Simviation Forums

I installed FSX a week ago had poor framerates. Bought new GPU, 1 more gig ram and 19" lcd monitor. Problem: after flying anywhere from 3min to an hour or so one of four things will happen. Blue screen of death, total lock up of sim, Sorry but sim has encountered problem and needs to close or instruction@ 0x20c6a07e referenced memory could not be read click to term program. This problem is also occuring in FS9. I can spend hours online no problems only happens in FS9 or FSX.  Abit VT7 mb, 4ea Corsair 512 ddr 400 mhz ram, Intel p4 @ 3.2ghz, GeForce 6800 GSOC AGP 256 mb latest driver from Nvidia, XP home, 80 gig hd, 600 w pwr supply, DX9c from FX dvd.  Ran defrag, AVG virus, Spyware all clear. I am totally confused any help much appreciated. Doug

I'm not the best person to ask, but your system specs look pretty impressive... it might be your PSU. Make sure the amp-rating of the 12V rail you are using is sufficient for your new GPU- a logical place to start. This is more likely to be a problem if the card has its own 12V socket in addition to drawing power off the PCI slot ( I think).
FS9 and FSX beat the living crap out of video cards at anything but the lowest settings, so the errors may be due to it just giving up because it needs more juice to do all that rendering.

Hello i know that you cant change the hardware in FSX because it will lock up, its one of Microsoft defenses for FSX, but if it happends also to fs9 that could be something else.try to run them with internet connection off.Do you have both of them installed? Try to remove FSX and see if fs9 runs.
Hope that helped, i know its not very conclusif but try.
Cheers
keep us posted about it

Its your RAM. You probibly have conflicting or bad sticks.

Also what defrag did you use. Windows or O&O. If not O&O, get it and run it.

I'm convinced its ithor a RAM or bad driver problem if it only occures during load times.

Cheers
Cameron

Hey Cameron! the sticks is it possible even after theFs started wouldnt be logical to hapend wen you load it?

Hey Cameron! the sticks is it possible even after theFs started wouldnt be logical to hapend wen you load it?

Fozzer, you better get in here

Fozzer, you better get in here  :P

Even I had trouble with that one ~__~

To answer the question, putting stress on all of your sticks like in flying or other gaming, will cause the RAM to malfunction and blue screen.

Please don't tell me your running an odd number of sticks?

Cheers
Cameron

Thanks to all for response:  My PSU is 600 watt, video card has seperate 12v conn. I used an open port on PSU so as not to piggy back on hd or dvd cable. Internet is off when flying. I do have both sims 9 & X installed, might remove X and test 9. I thought about heat as possible but since it can happen in as little as three min after turning on comp or as long as an hour not sure. I do have even # ram 4ea Corsair 512 ddr 400 mhz. I had two with FS9 and added two more when installed
FSX. Defrag w/Windows haven't heard of O & O will check out! FS9 ran perfect before FSX install, Changes made with FSX were replace GEforce 5600 with GEforce 6800 (both agp).
Two 512 mb ram sticks, replaced 17" crt w/ 19" lcd monitor.
Doug

Did you uninstall and reinstall newer drivers when you changed GPU's?

Cheers
Cameron

Hi Cameron, Yes I did uninstall the old drivers and installed the latest from Nvidia for the 6800. Thanks for the help. Doug

if its both sims


uninstall both the FS

defrag your drive

uninstall & reinstall your video driver

reinstall FS


that should work

john

Hi Cameron, Yes I did uninstall the old drivers and installed the latest from Nvidia for the 6800. Thanks for the help. Doug

With AGP you must also uninstall the motherboard AGP driver when you uninstall the video drivers... then re-install the motherboard AGP driver and last, install the video drivers.

If I read that right you have 4 sticks of 512 memory... 4 sticks of memory may not be playing nice together. If after you confirm drivers I would remove 2 sticks leaving 2 matched sticks in the system and retest.. if your still seeing the problem, swap them with the 2nd pair.

If the problem is still there then I would start looking at BIOS settings. AGP aperture being too low can sometime cause strange things. 128 is the minimum, I would not set it higher than 256 though.

If I read that right you have 4 sticks of 512 memory... 4 sticks of memory may not be playing nice together. If after you confirm drivers I would remove 2 sticks leaving 2 matched sticks in the system and retest.. if your still seeing the problem, swap them with the 2nd pair.

This seems to be a classic problem people are having here. Thinking more RAM is "better", mixing sticks, and having bad performance.

This seems to be a classic problem people are having here. Thinking more RAM is "better", mixing sticks, and having bad performance.

This is a good point, particularly with modern mainboards that support dual channel memory configuration.

___________________

I thought about heat as possible but since it can happen in as little as three min after turning on comp or as long as an hour not sure.

Well, if you don't try it, you'll never know will you?

Appreciate all the great suggestions. Yesterday I flew 3 hours before failure this is a record for me. Before I bought FSX my FS9 flew perfectly with two 512 sticks @ 25fps, sliders max, no weather. After FSX install my hd was blinking almost constantly causing jerking of a/c in flight (only in FSX). This is when I added two more 512's, same size and manufacturer. This solved that problem but reading your posts may have initiated new problem. This morning I am going to remove two sticks and leave the cover off and set an external fan for additional cooling. If this solves the problem (4 ram not playing well together) what would be a solution as money spent on this hobby has wife more communicative than usual.
Doug