Blue screen on start-up. Mobo SIS-741 Chipset SIS741GX Rev 03
This problem can be caused by several things. First, are the memory chips exactly identical (brand, type, size, etc.)? If not, that will definitely cause the problem. Second, how many memory slots are there? If you have four, check the manual and make sure you're putting the memory in the correct slots. Some Mobo's require that you put chips in slots A1 and B1 and not A1 and A2. Also, some Mobo's have DDR slots and DDR2 slots, so make sure you're putting the right kind of memory into the proper slots. Some people fudge the memory by putting 400 mhz memory into slower slots, and that works one chip at a time - but if you install a second, identical chip, the system will fail. If all else fails and you've met these conditions, check the type of memory to be sure of the proper fit (use manufacturer's recommended brands and numbers) or try a different chip in the second slot. One chip could be bad.