1. Can Windows access memory above 4GB?
a. 32-bit - NO
b. 64-bit - Maybe (due to chipset limitations)
2. Can your processor access memory above 4GB?
a. If it's recent then it might, and if it's either AMD64 or EM64T it's almost certain
3. Does your chipset allow pages to be remapped above 4GB?
a. Probably not - and that's what's catching people who install 64-bit Vista to work around point 1 - they find they still cannot see above 4GB
In some cases, OEMs may be able to tweak their BIOS to reserve less memory for platform use, but we're not talking a huge difference (ie, 100's of MBs).
In the end a 32-bit OS and/or application can only, ever, handle 4GB of memory at a time, the AWE stuff just swaps chunks of memory in and out of that 4GB space, thus fooling the application and OS into using more space than it can "see".
Physical Address Extension (PAE), extends the physical address space to 36-bits if your HW supports this. For most operations, the processor execution units will only see 32-bit addresses, the MMU will take care of the translation to 36bit addresses. No swapping here, only page translations (which are used regardless of PAE being on or not), this is a fundamental feature of any virtual memory operating system.
The OS and apps only see 32-bit addresses because the registers are limited to 32-bits (hence the "32-bit" architecture nomenclature). These are linear addresses which are extended to 36-bits in the translation to physical addresses, but they never show up in registers since there's no room. It's all internal until the address lines coming out of the chip are toggled. Thus my comment above about "if your H/W supports this (PAE)". I'm not going into how that works...
So, the OS can happily handle up to 64 GB of memory for 32-bit PAE-able systems.
Hope this helps explain the whole, 'Why can't I see 4 Gig of RAM in my system?" thing...
BTW - This does not change for Vista either...
references:
http://support.microsoft.com/kb/929605/e...
HWJunkie DL (MSFT internal)
Bob Heath (original author of this summary material)Source(s):
SOURCE: Age of Empires 2: The Conquerors will not load.
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Thanks
SOURCE: Age of empire gold editoin
Are you having problems with the installation OR running the game?
If installation freezes at 100%, try waiting a little bit longer. It can take a little while for the installer to finalize the installation process.
You could also try copying the contents of the CD to your hard drive and running the installer from that. That way, the installer would no longer need to read from your CD-ROM to complete the installation. If you encounter an error while copying, then your CD is damaged and you might not be able to install it properly.
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