the module number on the ram i bought is CM2X1024-8500C5D

on their website it says i should get TWIN2X1024-8500C5D

i look at newgg.com and their pictures of the TWIN2x model display on the ram as sayign CM2x...is there even a difference?

is that the problem then? nothing with having XP or using 4 ram slots? I've heard those problems in the past can happen.

Hello again,

You said before ...

the module number on the ram i bought is CM2X1024-8500C5D

on their website it says i should get TWIN2X1024-8500C5D

So, unless you bought TWIN2X1024-8500C5D you bought the wrong part number.

im guessing its defective. I just checked the part number of my current ram with CPU-Z and it is also the CM2X one.

I got it from newegg.com they have a great return policy so it should be no problem. And was on sale for only like $15.

Thanks for the help.

Hello,

Either the memory you bought is defective, or it is not listed for your system model number.

Is the part number you bought one of the numbers listed on the Corsair site? The memory pages at my web site tell why Dell systems require model specific memory or the upgrade will fail.

Hello again,

Well it seems the part numbers do make a difference.

No, nothing about XP, or with using 4 slots could cause this. The ram is not correctly installed, is defective, or the wrong part number. I hope they don't charge too much to return the RAM. :emotion-45:

It could be a possible version conflict in the ram. What are the version numbers on the new and old set? Do they match? Is the voltage stamped on the RAM label the same?

Have you tried running only the new set of RAM modules in your computer?

I did buy the TWIN2X i checked my account on newegg. But, on their picture of that item, you can see on the Ram that it says CM2X on it.

and i checked the ram inside my computer, it is CM2X as well.

see but now im not sure. I took out the old ram and only left in the new...for the 2min that it ran, i booted up CPU-Z and the results were the exact same. Then it crashed again.

From what i saw on reviews from newegg the ram, is infact 800mhz ram that was factory OC'd..although they dont let you know this. Users left comment reviews about this.

I checked one thing, my ram currently is PC2-6400 because it was OC'd from 800mhz to 1066mhz. could that be the problem? because the new ram is PC2-8500 and starts at 1066mhz normally.

Edit: the PC2-6400(400mhz) is what CPU-Z says for my Max Bandwidth. yet the part number is still the CM2X1024-8500C5D.

voltage stamped on the ram is the same, and i have not tried just the new ones, i'll do that now.

I checked one thing, my ram currently is PC2-6400 because it was OC'd from 800mhz to 1066mhz. could that be the problem? because the new ram is PC2-8500 and starts at 1066mhz normally.

Hello facedown41, That is most likly the very problem.

You would need to install the very same 800 mhz modules or remove the existing modules and install the 1066 mhz modules in all the memory slots.

Hope this helps.