I've recently upgraded my card to a ATI Radeon 9800 Pro 128MB, but am still having frame rate problems with the 737NG.I've turned some of the sliders up to medium-high type settings, but at Heathrow for example, the average is only between 14 and 20fps. This is with NO AI traffic.I have a 2.5GHz Pentium 4 and 512MB RAM, and to be honest, with this set up was expecting to have alot of the sliders at very high levels.I've tried deleting the fs9.cfg file several times, but without success. Even with ALL the sliders at low, I still only get frame rates in the 35 fps region.Are there any other tips I can use to get the frame rates higher?Thanks for any help.-Phil Brown

I assume you were running an nVidia card before the Radeon?If so, the best way to fix the performance is to format your O/S and reinstall it..

Negative. Only ever had Radeons. Started with a 7500, then a 9000, now 9800 Pro.

Phil,I think your framerate problem is definitely not a graphic card issue.As far as I can see the "FS-bottleneck" in your System is RAM.In your case I would add another 512 MB of RAM that should give you the performance you expected.

I bought a high end system too for FS( and I have come to the conclusion that 50% of good performance is system ralated and the other 50% is tweaks. Keep tweaking. Read evry post about tweaks and keepe tweaking. You will just come across a tweak accidentally and you will get good fps. I have a 2.6 P4 w/ HT, 1 GIG OCZ DDR Ram, Asus P4C800e mobo and I get about 30 FPS with ALL slider maxed on 737 PMDG. Keep in mind the 2 major FPS killers are real weather and AI traffic.

Thanks alot for the responses. It seems an increase in RAM could solve my problems, so I'll give that a whirl.Appreciate the help.-Phil

Phil:Another thing that I found helpful is to disable the Hyperthreading on your computer, if you have a system with HT technology. Most games are not optimized for HT technology. On my system it nearly doubled the framerates. I would try this before spending money on hardware. Hope it works.v/rTodd HontzP4 2.6Ghz 512MB DDRAM,Nvidia Ti4200 128MB AGP8X,WinXP

Phil,besides the RAM I too think you should spend more time on tweaking, it sure gives you good framerates at the end. So have a look through the AVSim MSFS forum to find some great tweaks. Yes it needs time but it seems to be necessary...Regards,Markus

Todd,Could you please elaborate a little more on how to disable HT technology. I would like to see if this would give my any framerate boost.ThanksDaniel

You can disable Hyperthreading in your system's BIOS.The Pentium IV 3.06 Ghz processor is the *SLOWEST* Hyperthreaded-enabled processor to my knowledge. I do doubt your 2.5 Ghz is HT-enabled. For what it's worth, I have a P4 3.06HT processor and it made absolutely no difference if I had HT turned on or HT turned off. As discussed in the MSFS Forums here at AVSIM, the primary culprit for HT-related performance problems was un-updated 3rd party software (Specifically the FlightMax series).

Daniel:This is done during startup. See reply number 8. To my knowledge most games are not optimized for HT technology. Hope it helps outTodd Hontz

Sir:With all due respect, I know my own system. It is HT enabled, I know because I disabled it. This worked for me and I offered it up only as a suggestion.v/rTodd Hontz

OOOPS I thought you were refering to me. My apologies.Todd Hontz

(No problem!)-Greg