Cad64 Posted January 3, 2009 Posted January 3, 2009 I've tried an NVIDIA GeForce8400GS with 512Mb RAM and 4500 Hz processor, and the same happens, though some items / objects have come good, others are still playing up. That's odd that even with a 512MB card, you're still having problems? You mention rendering, but you're only posting screenshots. What happens when you actually render the project. Does everything display correctly? I imagine the file is probably much too large to post here? Quote
greg23783 Posted January 3, 2009 Author Posted January 3, 2009 That's odd that even with a 512MB card, you're still having problems? You mention rendering, but you're only posting screenshots. What happens when you actually render the project. Does everything display correctly? I imagine the file is probably much too large to post here? You're right, its a fraction to large for here despite deleting irrevelant objects. I''ve just published it to various formats ( .jpeg, .pdf) and the errors remain (if thats what you term rendering) I only need to dump these into a University project, but I have to do finite element and stress strain analysis on the structure (and will be exporting into Pro Engineer )and therefore could do with this display problem solving! I may (for the couse deadline sake) just export to the google sketch-up as that seems to be rendering fine! Quote
ReMark Posted January 3, 2009 Posted January 3, 2009 Cad64: Take a look at the end of page 1. That's where the OP posted a screen shot re: graphics memory. I went back and looked at it again and noticed something very peculiar. It lists dedicated video memory as 64MB and shared memory as 64MB. This leads me to believe that the graphics are being handled by an onboard chip and not a separate graphics card. Do you agree? Quote
Cad64 Posted January 3, 2009 Posted January 3, 2009 Well, as I understand it, dedicated video memory is what's wired directly into the card and system video memory is what is being borrowed from the computers memory. So his 128mb card is only carrying 64mb. It's borrowing the rest from his system. This makes it a slower processing card than if it had the full 128mb dedicated. ReMark, did you check his "Computer Details"? He lists his system as having only 1GB of RAM. This is not good. Autodesk's requirements for 3D work in Autocad is minimum 2GB of RAM. I'm guessing that the combination of a low end graphic card and not enough system RAM is what's causing these display problems. Quote
ReMark Posted January 3, 2009 Posted January 3, 2009 Cad64: I totally agree with you. At the very least he should max out his physical RAM. I would also like to know, for sure, whether or not there is a dedicated graphics card installed. Again, it sounds like it might be an onboard chip. If a dedicated graphics card was added did the OP disable the onboard graphics when the standalone card was added? I've seen cases where the computer user forgot this important step when adding a graphics card to a computer that did not originally have one installed. Quote
greg23783 Posted January 3, 2009 Author Posted January 3, 2009 Cad64: I totally agree with you. At the very least he should max out his physical RAM. I would also like to know, for sure, whether or not there is a dedicated graphics card installed. Again, it sounds like it might be an onboard chip. If a dedicated graphics card was added did the OP disable the onboard graphics when the standalone card was added? I've seen cases where the computer user forgot this important step when adding a graphics card to a computer that did not originally have one installed. I've upgraded the card to an NVIDIA GeForce 8400 with 512 Mb RAM - problem is still there. The card isn't one on the recommended list from AutoDesk.com, but its a massive improvement on the original (which was 64Mb ram on the card and pinched 64 more from the main RAM) Its not a massive drawing either... Do you think its a ssettings issue within AutoCAD, seeing as when I export the same drawing into SketchUp, the render appears fine...? This is so annoying! Cheers Greg Quote
Cad64 Posted January 3, 2009 Posted January 3, 2009 As I stated previously, unless you add at least another 1GB of RAM to your system, you will continue to suffer with these display problems, no matter what graphic card you use. See HERE for the minimum system requirements for Autocad 2008. Quote
ReMark Posted January 4, 2009 Posted January 4, 2009 Add more physical RAM. Memory is like money, you can never have too much. What is the max amount of RAM your computer's motherboard will allow? What are the specs on the RAM you do have in terms of speed? What range (speed) will your motherboard accommodate? Quote
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