Hi guysI got my new i7 system yesterday. Fantastic. The overall feel of the sim in MUCH smoother- even at lower FPS. I have so far applied ******* Altuve's tweaks and am using Nvidia's Inspector with Nick Needham's tweaks. In less densley populated areas, smooth as silk, but at Heathrow, my machine still slows to 14 fps (with airport in full view on approach) without minimal AI and no road traffic. . What bothers me is that it is noticeable. Okay, it's Aerosoft's Heathrow, but this still doesn't sound right to me with this setup. Also, I have noticed scenery tiles flashing white when they load and sometimes just flashing white randomly. Especially happens in fast turns. I have also noticed when approach lights first come into view, they appear as black squares before rendering the light properly.Here is my full spec: I have also harvested my VRap from my previous machine. My FSX is on the dedicated VRap. I have not defragged since loading FSX and so far have Orbx Australia (all) and a number of large airports in Europe loaded. System Specification- Case: Antec 1200 Ultimate Gaming Case- Power Supply: Corsair TX 750W - CPU: Intel Core i7 950 3.06GHz Overclocked to 4.00GHz- Motherboard: Asus P6X58D-E (Socket 1366) PCI-Express DDR3 Motherboard- RAM: Corsair XMS3 6GB (3x2GB) DDR3 PC3-12800C9 (1600MHz) Tri-Channel- Hard Drive: Seagate Barracuda 7200.12 1TB SATA-II 32MB Cache- Graphics Card: Asus Nvidia GeForce GTX 460 DirectCU 1024MB GDDR5 with SLI Option available- Sound: 7.1 Channel Sound (On-Board)- Optical Drive: LG DVD+/-RW SATA DriveWatercooling Specification- Radiator: EK 240 CoolStream XT Radiator- Pump/Reservoir: XSPC Dual Bay Reservoir/pump (750lph)- CPU Block: EK Supreme LT Nickel Plexi CPU block- Fittings: x6 EK 1/2" High Flow Barbs - Nickel- Tubing: x2 Masterkleer 7/16" Tubing - 1m (Total 2 metres)Any advice on this. I was not expecting any problems with this setup.CheersErich

Sorry to ask the obvious, but what are your other settings? water and light bloom especially

Water set one notch below max and no light bloom. These shouldn't be an issue anyway, as they never affected my Q9650 3.0ghz .eric

First thing I'd do is follow Nick's tuning guide, including defragging FSX, to the letter. Then see how it goes from there.Vic

Try setting water to Low 2.x

Water set one notch below max and no light bloom. These shouldn't be an issue anyway, as they never affected my Q9650 3.0ghz .eric

Well does it just happen near Aerosoft scenery or anywhere near more populated areas?

No it happens when you run out of Physical VRAM and the card instead of rendering is stuck cleaning up because of your messy tweaks. Delete FSX.CFG remove Nvidia Inspector. Tone your settings down and you'll be back to 60fps..It's the same thing in windows.. once you run out of ram, swapping to the harddrive causes extreme slow down.This is probably the zillionth time I've said this in a forum... but just remember there are no free lunches... and throwing out half your video memory for AA/AF is just silly, but that's what some people like.

No it happens when you run out of Physical VRAM and the card instead of rendering is stuck cleaning up because of your messy tweaks. Delete FSX.CFG remove Nvidia Inspector. Tone your settings down and you'll be back to 60fps..It's the same thing in windows.. once you run out of ram, swapping to the harddrive causes extreme slow down.This is probably the zillionth time I've said this in a forum... but just remember there are no free lunches... and throwing out half your video memory for AA/AF is just silly, but that's what some people like.

I'll agree about some of the messy tweaks but as per the rest of your post Sorry, but that is the biggest crock.

No it happens when you run out of Physical VRAM and the card instead of rendering is stuck cleaning up because of your messy tweaks. Delete FSX.CFG remove Nvidia Inspector. Tone your settings down and you'll be back to 60fps..It's the same thing in windows.. once you run out of ram, swapping to the harddrive causes extreme slow down.This is probably the zillionth time I've said this in a forum... but just remember there are no free lunches... and throwing out half your video memory for AA/AF is just silly, but that's what some people like.

With all due respect, I'm not not a child, nor am I new to fligthsim. This is my 6th FS system, and although I do not consider myself 'in the know' enough to apply my own tweaks, I am selective when it comes to choosing who I would take advice from. I have only applied tweaks suggested by Nick Needham and ******* Altuve. I think you will agree that their work can be labelled as anything but messy. So I consider myself slapped on the wrist, but that aside, do you know what might cause the flashing white tiles? Is this a GPU memory issue? EDIT: Okay, so I'm starting from scratch. Have uninstalled everything, cleaned the registry, reformatted the FSX drive and am following Nick Needham's reinstall prep and optimisation suggestions.

What he means by messy tweaks is different tweaks conflicting with each other. Eg NickNs conflicting with *******' tweaks. It can happen. Try applying 1 tweak at a time to make sure everything works fine.

Erich - Take it step by step - first - delete the FSX.cf file and let FSX rebuild. Next follow Nick's setup guide TO THE LETTER , meaning do the defrags , etc. ADD NO FURTHER TWEAKS!Then run your system and see how it goes. If you have any problems - reduce the clock and try again - you need to eliminate the clock as a source of your issues. A successful clock is a balance of the cpu/gpu/memory subsystems - just having the CPU at 4ghz does NOT assure a stable clock.Assuming you've gottent his far and the system is stable with no problems, you can try setting BufferPools and TBM - then fly some more. If you feel you need additional tweraks to correct any issues, then apply ******* tweaks selectively and test.If you don 't need a tweak to correct a problem, do not use it. Too many people get in difficulty by slapping every tweak they can find into their system thinking that it will help when it does exactly the opposite.My system for example, has only two adjustments - Bufferpools is set to 90000000 and TBM is 120. All else is untouched. Although I can run at 60fps all day long I prefer to run at 30 and I have no blurries, no stutters.The occasional white flash when you first load the system or when you first pan around is normal as the GPU is loading up the textures. If you get them quite a bit while flying, that is a different issue. Any time you fly into a new "area" and pan around, you might see white flashes.Have fun,Vic

Thanks for your responses guys.Well, i uninstalled FSX, removed the residual bits, reinstalled and follwed NN's set-ups and OO defrag to the letter. Seems stable. Quite happy with the result. Lots more flying to do.CheersEric