Question about Toshiba Satellite Pro M15-S405 Notebook

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Toshiba Satellite Pro M15-S405 Memory upgrade problem

Hello, this computer shipped with 2 x 256 megs of ram. I ordered the correct ram to replace the existing 512 megs of ram with 2 x 512 meg chips. When I installed both of these chips the computer ran for about 5 minutes and then blue screened. It then won't start up after that and has a Blue Screen that says something about "ACPI". I can put one 512 meg chip in, and it will run fine, but if I even put in a 512 and one of the old 256 meg chips it will blue screen. So it seems anytime the ram is over 512 megs the computer has problems.I have installed the ram in another computer and it works great. It doesn't act like bad ram (i have swapped the 512 chips and have gotten the same problem), it seems like there is something wrong withe the computer itself. Has anyone experienced this or know why this happens? Any help would be greatly appreciated. Thanks

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This usually happens when the laptop is not able to take more then a certain amount of memory, as the system BIOS does not support higher. By saying ACPI as the blue screen, that tells me that the power subsystem does not 'like' having more then 512MB of RAM. I am 95% sure this is your BIOS because of that information. Check and see if you can find a BIOS upgrade for your computer model, and that might fix the issue, if an update is available.

Posted on Feb 05, 2009

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Posted on Jan 02, 2017

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