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I need to find upgrade information for toshiba sat. L305pS5921

What are the upgrade limits for the Toshiba Satellite L305-S5921 and on the installed devices so I can check compatabilty with removing VISTA and installing XP-PRO SP3?

Specifically, how big of a hard drive can I install and will it support a higher speed drive than the installed 5400 rpm one?

Also, it says there is no second hard drive installed. Does that mean that I can install a second internal harddrive and if so, what is involved?

I have tried looking all over the Toshiba website and even called their tech support people but could not get any useful information.

Thank you.

Don Jones

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  • donejjones Jan 16, 2009


    I wasn’t clear enouogh aobut my question. I was NOT speaking of “downgrading” per se but of FDISKing the hard drive and doing a clean install with XP. That will work just fine IF the XP drivers are compatible with the various devices on the computer. That is what I’m trying to determine is how can I determine that BEFORE wiping out the directories on the hard drive.

    I was hoping for a source of finding out the exact components on the computer by model number BEFORE I bought it so that I could verify if there were XP drivers for them. If anyone can give me that, I would appreciate it.

    I appreciate your comments about the problems with upgrading to faster hard drives in laptops. Those are issues that I hadn’t thought of. Also, the information about not being able to notice the difference between the 5400 and 7000 rpm drives was information that I was curious aobut but didn’t think to ask.


    Thank you for the information. That was pretty much what I thought and had been told. I was just trying to be sure before buying something that I might regret.

    DOES ANYONE know of any significant problems or things that I’m going to hate in transitioning from XP PRO to VISTA or am I just being obstinate?

    Thanks again to everyone for their help.

    Don Jones

  • donejjones Jan 16, 2009


    I was aware of that, but I'm having a heck of a time finding out eactly what the components are in the Toshiba L303-S5921 before I buy it.

    If anyone can help me find out what the various compnents are before buying it and getting into the hardware lists, I will sure appreciate it.



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There are a couple of generalities that apply to all laptops and Windows. The maximum amount of RAM that can be installed is 4GB. You may see advertisements or more but they are a markteting ploy. Unless you work at MIT and try to run mathematical problems to detemine the width and depth of the sun, 4GB is all the normal memory it can handle. Second, on the larger 17" laptops can handle a second hard drive. And even those are few. Obviously if you had a desktop it would not be an issue but laptops are made for mobility first, so you cannot add a second hard drive. Third, again because laptops are so small, heat is a big issue. The faster the hard drive the more heat you will produce and then you will have problems as you cannot adjust the cooling system like you could on a desktop. So stick with the 5400rpm. Besides, I have tried a 5400 vs a 7200 rpm harddrive and it was not even noticed. The best thing you can do for speed is max out your memory. That will get things moving faster. Finally, last time someone tried to go from Vista to Windows XP, could not be done. Microsoft had already thought was ahead of you. No one that I know of, nor have I seen any research that anyone was allowed to downgrade. Microsoft has programmed it so it cannot be downgraded. If you do try it make sure you backup everything and keep the Vista disk handy to reinstall as your system will not be stable. Well I know its not all what you wanted to hear but I gave you honest answers. If you want to dual boot and change drives and all that fun stuff, then you need a desktop they don't have the space restrictions. Thanks for using FixYa, let me know how it turns out. Don't forget to rate this soluton with four stars. Take care.

Posted on Jan 16, 2009

  • Randall  Trahan
    Randall Trahan Jan 16, 2009

    Yes there is a place you can check each component and see if it is compatible with XP. Microsoft maintains a Hardware Compatibility List. Before we install any hardware we compare it to the operating system on the Hardware Compatibility List to ensure it will work. If you go to do a search on Hardware Compatibility will have to do each component separately but that should be ok...? Let me know if you have any problems finding it and if that is what you are talking about...

  • Randall  Trahan
    Randall Trahan Jan 16, 2009

    Here ya go, check this website on Toshiba web site...I think it will give you a good idea. But, now that I understand exactly what you are doing you are not going to have a problem. Why? Because if there is a driver mismatch, then you go into Device Manager, right click on the device, and click on update driver...then the one that is compatible will automatically download...good luck...keep me updated if you need more.


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AS this is a relatively new Laptop(made in the last 5 years) you should have no problems downgrading to WinXP
This latop can be upgraded to the newest large hard drives,,,and spinning speeds of 7000 rpm,,or 10,000 rpm(costly)
Instead of going through the hassle of trying to install a secong hard drive(some laptops will take one where the battery mounts presently) just get yourself a USB External hard drive,,,any brand,,,any model,,it will work.

Posted on Jan 16, 2009

  • Alex M
    Alex M Jan 30, 2009

    Sorry to disagree with Cajun but i have done the downgrade to WinXp many times and on Many PC's and Laptops,,,all where successful, although not all of them went smoothly.



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