a simple question

starscream · 02-09-03, 12:54 AM

What exactly is SDRAM and Intel StrataFlash ROM?

Also how many megs does the Axim 300mhz version have? (Or is that what the two terms above refer to?) Are there any upgradeable card I can slip in for more space?

Thanks

Iceman · 02-09-03, 10:47 AM

Starscream - you are correct, those two terms do refer to the amount of memory on the Axim. Keep in mind though, the SDRAM is the total amount of RAM on the Axim. On the 300mhz version, most of it is used by the OS. There are a few posts here that go into detail how much RAM is actually available. :)

Mike C · 02-09-03, 10:55 AM

SDRAM is Synchronous Dynamic Random Access Memory, usually referred to as RAM in the Pocket PC, and ROM is Read Only Memory (which can also be written to with special steps being taken).
In the Axim, the pre-loaded software (about 27mb worth) is held in ROM, where it does not need any power to be kept intact.
The unit ships with both batteries out. The 300mhz X has 32mb of ROM, and the 400mhz has 48mb.
This may be vital to upgrading the OS in the future, if more than 32mb is required. The left over ROM is made available as writable memory to the user and is referred to as Built-in Storage.
When the unit is powered up, the programs stored in ROM are run and operating files are read into RAM, which does need power to remember stuff. All your files and programs stored in RAM will be lost if ever both batteries are removed at the same time, or a hard reset is used.
The 300 has 32mb of RAM, and the 400 has 64mb.
The RAM is divided into Program Memory and Storage Memory, so with the 300 you must be very thrifty with stored files as it uses up space the operating system may need (usually less than 12mb req).
Add-on Memory cards can be used to store files and programs, and do not require power to remember, which is what is meant by non-volatile memory. SD/MMC cards in one slot and CF-I or CF-II in the other slot.

starscream · 02-09-03, 03:46 PM

Thanks for the help.
I'm looking towards the 300 mhz for the price factor. But an add-on card will be neccessary.
What is the difference between a Secure Digital Memory card and a compact flash card?

And is it safe to pull those suckers out and swap them, should the moment call for it?

Also, if there is so little space, is it possible to simple install all follow up sofware straight onto the card, or is that not adviced, and I shoud stick to installing software into the machine itself, and use the card for files.

Thanks, This forum has been very helpful and I really appreciate everyones help

Mike C · 02-09-03, 06:13 PM

SD/MMC cards are smaller and more expensive than CF, but they work the same. They can be removed as long as they are not being written to.
A lot of people put programs on memory cards, but I havn't done that yet.
The CF slot is capable of using expansion devices like wireless cards, cameras and GPS, but the SD slot is supposedly only good for memory use.

02-09-03, 07:41 PM

How can you tell if you are getting close to capacity on the amount of progams and stuff that you can have on it at one time?

Also I have been very timid about using mine, putting programs on it or running it where I am not able to recharge the battery if need for long periods of time. Can you give me some hints on how hard I can really push my Amix?

starscream · 02-09-03, 07:45 PM

So it might be worth it to get the 400 mhz with more RAM for the sake of programs, then use the cards for files. Hmmm...

Any thoughts on this?

Dell is having an awesome sale on these Axim and I would like to purchase one this way before the sale is over.

Mike C · 02-09-03, 08:02 PM

Check the memory in use at Start, Settings, System, Memory with various apps open. I hardly ever see anything more than 13mb in use for programs, usually more like 8, so if you keep 18 or 20 free, you should be covered and will have the rest for program/file storage.
I have quite a few programs installed to main memory on the 400, but I'm holding it to 25mb.
I havn't touched Built-in Storage at all yet.