I found this line in the system.ini file under [vcache] as I tried to edit it for a higher amount of RAM: ChunkSize=512 What's that?

Just a guess but ... that's the normal size of sectors on a hard drive.

Hi Zbriegnew, The Vcache in System.ini is relative to you RAM size and whether you manage virtual memory yourself. Personally i leave it up to Windows as it makes the entire unused area of the HD available for caching. It will not be of any benefit to alter the chucksize. This should be set to 512. However, if you are managing your own virtual memory, you can set your MinFileCache and MaxFileCache here. These should be set to around a quarter of your total RAM. IE, for 128MB RAM the setting would be ideal at 32768 and that applies for both Min and Max. vito@supanet.com

"ChunkSize" specifies the size of each block of cache memory buffer.

Also look here; http://www.rojakpot.com/Speed_Demonz/Chunksize_Optimization/Chunksize_Optimization_01.htm

Recommended for 128 or less RAM is no max or min VCache size -- let Windows do its thing. Tests have (apparently) shown that for RAM above 128MB, a max and min VCache (both the same) of no more than 70% of RAM may improve PC performance.

I agree with rac about the "let Windows 98 do it's thing". BUT, you do not want to set a MIN on the cache. If you do you are DEDICATING that amount of ram to the cache, whether it is needed or not. If it is not required, windows can not use this ram for any other purpose, and if memory is required, it will resort to swapping. The "70% rule" that is starting to appear is for the MaxFileCache setting. On some larger ram boxes (512 and under), there are reports that windows is slow to release the cache resulting in performance issues. This parameter places an upper limit on what can be used. vito: BTW, vcache has nothing to do with managing virtual memory. It is also not using the "entire unused area of the HD for caching". This is the File Cache and it is in memory (ram).