OEM producer fired Dual machines on the market without the correct settings. According to the site Notebook Review, machines sold through retail with Windows XP SP2 on board were not configured appropriately.

It seems that Windows XP2 not automatically recognize on what processor it is installed on or not, so the setup was to be done manually. Not configuring Windows XP properly, the results can be obtained in such dire games like Oblivion.

To verify the settings need to make sure that the system did not optimized to work under dvuhyadernom processor - CTRL + ALT + DEL → speed.
Konfiguruem Windows XP under the Dual System

1. For Intel processors. Check whether the required upgrade installed Windows XP Hotfix Patch: KB896256 (not automatically loaded via Windows Update). If not - download and install.

For AMD processors. Check whether a mandatory upgrade Windows XP Hotfix Patch: KB896256 (not automatically loaded via Windows Update) and AMD CPU driver. If not - download and install (for AMD Dual Core Optimizer).

Comments for AMD:

* Install driver AMD CPU only when you have a processor from AMD.
* AMD Dual Core Optimizer (Optimizer for dvuhyadernogo processor AMD Dual Core) was a response to the removal of Multi-Core defect from Microsoft (with the first to get the upgrade, it was necessary to communicate by mail with Microsoft). AMD made its publicly Optimizer. If it is already installed and is working properly, there is no need to install Windows XP Hotfix Patch KB896256.



After installing Windows XP Hotfix Patch KB896256, type Start Menu (Start) → Run (Run). Dial REGEDIT, and press Enter. Windows XP under the Dual System

2. In the registry editor go to branch HKEY_LOCAL_MACHINE \ SYSTEM \ Current Control Set \ Control \ Session Manager, which must have an Throttle, if not, then it needs to be a (right-click on the Create Session Manager → → Section, called Throttle).

3. Section Throttle be Perf Enable Package Idle parameter type DWORD value to 1.
Windows XP under the Dual System

If not - create named Perf Enable Package Idle DWORD type and assign the value 1.

4. Exit Registry Editor.

5. See, if there was a key / usepmtimer in boot.ini file (My Computer (My Computer) → in the window right mouse button → Properties (Properties), select the tab ADVANCE (Optional), and then in the Startup and Recovery (Load / Restore) press on Settings (Options), and then press the EDIT (EDIT)). If not - insert (not the entire file boot.ini example