Follow the standard procedure of inspection of the RAM. To do this, use the utility MemTest or any similar. It will allow you to avoid a large number of computer restarts during configuration RAM. If you do not have access to the Internet, open control panel and select "System and security". Now click on "administrative tools" and open the "Windows memory Test". Specify the option "Restart now and check".
After this process is complete, open the BIOS menu. To do this, restart your computer and hold down the Delete key. Find menu Advanced Setup or Advanced System Configuration. If the data is a menu, try pressing Ctrl and F1 and search again.
Find the responsible for the parameters of the CPU and RAM boards. Find four points, which are located opposite values of the delays (timings). Change to 0.5 indicative of the last paragraph. Be sure to find the DRAM Voltage setting and increase the voltage supplied to the Board RAM, 0.1-0.2 Hz.
Save the settings and restart the computer. To do this, you can simply press F10. Now test the operation of RAM modules with MemTest or standard utility of Windows. If the system found no errors, then repeat the entry in the BIOS menu and reduce the value of the next (third) paragraph.
Perform these cycles as long as the RAM checker indicates no errors. Be sure to periodically raise the voltage supplied to the memory Board. After reducing the timings to minimum increase the bus frequency of the RAM. Recommended preliminary increase to 0.5-1 latency, not to spoil strips of RAM.