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Originally Posted by emfung
By the way, is it really faster to run programs from iPAQ file store or from storage card? I have a 150x apacer card, how does it compare to the iPAQ file store?
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The SD card would be much, much faster (caveat: but not 150x faster, IIANM the limit of the interface is about 20x-24x). This is a result of the type of memory used, even though in hardware terms they're pretty similar. Be aware though, because of the way the PPC boots up, programs on your SD card will not be available until the OS is fully started. Therefore you'll need to keep items that need to run at startup to be installed either in the File store or in RAM - otherwise you'll get 'program not found' errors. Examples: Battery Pack Pro, SPB Pocket Plus.
Rule of thumb - if it's on the today screen, or runs at startup, install into RAM or File Store.
Apart from that - anything goes.
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Originally Posted by emfung
How much RAM do you normally set for programs?
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As much as needed - most programs don't require more than about 10MB - though sometimes web browsing demands much more. I typically have about 50MB free - but that's just my requirement. Some programs, like Access databases, will need a lot of RAM to run properly, but typical programs (PIM, calculator, most games) you won't need much at all.
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Originally Posted by emfung
Since the iPAQ file store can be used and that I've just bought this 1Gigs SD card, I'm thinking of reserving all (or most of) my RAM for programs. Is that necessary?
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Refer above. Although you will find that your PPC will run faster without too many programs installed into RAM (this is independent of how much free RAM you actually have).
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Originally Posted by emfung
How can I transfer program files stored in the RAM to iPAQ file store or storage card with uninstalling them and reinstall?
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Not without a lot of teeth-gnashing. Basically it involves a some work in the registry and modifying links. For most apps, it's a fairly basic path change. If on the other hand, it involves OLE or file registration, than it's considerably more work. Bottom line - it's a lot faster and much, much easier to uninstall and reinstall.