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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Satellite Pro M15-S405 - BIOS needed.


You can download BIOS updates and any/all the Windows XP
device drivers for your model laptop from the Toshiba WEB site from their download page. Make sure you enter the model of your laptop so you
can get the correct drivers. Use this link: -
http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp
http://blitware.com/adpages/driverfetch/manufacturer/?manufacturer=Toshiba&gclid=CMOVxNCBx6ACFSgnawodoHNGbA

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Here is a disassembly guide for your laptop:
http://www.irisvista.com/tech/laptops/Toshiba-Satellite-Pro-M10/replace-laptop-motherboard.htm

Not every screw is required to be removed to take out the keyboard but to replace a fan you most likely will have to since the machine needs to be entirely opened up.

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1 Answer

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  1. Check you are really using the right CDs
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toshdmi10.exe

Run the program, it will explain how to make a boot CD which you will use to start your computer and fix the problem that makes it say Wrong Machine.
Once this is done you can use the recovery cd's again.

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Press the Fn and F9 keys, that should turn it back on. Let us know if that solve your issue and please dont' forget to rate this posting.

Feb 09, 2007 | Toshiba Satellite Pro M15-S405 Notebook

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