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3 years (and two weeks) ago we made a bulk buy of 90+ Dell OptiPlex GX-270 systems to replace older desktop machines for our users. Overall we have been satisfied with these systems. But during the last 7 months or so, we have had to replace the motherboards in 17 of these systems. The typical symptom that results in us having to request a replacement MB has been that the video signal from the built in video card would spontaneously go dead in the middle of using the machine. No predictable pattern to when. Power cycling the machine brings the video back 99% of the time. But once it starts to happen on a given machine, it continues and increase in frequency. The first couple of times we suspected driver incompatibility, power supplies, etc. But in the end, replacing the motherboard (transferring over the processor and memory from the existing MB) has been the permanent fix. I am wondering if anyone else purchased some of these GX-270 systems and has experienced the same or similar issue. Feel free to respond to me off list as I am not trying to bash the manufacturer, just figure out if it might be a manufacturer defect. A 20% plus MB replacement rate seems out of the norm in my thinking. These machines are out of warranty as of two weeks ago, and we now have two more systems that are yet again experiencing this problem. Thanks for your time! - Al -- =============================== Al Bray Systems Analyst University Services Michigan State University Phone: 517-355-0357 Ext. 161 Fax: 517-353-2024 email: [log in to unmask]