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RAM drives

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Hello,my original intentions were to upgrade my current RAM, CPU and video card but with my current PC someone said it might not be possible. So someone else suggested RAM drives. My current problems are that I get freezes, CTDs and out of memories. Will the RAM drives fix these and give a better performance or am I better off with a new PC?Thanks

Joe Barton

PMDG_T7_sig.jpg

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Would help if you posted your complete specs, including OS, what CTD's you get and your settings + CFG tweaks.The amount of physical RAM doesn't have anything to do with OOM errors, as long as you didn't disable the page file or something

The amount of physical RAM doesn't have anything to do with OOM errors
Huh?What does cause it then?? and if thats the case why do you have 8gig? ( or anyone else for that matter)Very interested, as i had OOM's, put another 2 gig in and still have them..now i dont know wot to do.

Regards

Luke M

Huh?What does cause it then?? and if thats the case why do you have 8gig? ( or anyone else for that matter)Very interested, as i had OOM's, put another 2 gig in and still have them..now i dont know wot to do.
I added 4GB to run virtual machines (4GB for Windows 7, 4GB for Linux), anyway, with current RAM prices there's no reason not to get 2x4GB really8GB (2x4GB)OOM means you're running out of virtual memory, not physical memory. When you run out of physical memory the system starts using the page file to alocate data, which will effect performance but won't trigger OOM'sWhat's your OS? is it 32b or 64b? do you use a high LOD (>4.5) in the fsx.cfg? The later will increase massively the amount of virtual memory in FSX, while the former will determine wether you have 2GB (32b OS) or 4GB (64b OS) of virtual address space available to FSX. Obviously in a 32b OS with a 2GB VAS limit (or 3GB with the "3GB switch") it's easier to get OOM's than in a 64b OS

Hi DarioIm on 32b, 4 gig installed ram (3.25 used) (64b coming soon :D)I changes my LOD to 5.5, didnt like it, went back to the CFG and it was put back to 4.5 by itself.. ? ( but the effect of 5.5 still remains in the sim)So am i able to 'up' my virtual memory on my 32b system, or will it be useing all that is availible already?( im not to keep on the 3 gig patch)Thanks

Regards

Luke M

Hi DarioIm on 32b, 4 gig installed ram (3.25 used) (64b coming soon :D)I changes my LOD to 5.5, didnt like it, went back to the CFG and it was put back to 4.5 by itself.. ? ( but the effect of 5.5 still remains in the sim)So am i able to 'up' my virtual memory on my 32b system, or will it be useing all that is availible already?( im not to keep on the 3 gig patch)Thanks
So if your OS is 32b when FSX hits 2GB of virtual memory (and it's not that hard in dense scenery areas) boom, OOMIn a 32b OS each application is limited to 2GB, and 2GB more for the kernel (the OS so to speak). You can use the 3GB switch to make it 3GB for apps and leaving 1GB to the kernelIs it Win 7 32b? If it is, this is how you do it:Open a command prompt as administrator and type
bcdedit /set increaseuserva 3072

and press enterBack up your system before doing it

Hi DarioYes win 7.Are there any side effect to this switch? Its not used soley for fsx.Also, the best way to back the system up? ( 16 gig free on secondary HD and lots of space on external HD)Thanks for advice.

Regards

Luke M

Hi DarioYes win 7.Are there any side effect to this switch? Its not used soley for fsx.Also, the best way to back the system up? ( 16 gig free on secondary HD and lots of space on external HD)Thanks for advice.
I use Acronis, but Windows 7 has a system imaging utility and restore points
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My specs are windows vista64bit Dual core CPU 2GB RAMMy RAM is the issue for the freezing, it happens when I use the NGX in a dense scenery or using it with FSINN while online

Joe Barton

PMDG_T7_sig.jpg

If you know for a fact it's a RAM issue, go ahead and get more, but a lack of RAM doesn't lead to crashes, just poor performance

  • Author
If you know for a fact it's a RAM issue, go ahead and get more, but a lack of RAM doesn't lead to crashes, just poor performance
but I don`t have as much crashes than freezes so will it still do any good?

Joe Barton

PMDG_T7_sig.jpg

but I don`t have as much crashes than freezes so will it still do any good?
No idea. You need to diagnose the problem.Does it happen only in FSX or other applications hang too? only certain A/C? which ones?What's your COMPLETE system? is it overclocked? Any tweaks in FSX or the OS?What COMPLETE FSX settings? have you tried different combinations of setting to see if there's something in particular there that triggers the freezes?Addons? do you get the freezes in some particular areas?
  • Author
No idea. You need to diagnose the problem.Does it happen only in FSX or other applications hang too? only certain A/C? which ones?What's your COMPLETE system? is it overclocked? Any tweaks in FSX or the OS?What COMPLETE FSX settings? have you tried different combinations of setting to see if there's something in particular there that triggers the freezes?Addons? do you get the freezes in some particular areas?
for me it only happens in fsx and when using add on aircrafts like the pmdg 747x and NGX. And also when FSinn is used it lags a bit. I suspect its my RAM because its 2GB and fsx is a 32bit app so to over come that I should get more RAM 4 or to be safe 6. Correct me if Im wrong

Joe Barton

PMDG_T7_sig.jpg

for me it only happens in fsx and when using add on aircrafts like the pmdg 747x and NGX. And also when FSinn is used it lags a bit. I suspect its my RAM because its 2GB and fsx is a 32bit app so to over come that I should get more RAM 4 or to be safe 6. Correct me if Im wrong
Truth is it won't hurt to add some RAM, and it won't cost you too much either. 2GB won't cut it with FSX, NGX, scenery addons, OS... Adding another 2 o 4 GB should definitely help with performance.
  • Author
Truth is it won't hurt to add some RAM, and it won't cost you too much either. 2GB won't cut it with FSX, NGX, scenery addons, OS... Adding another 2 o 4 GB should definitely help with performance.
cheers mate,I think Im going to add 6 or 8GB of RAM. But I need to check how many RAM slots I have first

Joe Barton

PMDG_T7_sig.jpg

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