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ATI Graphics Card Question


Nyll Bergbahn
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Thanks for that explanation Ansariel. I would assume ATI Catalyst is capable of detecting one of its own units correctly so maybe it is a 512MB card. It would explain why my computer is running so hot when in Second Life. I'll try and find a utility that checks graphic card memory.

Nyll

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Those memory available display was IMHO always buggy on AGP cards because of the "great" feature idea of AGP cards to use additional main memory for textures. Because of that, you should find in you computer's BIOS a setting "AGP aperture size" somewhere. And if I'm not completely wrong, this was by default either set to 256 MB or 128 MB.

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It is very possible the manufacturer have supplied you a 512MB card by mistake. Once I took some memory (RAM), but it come with a lot more RAM than I bought. However, the only way to know that is by using a tool like CPU-Z.

SL does not recognize all kind hardware in your machine. It seems that it detects only those hardware listed on its code. LL has to improve that someway.

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Is what you mean by buggy that the AGP Aperture memory (system RAM) shows up as Graphics Card memory? I reset the AGP Aperture BIOS to 256MB from 128MB a while back but whether I have it at 32MB, 64MB, 128MB or 256MB it doesn't affect the 512MB shown in ATI Catalyst or Sys Info after restarts. I've reset it to 128MB as that should be high enough.

CPU-Z says I have a 512MB card and graphics AGP 8x supported. SiSoftware Sandra says I have a 256MB card and current transfer rate of 8x too. I'm not really any the wiser!

Anyway, thanks Ansariel and Steve for your assistance. I'm not going to worry too much about it as Second LIfe is running reasonably well considering my system is nearly 6 years old (except for the graphics card).

Nyll

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Actually I don't know exactly if and if yes in what cases the shown available memory is affected by the aperture size. I only remember that if you use different tools you get a varying results with AGP cards. The only reliable source is if the graphics card posts a message during boot.

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