Hi Fellow Simmers,Yesterday I got my new machine built and I have to say things are not looking good. Here are my System Specs:CoolerMaster Mystique Stainless Steel CaseAsus M4A785 T-M MotherboardAMD Phenom 2 X6 1090T Black Edition 3.2Ghz (Overclocked to 3.4Ghz)2x2GB Corsair RAM DDR3 @ 1333MhzInno3d GTX 460 1GB 256BitSpire Jewel 550WSeagate SATA2 Hard DiskSamsung SyncMaster P2370 (1920x1080)Windows 7 Ultimate EditionFSX SP2 + REX2, GEX, Other AddonsEverything was running well in 3D Mark but system crashed when overclocked CPU was at 3.6Ghz. Reduced to 3.4Ghz and running stable with result in 3DMark06 at 17,252 points.Games like Far Cry 2 at ultra graphic settings run like a dream. Only thing that makes my machine fall to it's knees is FSX which I am starting to think is a very poorly made program.Aerosoft EDDF with PMDG 747-400 at max settings with REX2 and GEX is at 10 FPS with no AI Aicraft! I don't think that's normal. It should run flawless from the videos I have seen on YouTube. Take it out of Aerosoft EDDF and I get 30 FPS at max settings with clouds from REX or without it does not matter.Test at medium settings Aerosoft EDDM produces 12 FPS (No AI Aircraft Traffic). Test at minimum settings at that airport produces 22-24 FPS.Something is clearly wrong here. But I don't know what. Now there is a lot of speculation that FSX will not use more than 4 cores. That's not true. You can force cores to work in BIOS. All my 6 cores are being used. 2 of them kick in when the scenery loads. But even if FSX uses 4 of them at 3.4Ghz the sim should pull in at LEAST 18 FPS.I HAVE NOT TOUCHED MY FSX.CFG! No tweaks made. Maybe that's the problem. Yes I have the latest drivers from nVidea both for motherboard and GPU.If anyone can offer some help that would be appreciated. It's very dissapointing because I expected so much more out of my new configuration...Regards

Its been stated that there is no real gain from a 6 core compared to 4 core in FSX. You would have been better off buying a 920/930 and overclocking to 4ghz. You can try to update all your drivers, especially your bios, and make sure there are no memory compatibility problems slowing things down. I'm not really experienced with AMD, but if you install an Intel chip, your should also install the chipset driver. I'm guessing theres something simular with AMD?Good luck, and I hope you can get some better framerates!

Its been stated that there is no real gain from a 6 core compared to 4 core in FSX. You would have been better off buying a 920/930 and overclocking to 4ghz. You can try to update all your drivers, especially your bios, and make sure there are no memory compatibility problems slowing things down. I'm not really experienced with AMD, but if you install an Intel chip, your should also install the chipset driver. I'm guessing theres something simular with AMD?Good luck, and I hope you can get some better framerates!

Hi, bios is updated although no cpu temps are available for some reason. As I said even if 4 cores are used I expected a bit more FPS. It does not make sense to me that all applications run at lightning speed except for FSX. Compared to my previous system the 3D Mark Scores and other tests I have done it's 3 times faster. But somehow FSX performance has not gone up by much. I get 60+ FPS in FarCry2, but can't get 20 in FSX. When flying my CPU is at 20-30%. When loading scenery it's at 98%. Idk if that's normal. Also the FSX loading time compared to my previous machine is staggering. It loads up real fast but frames are not much better. Thanks for your input.

I see two problems with the system; 1 you're gonna need more than a 550Watts PSU to OC, 2 the Motherboard has an integrated ATI 4200 and with NV graphics being used there's gonna be conflicts, and that Board is not suited for OCing, with AMD it's really better just to go top of the line with the MOBO (the highest prices reach is $300 USD.) Top of the line AMD Board.Also get a good after market CPU cooler.

I see two problems with the system; 1 you're gonna need more than a 550Watts PSU to OC, 2 the Motherboard has an integrated ATI 4200 and with NV graphics being used there's gonna be conflicts, and that Board is not suited for OCing, with AMD it's really better just to go top of the line with the MOBO (the highest prices reach is $300 USD.) Top of the line AMD Board.Also get a good after market CPU cooler.

Yeah I was warned to get a high end Motherboard but I bought a mid level one. Does the performance of FSX on this system seem normal to you?

Does the performance of FSX on this system seem normal to you?

If you're doing every slider to the right then yes. Otherwise you should be seeing at least the low 20s in FPS in fairly dense areas.Also I have a Toshiba L305D-S5934 laptop, so I'm stuck at default clocks (2GHz) and bridging a BSOD from heat after 15 minutes in the air (The CPU temps have hit 98C with the thermal throttling active.)I know this guide gets practically spammed but Nick N's FSX set up guide is extremely useful.Oh this is post 100... I just noticed my post count now...

Err, here is something interesting. I don't know what to make of it.Running FSX I started switching off cores one by one to see what difference it makes. Absolutely none. 8-12 FPS all 6 cores running and 8-12 FPS with only 1 core running. :Shocked: What the hell is going on? Is FSX using only 1 core and just spreading the load over 6 or using the others only for scenery loading? It says CPU running at 80% when all cores are turned on.

[JOBSCHEDULER]AffinityMask=62

Put that in the fsx.cfg

FSX runs mainly on Core 0 and uses the other cores as necessary to load scenery, etc. If you run add-ons like ASE or moving map programs, get them off of core 0 - that will free up a bit.There IS a differece using 2,4,or 6 cores. Doesn't really affect the FPS much BUT when properly tuned, the flights are smoother.Search for Nick's Guides - use the OS setup guide FIRST and the the FSX setup guide.Setting up the OS is critical to good performance with FSX. Other than the hardware items mentioned in the previous posts - mainly the PSU - you should get decent perfromance with that system AFTER you properly tune the OS and FSX.Vic

Thanks will try that and post back tomorrow

Adding that line to FSX.cfg did not help.I am attaching a pic of the CPU values and FSX in the background with max settings. The other cores spike up too occasionally but mostly it's core 0 and 1 that are at highest percent. What I don't get is that the CPU is working at 20-30% when scenery is not loading.So why the low frames? There is plenty of processing power that is not used. Is the GPU not doing what it's supposed to? My question is why is the FPS so low when there the processor clearly can do more work?Here is the shot.

FSX runs mainly on Core 0 and uses the other cores as necessary to load scenery, etc. If you run add-ons like ASE or moving map programs, get them off of core 0 - that will free up a bit.There IS a differece using 2,4,or 6 cores. Doesn't really affect the FPS much BUT when properly tuned, the flights are smoother.Search for Nick's Guides - use the OS setup guide FIRST and the the FSX setup guide.Setting up the OS is critical to good performance with FSX. Other than the hardware items mentioned in the previous posts - mainly the PSU - you should get decent perfromance with that system AFTER you properly tune the OS and FSX.Vic

Thank you Vic! I will remove FSX and all addons, and follow that guide from scratch.

I see you're using AOD, in that case I would recommend you make an AMD Smart Profile for FSX and set the app priority to High, I've seen about a 10 FPS increase by doing that.

I see you're using AOD, in that case I would recommend you make an AMD Smart Profile for FSX and set the app priority to High, I've seen about a 10 FPS increase by doing that.

Ok I will try it, thank you. I also found another useful guide if anyone is reading this forum that has similar problems as me: http://www.flightsimworld.com/forums/index.php?showtopic=191071I will post back in a couple of days with the results I get.Regards

Well if it's just loading scenery and autogen what could that possible take up 20% on the other cores... FSX needs one massively fast core for graphics, everything else is minor in comparison.