riz jani said:
i have Intel D915GAV motherboard ,my ram yet installed is 512MB but now i want to increase the ram .but there is problem for this how can i check my ram bus speed ?
When the computer starts up press F2 to enter BIOS and check the speed of RAM there.
It should be 400MHz as above.
Although finding DDR-400 MHz RAM might not be worth it as it is expensive and difficult to find, you may want to consider an upgrade.