Having problems with your Toshiba Satellite A135-S4527 Notebook ?

Memory upgrade not working

\015 Bought pair of 2GB chips to upgrade my Toshiba Satellite A135-4527 laptop to 4GB. When I installed chips, the system wouldn't boot. However, each of 2MB the chips works fine by itself. I checked the memory slot and each of the mods works in either of the two slots alone, but when I combine them, the system won't boot. I checked the BIOS setup and saw nothing about the setting for the 2nd slot. Is there some kind of jumper on the motherboard that I need to set to get the full 4GB to be recognized by the system? Any suggestions?\015

Answers :

Check front side bus for new ram & old ram ,sometimes if both are working on differant f.s.b. then also this can be happen
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