From http://blogs.msdn.com/tomarcher/archive/2006/06/02/615199.aspx Quote... # re: ReadyBoost Q&A Tuesday, September 12, 2006 4:42 AM by Sefi In some cases even a slower USB device could help. For example an older notebook with 1G ram and a slow HDD (4200RPM). It these cases you can enable readyboost with a slow device. 1. Let Vista test is, and check the Do not Retest this device checkbox. 2. Unplug the device 3. Go to regedit HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\EMDMgmt 4.find the key related to you device (the device vendor and name is in the key) 5. Change the follwing values: Device Status 0x02 ReadSpeedKBs 0x1000 WriteSpeedKBs 0x1000 6. Plug the device, right click on it to open properties and enable cache.
This information was very helpful for me. I bought a 2GB Imation USB 2.0 Clip Flash drive today, and thought I could use it to speed up the time with Windows Vista running on my Mac in Parallels Desktop. Although the packaging on the USB drive specifically said that the device was ReadyBoost compatible, when I plugged it in, Vista told me that the drive was NOT ReadyBoost-compatible. However, when I tried the fix above, I was able to enable ReadyBoost. Still not sure whether this will speed things up, but it certainly is a start! Jeff