BSOD – IRQL_NOT_ LESS_THAN_OR_EQUAL

If I run my computer regularly (I am running in safe mode), this message comes up and then it constantly restarts my computer. Apparently, there is a problem with my si3112r.sys driver, but I am unsure of how to fix it. Before when this used to happen, I would just be able to restore my computer using ‘System Restore,’ but it does not seem to be working any longer. This happens every few weeks, is there any way that I could fix this problem for good? I am not very good with computers.

Motherboard: (Gigabyte)GA-7N400 Pro2(Rev 1.x)
OS: Windows XP SP2

Thank you for your help.