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General Software Discussion / Re: RAMdisk on XP 32bit - brainstorming!
« Last post by 4wd on May 10, 2009, 01:26 PM »Just gave Gavotte a quick test and it looks like it does indeed use the space above 3.5GB, (or 3.25GB in my case).
Quick test:
1) Edit boot.ini to add the /pae switch.
2) Merge the ram4g.reg in the archive - do this first, there's a reason.
3) Run the ramdisk.exe program to install the RamDisk.
If you're using PAE then the name of the drive, (default R:), will be 'RamDisk+PAE'. If you remove the RamDisk and then reinstall it again, then you will lose PAE mode, (the drive name becomes 'RamDisk'), because it wipes out all it's registry entries. So you'll have to merge the ram4g.reg file in before you install it again.
My available RAM before creating a ramdisk was ~2770000 out of 3405228 according to TaskManager, I made a ramdisk of 1GB using PAE and my available RAM dropped by only 256MB to around 2500000 - the other 768MB being the part XP32 can't access.
I copied 1GB of files to it and the amount of available RAM stayed at ~2500000.
I then changed the size of the ramdisk to 768MB using ramdisk.exe and the name of the ramdisk changed to 'RamDisk-PAE' and the system got back 256MB.
I copied ~700MB and the system still had it's original ~2770000 out of 3405228 available, the RamDisk being completely in the PAE area this time.
I think I've found a use for that unseen 768MB
Maybe you should give Gavotte a look, however, be warned that the 64bit version is twice the price of the 32bit version
Quick test:
1) Edit boot.ini to add the /pae switch.
2) Merge the ram4g.reg in the archive - do this first, there's a reason.
3) Run the ramdisk.exe program to install the RamDisk.
If you're using PAE then the name of the drive, (default R:), will be 'RamDisk+PAE'. If you remove the RamDisk and then reinstall it again, then you will lose PAE mode, (the drive name becomes 'RamDisk'), because it wipes out all it's registry entries. So you'll have to merge the ram4g.reg file in before you install it again.
My available RAM before creating a ramdisk was ~2770000 out of 3405228 according to TaskManager, I made a ramdisk of 1GB using PAE and my available RAM dropped by only 256MB to around 2500000 - the other 768MB being the part XP32 can't access.
I copied 1GB of files to it and the amount of available RAM stayed at ~2500000.
I then changed the size of the ramdisk to 768MB using ramdisk.exe and the name of the ramdisk changed to 'RamDisk-PAE' and the system got back 256MB.
I copied ~700MB and the system still had it's original ~2770000 out of 3405228 available, the RamDisk being completely in the PAE area this time.
I think I've found a use for that unseen 768MB

SuperSpeed ramdisk - but I'm on the lookout for an alternative... for whatever lame marketing reason, I'll have to get a new license when I move from XP to Vista/Win7. And the 64bit version is almost twice as expensive as the 32bit >_<-f0dder (May 10, 2009, 07:45 AM)
Maybe you should give Gavotte a look, however, be warned that the 64bit version is twice the price of the 32bit version


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