
-core=id |
Displays clock speed of core #id (id can be set from 0 to "Number of cores minus one"). It is
then possible to check the speed of each core by running as many instances of CPU-Z as necessary, using
batch files for example :
cpuz0.bat : cpuz.exe -core=0
cpuz1.bat : cpuz.exe -core=1
Note that the current core can be dynamically selected by right-clicking in the CPU page, and select the target core. This feature is available from version 1.42.
|
-console |
Generates output in a command prompt (Windows XP only). |
Special Keys
The F5 key allows to save a screenshot as a bmp file in the application directory. These are
named cpu.bmp, cache.bmp, mainboard.bmp and memory.bmp.
The F6 key copies the current page in the clipboard.
The F7 key saves the validation cvf file in the current directory.
The F9 key switches between CPU clock computation methods.
Cache Latency Computation
The cache latency computation tool allows to gather information about the cache hierarchy of
the system. For each cache level, it provides its size and its latency. Please note that
code caches are not reported.
The latency tool can be downloaded here.
|
| FAQ |
|
Q1: CPU-Z reports my CPU running below its clock specification or the clock
speed is varying.
A: This is the effect of the CPU power reduction mechanism : C1E (Enhanced Halt State) and/or EIST
(Enhanced Intel SpeedStep Technology) for Intel CPUs, Cool'n'Quiet and or PowerNow! for AMD CPUs.
Load your system and you will see the frequency increase to its nominal value.
Q2: CPU-Z reports a wrong CPU vcore.
A: Please download HWMonitor
then save monitoring data (menu file -> save monitoring data) and send back the file to
that address.
Q3: CPU-Z causes a general protection fault, or freezes my system,
or causes a blue screen.
A: edit cpuz.ini, and replace :
DMI=1
Sensor=1
SMBus=1
Display=1
with :
DMI=0
Sensor=0
SMBus=0
Display=0
Then run cpu-z again. If it works, restore the "1" one by one, until the problem occurs again.
Then send an email and
mentionning which "1" is responsible.
Q4: Why does CPU-Z misreport my memory module specification ?
For example, my DDR2-800 is reported as DDR2-667.
A: The memory theorical bandwidth is computed using the module access time
information for the maximal CAS# latency value, included in the SPD area. If the computed
bandwidth is lower than the one specified on the memory module, that means that the SPD
information on the module is not correctly programmed, or most likely that the bandwidth
is not given at the default memory voltage, but at a voltage defined in an extended profile
(EPP or XMP).
|
| Versions history |
| Version |
Date |
News and corrections |
| 1.49 |
12/4/2008 |
Exe file properties
- MD5 (cpuz.exe 1.49) : B836E86B40D7AFAF99D9C512E8CC9FEF
|
| 1.48 |
10/15/2008 |
- Improved support for Intel Core i7 (Bloomfield & Gainestown).
- Intel Atom dual-core version support.
- AMD Athlon "Kuma" processor support.
- Alternate clock computation method based on "duty cycles" for Intel Core 2 processors (see
ShowDutyCycles in cpuz.ini)
Exe file properties
- MD5 (cpuz.exe 1.48) : DB78FBF1F99B7709240B495E59758CCE
|
| 1.47 |
08/27/2008 |
- Intel Core i7 processor.
- Intel Core 2 Duo S Mobile processors.
- NVIDIA MCP79/7A chipset.
- AMD 790GX / SB750 chipset.
Exe file properties
- MD5 (cpuz.exe 1.47) : A7484EFA3C32BC968C248CB1237FF493
|
| 1.46 |
06/27/2008 |
- AMD Puma platform (Turion & Turion Ultra "Griffin").
- AMD Black Edition processors.
- Intel Xeon EX "Dunnington".
Exe file properties
- MD5 (cpuz.exe 1.46) : C47432C41EC26156128F7B8E09E884CF
|
| 1.45 |
05/10/2008 |
- Intel Atom Z500/Z510/Z520/Z530/Z540 processors.
- Intel Core 2 Duo E7x00 processor.
- AMD 45 nm Phenom (Dened & Shanghai) processors.
- Intel P45 chipset.
Exe file properties
- MD5 (cpuz.exe 1.45) : DD4E540C04297CF93DC721166C13446E
|
|
| Validation |
|
The validation process allows to record your CPU-Z results within a database. This results in
several statistics : the overclock records (CPU, memory, FSB ...), the most popular models for
CPU, mainboards, chipsets, memory.
|
|
|
Manual validation
CPU-Z allows to save your configuration files (.cvf) on your hard drive. You can then submit them
at http://valid.canardpc.com. If you enter a
email address, you will be sent a notification with the entry ID.
Automatic validation
This method requires a connection to internet. The information are directly sent to our server, and
your validation page opens in your favorite browser. If you enter a email address, you will be sent
a notification with the entry ID.
Note : Email address is optional. If you submit it, you will receive an email with your ID,
and nothing more. The CPU-Z page with your ID will *NOT* show your email by default.
In case of problem, please send us an
email with a short
description of the issue. Please note that no cvf generated with an old version of CPU-Z will
be added.
|
| Reviews |
|
