I had given up on my old Dell 8100/1G /400M FSB and was about to junk it but eboostr with the boost file on a usb 2.0 flash allows me to run XP-pro SP3 for basic mail and as a home server(Apache) for my network. For best speed use a separate usb controller on the PCI bus not the built in controllers. But watch when using a IDE drive with boost that also has a the page file as the system can start thrashing Especially when the page file is split between IDE drives on the 2 controllers. I did not notice much difference on my 2.6G core2 quad/4G but the system memory/bus and SATA drives are much faster. Testing eboostr ver 4.0 b536