Advice 1: Why it works one core

Multicore processors have multiple cores, allowing both to occur in a single processor two or more programs. Processors with such a device is able to perform more operations than a similar single core processor.
Why it works one core
Part of cores of multi-core processor can be disabled by the manufacturer of the processors that are not detected by the operating system when installing or parked it to save power. And just not used.Modern multicore processors have high power consumption. It helps to reduce temporarily disabling one or more cores by the operating system of the computer when the CPU load is very small, and there is no need. It's called a Parking of kernels whose settings are hidden by default from the "control Panel" of Windows 7. To determine what kernel is parked, you can use "resource Monitor" that runs from the "task Manager". Under each chart, a parked core on the tab "CPU" it says "Stopped". If you see this sign, it means your computer is activated the setting of Parking cores. If for some reason they are stopping you, you can disable them under "power Management processor" additional parameters of the current power plan. To do this, set the value of the parameter "Minimum number of cores in the idle state" - 100%.Some multi-core processors only one core or all available, because the others are disabled by the processor manufacturer. Such processors may have a defect in one or more nuclei, which prevents their normal operation. Not to cull the entire crystal, the manufacturer disables defective - and sells crystal as a processor with fewer cores. This approach is used, for example, for two-trehyadernye AMD Phenom II X2-3 and trehyadernye Athlon-II-X3, in which you can unlock the 3 and 4 - using the Advanced Clock Calibration utility or through the BIOS of some motherboards. But the unlocked cores, you should thoroughly test for stability and if errors occur, they will have again to turn off. Otherwise the computer will experience serious failures.Only one core can work if the operating system mistakenly identified the processor as a single core during setup. The number of cores in some cases mistakenly identified the first version of the operating systems in which their support was enabled. It operating systems such as Windows XP c Service Pack 2. These operating system versions are deprecated. The easiest way to get to work the second - in this case, is to install the operating system a more modern version.Multi-core processors is relatively recent. The first dual-core processors by Intel and AMD came in the spring of 2005. Programs that have been released up to this point, is not designed to work with multicore processors. During operation, they use only one core. Likewise, some very simple programs also do not involve more than one nucleus.

Advice 2: How to disable -

Disabling processor cores usually require you to run any outdated programs. You don't have to torture your computer configuration in the BIOS, sometimes just enough to run the program in compatibility mode.
How to disable -
You will need
  • program emulator.
Instruction
1
Disable the second core of the CPU using a setup item HyperThreading. To do this, restart the computer, when it loads press Delete and if required, enter the password on the BIOS.
2
Using the arrow keys to navigate through the program menu of the BIOS, look for settings, HyperThreading, this feature in some models of motherboards is responsible for activating a second processor core. Uncheck use.
3
Apply the changes on exit of BIOS. Similarly, a return operation of the second core when needed, just by enabling HyperThreading. Remember that this method is valid not for all models of motherboards and processors.
4
If you need to change the number of cores to run a particular program (often this applies to games and applications to the year 2000), use the application compatibility with the operating system. To do this, click the right mouse button on the icon of the desired program, click "Find object", click in the folder again, right-click the startup file and open the context menu.
5
Select one of the tabs of the properties of the function run in compatibility mode with earlier versions of the Windows operating system. Try to specify among them one that the release date is most consistent with your program. Apply the changes.
6
If you use compatibility mode, try installing on your computer special programs-emulator earlier versions of the operating system, the kind you might find in free access in the Internet. Open the program only after starting the emulator, because otherwise there will be no result from its use.
Note
Be careful when working in the BIOS, because it is responsible for the work of all equipment.

Advice 3: How to enable second core XP

The second processor core is usually enabled by default in Windows XP, but some programs require it to disable to operate correctly. After that, it may be difficult to return to the original settings.
How to enable second core XP
You will need
  • - optimization program.
Instruction
1
Make sure that the second core of the processor is disabled. To do this, open Windows task Manager by pressing Alt+Ctrl+Delete or Ctrl+Shift+Esc then navigate to system performance. Notice how many parts is divided the download box CPU, if two, both cores are turned on and functioning at the proper level.
2
In the case where there is only one - two in the operating system Windows XP, download and install an optimization program that configures the operation of the processor. After installation go to manage your computer's hardware and activate both cores of the processor. Mandatory, restart the computer, even if not required by the optimization program, do not forget to save the changes.
3
To test the operation of both cores on the machine turn it on and run any game or program's system requirements which suggest that you have a dual core processor. Run task Manager and in the view tab of system performance, review the workload of both elements. It may be different for them because the load is not always distributed equally.
4
Turn on the second core of the CPU using driver rollback motherboard installed in your computer. To prepare a driver for installation, best updated version. Reinstall the software, then again restart the computer.
5
Check the operation of both cores in device Manager. This sequence works in very rare cases. You can also try a system restore from an earlier condition, but in this case, will be cancelled and the rest of the changes over a period of time.
Useful advice
Less likely to make changes to the operation of the processor.

Advice 4: What is the CPU core

When choosing a microprocessor is to pay special attention to the characteristics of the nuclei. They determine the compatibility of the CPU with the motherboard and your computer's performance.
Dual core processor for PC
- Is part of the microprocessor that executes a single thread. It, being the main part of microprocessor, determines the majority of its parameters. Among them we can mention the socket type, the frequency of the internal data bus (FSB), the operating frequency of the processor.
A socket is a socket for mounting the processor.


The characteristics of the kernel



There are three main characteristics of the core: voltage and heat, the process, the amount of internal cache first level and second level.
Heat kernel affects the heating of the processor during operation.


The cache is a cache memory. It is used by the CPU to speed up access time to computer memory. Cache memory in modern computers has two levels. Each processor has a private cache of the first level. It is integrated into the processor core. If the processor has two cores and a memory of the second level they have in common in this case is only one processor. The processor core can be full only when there is a private two-level cache memory. Basically, these processors are used in powerful servers and computers.

Dual-core processor



For the minimum configuration is enough to have dual core processor. Moreover, it is used in tablets, smartphones and mobile computing devices.

First dual core chip was massively used in 2005. It was called the Pentium D. basically, the chip used on servers without installation in PC.

CPU (Central processing unit) is a crystal, the surface of which are microscopic transistors, resistors and conductors. Also on the sputtered gold contacts, which is mounted in the housing, and then into the chipset.
Chipset is a set of interacting circuits.
Thus it is possible to provide inside the two chips of the crystal, interconnected and operating as one entity.

The number of cores, different from the units are designed to distribute the tasks. For example, a user browses the web sites are overloaded with scripts. When working CPU with two cores, and site pages will not to be a burden on memory, since the processing is each core in parallel and there is a call to the cache memory.

Advice 5: How to enable second core

In personal computers or laptops with dual core processors running Windows XP, most default involved two cores, however some of the programs to work correctly, require that you disable one of them.
How to enable second core
Instruction
1
Make sure that the second core of your CPU disabled. To do this, open the task Manager with the help of simultaneous pressing of keys Ctrl+Alt+Delete or Ctrl+Shift+Esc.
2
Then click the Performance tab. Let's see how many Windows are divided from the part of the "CPU" (CPU usage). If you have two Windows CPU usage is at appropriate levels, there are both core. If the window is one, respectively, included only one core of the processor. In the second case, you must perform the following steps to enable second core.
3
Download optimizing Windows XP and install it on your computer. It will allow you to properly configure the CPU. Go after the program is installed under"manage hardware" on your computer and activate the second processor core.
4
Restart your PC or laptop, in this case restart is required, even if this will not require optimization program. After you change the settings don't forget to save the changes by clicking on the appropriate button - "OK".
5
Check the operation of the processor and its cores. To do this, turn on the computer. Run any program or game, the system requirements which include a dual-core processor.
6
Run the task Manager (Ctrl+ Alt+Delete or Ctrl+Shift+Esc), go to the Performance tab. View the workload of both elements of the processor. If you have two Windows, so all actions are done correctly and the second - system included. In this case, remember that the load on each of the cores may be different, as it is not always distributed equally.
7
To enable the second core processor and a slightly different way. Install the driver rollback for your motherboard. Reinstall the software, to do this it is best to use updated versions of the programs. Restart the computer, check the both cores in device Manager as described above.

Advice 6: How to enable the second processor core

Some applications are stable only when using a single core Central processor. After disabling unnecessary cores can be some difficulties associated with the return of the original settings.
How to enable the second processor core
Instruction
1
If you notice that the second - installed Central processor is not functioning, immediately determine the cause of this failure. First check the boot options of the system. Click "start".
2
Click "Run". For quick access to a specified point, use the combination of Win key and R. Type msconfig in the running field and press Enter.
3
Select the tab "Download" at the top of the work window. Highlight with the left button of the desired operating system if you are using a different OS. Click "advanced settings".
4
Check the box next to "Number of processors". In the drop-down menu, select the number 2. Be sure to uncheck the item "Debug" and "Lock PCI". Click Ok and click "Apply". Close the settings menu and restart the computer.
5
After loading the operating system, press Ctrl, Alt and Delete. In the running menu, select "device Manager". Open the Performance tab after you run the new menu.
6
View the number of cores in the column "Chronology CPU". Now make sure that your programs use both cores of the Central processor.
7
Open the Processes tab. Kiknite right-click the name of the desired program. Click "Set line" (Windows Seven). Launch window with the title "process matching".
8
Select the checkbox "All processors" or alternately specify each individual core. Click Ok and repeat this procedure for the other important programs.
9
If after restarting the computer programs still do not use all cores, set the CPU Control utility. With its help configure the operation of the Central processor , and set rules for specific programs.
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