As I move along with trying to learn how to best use my new Flex 5000 I thought it might be nice to share what I have found in the way of interfacing computers with the 5000 over a Firewire connection. I hope this is useful information for others. In a prior post someone noted that Norton Internet Security caused latency issues with PowerSDR. I have found the same thing. I am currently using a Dell Optiplex GX620 dual processor machine with windows XP. I like to use a web browser while running PowerSDR so PowerSDR has to keep running under these conditions. Using the DPCLAT.EXE utility I have found that PowerSDR will freeze if the deferred procedure calls increase to values over approximately 500us. I am runnning the Flex 5000 driver in Safe Mode 1, 192 KHz, 2048 MB buffer. If I restart PowerSDR everything is fine until the DPC's increase again.
Browsing the web without any Internet security or antivirus packages works well without any PowerSDR freeze ups of any kind. After installing Norton Internet Security 2008 Power SDR will freeze from time to time, usually when browsing websites with a lot of graphics, and DPCLAT shows an increase in DPCs when Norton Internet Security is installed. I find that accessing the Newegg website is great for testing my configurations. If I can browse through the Newegg website (www.newegg.com) I seem to have a good configuration. I have uninstalled Norton Internet Security and am now trying Trend Micro Internet Security 2008, and so far things look good. I'll keep you posted. It might be a nice idea to start a database with Flex 5000 user configurations. I would like to know what other folks are seeing. I hope that I have not bored you. _______________________________________________ FlexRadio Systems Mailing List [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
