As a 600m and windows xp pro user, I found out that anything related to my chipset, including my usb 2.0 ports, one of which is being used for a midi controller, are sharing the same IRQs as my video card. This is distressing since I have to use both at the same time and this usually leads to CPU spikes. I have everything installed from the latest drivers for my hardware, SP1 with all windows updates, SpeedswitchXP 1.3, and all my startup programs disabled, as instructed by a Dell technician. I have also tweaked my OS using the suggestions in www.musicxp.net and have tried disabling ACPI. All of these options don't work and none of them lead to allowing me to work as efficiently as I have with my desktop system. As fast as the 600m's Pentium-M 1.3 GHz cpu may be, the IRQ sharing has really screwed me over. Has anyone gotten around this?
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12/5/03 at 11:14pm