If it is present you may still want to upgrade because there have been several significant improvements in the Data2Quick driver. Data2Quick is one of the safest pieces of software you can put in your system. DPM is a device driver that loads during boot up and runs seamlessly in the background. All it does is increase Microsoft s read ahead amount from 64k to up to 1Mb. I ve seen a lot of hard drive tests.
Some tests measure seek time.
Others measure the data transfer rates outside the system. Still others measure the time it takes to do scripted tasks. For the average every day user the best tests are the ones that run a script of common programs and tasks, time them, and print out a score based on the amount of time it took to complete the tasks. Winbench 99 and SpeedRate are both downloadable from their website and you may access them from here. Both tests measure Windows 95 and 98 s ability to take data from the hard drive and put it to use.