Clarification...Reduce or raise it by 128OOM can be caused by more than one factor so raising or lowering until its stable is the way to tune thatIn your case I would leave it alone. You are not seeing OOM's and it's not going to cause FSX to run bad or give you frames.. so no worries, your fine.

Great, I'll do that, Nick. Not that I want to fix or improve anything anymore, lol, but I feel userva=2332 would be a little more fair to the OS.Thanks for your time, I can't say I have understood much, but I got the tools and values to play with, all properly clipped and documented. All worked out just fine.Dirk.

Interesting... When you access the display tab in msinfo32, what is the amount of adapter memory that is reported?Reason I'm asking is that my 8600GTS with 256M physical memory is treated as a 512M adapter. Nvidia through it's driver adds another 256M of system RAM to the on-board memory and fools the operating system into treating the device as having 512M. (nvidia TurboCache)I just wonder if nvidia likewise treats a 512M video card as a 1G device..

BertThere are 7 entries for my Radeons and there is no explanation as to what the memory mapped locations are actually used for. I would just be guessing, or worse.I would be interested to see where the hardware is mapped in a 32 bit OS with only 2GB physical installed.

>Great, I'll do that, Nick. Not that I want to fix or improve>anything anymore, lol, but I feel userva=2332 would be a>little more fair to the OS.>>Thanks for your time, I can't say I have understood much, but>I got the tools and values to play with, all properly clipped>and documented. All worked out just fine.>>Dirk.2332 is not divisible equally by 64. If you intend to drop it that low, use 2304, or 2368:)

Done and saved, Nick!

Bob, go to the "Components / Display" tab and look under Adapter RAM... what number is listed?

BertMy setup is a pair of x1950's in Crossfire configuration and I have 4 entries listed there.Name: Radeon X1950 CrossFire EditionAdapter RAM: 512.00 MBName: Radeon X1950 CrossFire Edition SecondaryAdapter RAM: Not AvailableName: Radeon X1950 SeriesAdapter Ram: 512.00 MBName: Radeon X1950 Series SecondaryAdapter RAM: Not AvailableHope this helps.

Hi Dirk, Just a thought on masses of RAM and seeing you mentioned a 1GB GPU. Also got one recently... :-) My conclusion, more than ever, is, VGA RAM ideally scales to the amounts of system RAM. With 2GB, 256-320MB is a good ratio. With 512-768MB you better have 3-4GB RAM. With 1GB VGA RAM... more. So, 1GB GPUs maybe somewhat automatically becomes a 64-bit task..? My reply to this question is affirmative. :-) Particularly with Vista. In the few spare moments of free flight, 8GB and the 1GB GPU delivered the best experience ever. Vista64 RTM with all the fixes, 1.8GB free... Pretty surprising. Of course a couple of other factors come into play, but just to mention the principle... :-) Kind regards Jaap