RAM upgrade

[marlingrosz]

I have a Dell Latitude D500 that came with 256 ram in a pair of 128 chips.
I replaced one of the 128 chips with a new 512 chip and now the computer won't turn on. I tried removing both the 128 chips with only the 512 in one slot and it still didn't work. Do I have to install two 512 RAM chips to fill both slots with a matching pair to get it to work? thanks for any feedback MRG

 

[PohTayToez]

Well, checking your lappy's specs on Dell's support site, there really isn't any reason it shouldn't work. Of course, computers never care if the SHOULD work or not. Likely, it's one of two problems. Either you got a bad stick of memory, not uncommon at all, and can be determined by testing it in a different machine or two. Second, sometimes certain RAM modules or combinations of RAM modules just wont work with certain boards. No particular reason for it, sometimes it just won't work.

 

[marlingrosz]

thanks - what about the PC number on the module, does it have to be the same as the module I'm replacing? anyway it's not, so was wondering if that's an issue

 

[2048Megabytes]

thanks - what about the PC number on the module, does it have to be the same as the module I'm replacing? anyway it's not, so was wondering if that's an issue

Some motherboards are picky about combining memory. My current motherboard doesn't work correctly if I combine any memory that is not the exact same model.

Try running the suspect module of memory alone in slot 0 and see if it works.

Edit: I just looked up the specifications on your motherboard and it accepts a total of 1 gigabyte (1024 megabytes) of PC-2700 random access memory.