I just tried putting the Mushkin into Slot #1 and leaving out the stock ram completely. Boots up fine, but only shows 256mb RAM total.
So I can't seem to get more than 512mb, and that's with both in at the same time, with the stock 256mb stick in Slot #1 and 1GB Mushkin in Slot #2.
My system is capable of running up to 2GB of RAM total, according to specs.
I have a three year old Celeron (2.20Ghz) computer with a stick of Apacer PC2100 256mb of RAM as stock. I just came back from Fry's with a 1Gig stick of Mushkin RAM (PC2100).
I installed the Mushkin into RAM Slot #1 (replacing the stock RAM) and moved the stock RAM into Slot #2(previously unoccupied). Turned on computer, and got a message saying that I had a corrupt or missing file and to check ".../system32/DRIVERS/..." or my boot/recovery CD ROM. Alrighty then; troubleshoot time.
Removed Mushkin, put stock stick back into Slot #1. Computer booted up fine. Shut it back down and put the Mushkin into Slot #2 (leaving the stock RAM in Slot #1). Computer boots up fine, but now says that I have a grand total of 512mb or RAM. Ehhh?!?! Last time I checked, 1Gig plus 256mb does not equal 512mb (my math isn't THAT bad).
So what do you guys think? Missing/corrupt file, bad RAM, incompatible RAMs, need drivers (couldn't find drivers on Mushkin website), or I'm stupid and missing something completely obvious?
Thanks for the help!
-The Short One