My system has 256MB of PC100. I installed 512MB of RAM that a coworker gave me.My computer freezes every(below

Question

minute. I removed the new RAM, the system runs fine. What could be the possible reason for this?

Answer 1

Perhaps the RAM is not suitable to your computer. You know, there's many types of RAM like DDR, DDR2, SD. Check the package whether it's fit or not.

Answer 2

First off, for those who are saying there are many types of ram, this is true,..HOWEVER, PC100 and PC133 are SDRAM and therefore would ONLY fit an SDRAM slot. So if this 512mb ram fits correctly into the memory slot we can rule out it being DDR, DDR2, etc. Memory does have specific speed rating,..ex. PC100 (runs at 100mhz clock), therefore if your 256mb is PC100 as you say, make sure the 512mb chip is not PC133 (133mhz clock). Many older computers will not run mismatched memory speeds or a standard and an EDO (extended data output) chip simultaneously. Some also have only "certain" specific memory configurations that will run also,..ex. (must have matching memory in "each" memory slot),..256mb/256mb. The fact that you have PC100 memory shows you have an older motherboard. Some of these older boards actually MAX OUT at 512mb TOTAL MEMORY. It may run the 512mb chip by itself installed into memory bank 0/1 (max memory possibly being 1GB). You will have to consult the computer manufacturers site to look up your system specs. If it max's out at 1GB both slots would run a pair of "matching" memory chips as follows: 512mb/512mb.

Answer 3

You Have The Wrong Type Of RAM OR The RAM Module Is Defective (Most Likely The Wrong Type Of RAM) Check The Specs. Of The Module To See If Its The Correct Type.

Answer 4

You just can't use any type of RAM. There is a clock speed for every RAM, for two RAM modules to work synchronously they should have matched clock speeds. Check the details. you can also try removing the old ram and using the new 512mb ram alone. that way you could get better performance.

Answer 5

There are 2 common bus speeds 100Mhz and 133Mhz (more common). Also if it's an old computer and you're using, say DDR2 it may not be compatible. Google the model no. of your motherboard and check what it can take first.

Answer 6

You probably got a stick of RAM from your coworker that isn't compatible with your computer, or your computer does not support,sadly, that much memory.

Answer 7

Either wrong RAM or defective stick.

Answer 8

It is the wrong Ram.