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Not 'quite' true - Physical Address Extension (PAE) will allow you to utilize more than that barrier. Although I don't think XP will. But the Enterprise editions of Windows server (and up) and various *NIX systems support that. THus allow those 32-bit systems to utilize up to 64GB of memory.
HOWEVER, that just allows you to load more apps... but most apps written for 32-bit systems won't see past the 4GB total barrier. Meaning that if even if you have an OS that can use PAE, the applications on it most likely wont' see more than 2GB (as its assuming the other 2GB is used by the Kernel).
How can a 32 bit OS see the memory beyond 4GB? Does PAE use a memory page frame/swapping system similar to the old Expanded Memory (EMS) to bring memory pages into a region than can be addressed with only 32 bits?
(2). When I shut my computer down (correctly), sometimes, and only sometimes it will beep and flash a red LED and won't start up. I can get it started if I pull the power plug from the rear of the computer completely out and wait about 10-15 seconds, replug, and then it turns on. Whats the problem and how can I avoid this situation?
Thanks for any help.
How many times does it beep and flash? It will do it a certain number of times, then pause, and then repeat.
Yes, this is exactly what it does...Why is that? I never really waited it out, just unplugged, waited a bit, and replugged & started.
Like I said, how many times does it flash and beep? It's a code that tells you what the problem is. If you tell me the number I can tell you the error code.
To verify what you have -- 32 bit or 64 bit -- you can use this little program. The very front part of it will say on my computer, "Windows XP 32-bit."
Use the create report part of it and then scroll to installed drivers, you can see if they are 32 or 64.
How can a 32 bit OS see the memory beyond 4GB? Does PAE use a memory page frame/swapping system similar to the old Expanded Memory (EMS) to bring memory pages into a region than can be addressed with only 32 bits?
There are two methods - This would probably explain it better than I ever can - not a computer architect..... Operating Systems and PAE Support
Like I said, how many times does it flash and beep? It's a code that tells you what the problem is. If you tell me the number I can tell you the error code.
It didn't do it yesterday or this morning. I'll be shutting down later to run some errands and maybe when I return it will start that beep again. Thanks again for your help.
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