Unstable windows problem Bad memory?

[freeflap]

Please help with this problem:

just added another 256 ram to my non thunderbird Athlon 850. After this, the computer has become unstable, crashing and saying there's not enough system RAM. I removed the offending RAM but the problem persists. Despite the fact that I have 512 Mb of RAM already. Also, added a surge protector. Could that be the problem?

When I first loaded the ram, it only recognized a portion of it, then all of it after reboot. Any attempt to run a graphics or other heavy memory program causes the computer to "blue Screen" and say that system resources are dangerously low. How can that be? When I right click "my computer" it says 512 Mb ram, 80% system resources free.

Thanks

 

[BassDominator]

Have you checked to make sure all your memory is fully seated in their sockets? I once had a similar problem when I installed extra memory and must have knocked one of the chips slightly loose.

 

[freeflap]

When the memory is "clipped" into the socket, is there any more to do to get it to seat properly?

 

[Dulanic]

Are you upgrading from 512MB to 768MB? If so read this...

http://support.microsoft.com/support/kb/articles/Q253/9/12.ASP

 

[freeflap]

Thank you! Yes, I upgraded from 512 to 768. However, now that I removed the memory, it still is acting funny. Will I need to reload windows with only the 512?