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FSXA default 747

mgh said:
But 4Gb is only available on 64-bit Windows
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You know that is correct but not entirely. Some X86 or 32bit is limited to 2gb physical with another gig or 2 available in virtual memory, however on win XP/vista 32bit you could get 4gb physical memory with additional virtual memory. With 64bit you expand to 190 something gig physical for the higher releases, under 20 for home or stater editions.

The same holds true for other operating systems. 32bit can use 4gig physical and more VRAM, 64bit can run up to 190's plus vram.
There is a formula to make the calculation to determine the limit of the processor memory, I cant recall it right now but its like 64 to the 2nd power or something, similar for 32 bit

There is a Microsoft table that shows this somewhere, let me try to find it.

Update:
Found it
http://msdn.microsoft.com/en-us/lib..._cards_and_other_devices_affect_memory_limits

In my venture to find the actual formula, I came across another term and page.
Yottabytes
May the numbers be with you.
http://www.csgnetwork.com/memconv.html
 
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That's what I was expecting a 512mb videocard will do that. I had the same experience until I upgraded to a 1GB videocard. now have a 2GB card.
 
mgh said:
The table shows that 4Gb is only available in 64-bit Windows, just as I said.
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4gb is available in x86 platforms, AKA 32bit, whether or not it can all be used by one software is another story.
This isnt factoring virtual memory or paging. Its physical.
64bit physical limitation is above 4gb.

Physical memory is not the same as video/graphics memory nor virtual memory.
 

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The attached figure (from your link) shows that a 32-bit application on a 32-bit system has only 2 Gb of addressable memory VAS (which is what this sub-thead is about) unless IMAGE_FILE_LARGE_ADDRESS_AWARE and 4GT are set when it can have up to 3 Gb (still less than 4 Gb) provided the remaining 1 GB isufficient to allow the system to run.

It also shows that a 32-bit application on 64-bit still only has 2 Gb unless IMAGE_FILE_LARGE_ADDRESS_AWARE is set to give it 4 Gb. By default, IMAGE_FILE_LARGE_ADDRESS_AWARE is not set, so that 32-bit applications' .exe files have to be patched before they can use 4 Gb.
 

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FSX is made with large adress aware flag set. I imagine HIGHMEMFIX actually triggers the functionality.
 
mgh said:
The attached figure (from your link) shows that a 32-bit application on a 32-bit system has only 2 Gb of addressable memory VAS (which is what this sub-thead is about) unless IMAGE_FILE_LARGE_ADDRESS_AWARE and 4GT are set when it can have up to 3 Gb (still less than 4 Gb) provided the remaining 1 GB isufficient to allow the system to run.

It also shows that a 32-bit application on 64-bit still only has 2 Gb unless IMAGE_FILE_LARGE_ADDRESS_AWARE is set to give it 4 Gb. By default, IMAGE_FILE_LARGE_ADDRESS_AWARE is not set, so that 32-bit applications' .exe files have to be patched before they can use 4 Gb.
Click to expand...

This is a statement of Semantics, granted I am no expert nor do I claim to be, Ive been around pc development for a number of years, all the way back to the early days of alphabet Basic. I do see where you are coming from though. I was referring to limits, you were referring to usability determined limits.

I am not trying to nor do I want to argue over this, as we are both right. Your statement was 4gb is not available on 32bit systems. Whether fixes or patches applied or not, it is capable, which was my point.
You wouldn't say you dont have a car if you have one sitting in the driveway with a flat tire that cant be driven without minor repair.

With all that said, I do appreciate your comments. They are well intentioned and I am sure someone has or will learn something by reading this, I know I have learned I need to be like GaryGB and include ALL relevant information, not just the primary parts.

We both have great knowledge to offer the community, let this one end here and a truce be called so we can all work to better ourselves and our sims.

My apologies to anyone who may think this was a hijack. It is not, just tried to cover all bases and it skewed outside the line a little bit.

BTW, back on topic, the GTX550Ti Nvidia card actually has a minimum of 1gb. There are other versions that have higher I think. Apparently there is a flaw/defect in the makeup of the card. Something about it can only use 768mb of its memory. I havent researched much on it, but here is one tech-review I saw on it with more.
http://techreport.com/review/20573/nvidia-geforce-gtx-550-ti-graphics-processor
 
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pfabian said:
FSX is made with large adress aware flag set. I imagine HIGHMEMFIX actually triggers the functionality.
Click to expand...

My understanding is that HIMEMFIX only deals with a graphics problem in FSX and doesn't incease VAS.

The IMAGE_FILE_LARGE_ADDRESS_AWARE flag indicates the application is aware that large addresses exist and won't crash if it is given an address above the 2GB boundary. However, it will never be given such an address on 32-bit windows unless the 4 Gigabyte Tuning (4GT) is enabled for Windows. This makes up to 3Gb available to the application. The downside is the reduction for Windows which can cause it to crash so it's possible to give the application less than 3 Gb. The user needs to set 4GT on 32-bit Windows. IMAGE_FILE_LARGE_ADDRESS_AWARE flag is all that's needed on 64_bit Windows.

FSX SP2 sets IMAGE_FILE_LARGE_ADDRESS_AWARE flag in FSX
 
mgh said:
My understanding is that HIMEMFIX only deals with a graphics problem in FSX and doesn't incease VAS.
Click to expand...

I asume the same.

FSX SP2 sets IMAGE_FILE_LARGE_ADDRESS_AWARE flag in FSX
Click to expand...

I thought it did but wasnt 100% sure. I know I mentioned somewhere FSX SP2 fixed that issue with memory management.

Do we know if the issue is still occuring or has a solution been found other than hardware replacement and lower sliders?
 
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mgh said:
I don't think FSX has been changed since SP2/Acceleration.
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It hasnt; Acceleration is SP2, and was released a few years back after FSX was initially. FSX Gold is just Deluxe and Acceleration bundled.
ACES was released in 2009 and the team formed Cascade Game Foundry. They release a scuba simulator some time ago but IDK what their future projects are.
Some aces guys went elsewhere in the industry.

Regarding my statement,
"Do we know if the issue is still occurring or has a solution been found other than hardware replacement and lower sliders?"
It was referring to jterr, whether he/she got a fix or still has issues with it. Not if FSX still has issues. I probably could have worded it a little differently as it did leave room for misinterpretation. Entirely my fault.

My understanding that P3D is basically FSX, and Lockheed Martin has licensing to modify and update upon P3D but they can not do anything to FSX as MS still holds the rights to it and LM modifying or building upon FSX would violate contractual, copyright, and trademark restrictions. Building upon P3D and converting, non-commercially, to FSX would be ok but LM can not without MS approval.
 
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