At least with Intel chips, you can usually look up the product info at https://ark.intel.com. In the case of the Core 2 4300, yes it is a 64-bit CPU with 64-bit instruction set support. Happen to have an exact model of Dell PC? If you are still having trouble finding RAM modules, you could check a memory manufacturer like Crucial (http://www.crucial.com) to see if more modern RAM is backwards compatible. ​Sent from ProtonMail, Swiss-based encrypted email. ​ >-------- Original Message -------- >Subject: Re: Need: 2GB PC 4200 DDR2 533MHz >Local Time: December 12, 2017 5:24 PM >UTC Time: December 13, 2017 12:24 AM >From: cryptworks@gmail.com >To: plugaz@codezilla.xyz, Main PLUG discussion list > >Also make sure your chipset will carry over the 64 bit instructions. I have run into a  few that even with a 64 bit cpu they didn't carry it through. > > >Virus-free. www.avast.com > > >On Tue, Dec 12, 2017 at 2:55 PM, Nathan O'Brennan wrote: >>cat /proc/cpuinfo says: >> >>Intel(R) Core(TM)2 CPU 4300  @ 1.80GHz >> >> >>Which is a 64-bit instruction set. So it should be good. Regardless, if this was not a 64-bit cpu wouldn't pae address that? Or does that require 64-bit instructions also? I thought pae was specifically for that type of scenario? >> >> >> >> >> >> >> >>On 2017-12-12 14:33, Matthew Crews wrote: >>>What CPU? If it's as old as I think it is, it only has a 32-bit CPU and more ram won't help much. >>> >>> >>>Sent from ProtonMail, Swiss-based encrypted email. >>> >>> >>> >>> >>> >>>-------- Original Message -------- >>>On Dec 12, 2017, 13:15, Nathan O'Brennan wrote: >>>> >>>> >>>>I'm trying to breathe some last breaths into an old computer my kids >>>>use. It has 4 slots which are currently occupied by 1 GB DIMMS. I >>>>searched a bunch of Dell forums and some people were able to get this >>>>system to upgrade to 8GB of ram while others could only get the 4GB to >>>>work. I don't want to waste any money here, so I'm hoping to find >>>>someone who has 2GB PC 4200 DIMMS they are willing to part with? >>>> >>>>Nathan >>>>--------------------------------------------------- >>>>PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>>To subscribe, unsubscribe, or to change your mail settings: >>>>http://lists.phxlinux.org/mailman/listinfo/plug-discuss >>>> >> >>--------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >>http://lists.phxlinux.org/mailman/listinfo/plug-discuss >> > > >-- >A mouse trap, placed on top of your alarm clock, will prevent you from rolling over and going back to sleep after you hit the snooze button. > >Stephen > --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: http://lists.phxlinux.org/mailman/listinfo/plug-discuss