Shouldn't be much of an issue, namely because this couldn't be much more than a very low end file server or domain controller anyway... I would want more than 2GB for any app server, especially if using SQL. Additional bandwidth is about all you would get from DDR1 to DDR2/3. I'm using DDR1 in my home server /PC and it runs like a champ, and it's only a tad slower gaming than my DDR2 main desktop with more processing power (supposedly). Certain apps, especially those with robust databases, would benefit from having more bandwidth and would likely require more RAM to run well anyway.