How to Configure Interrupt Request (IRQ) Priorities in Windows Vista and 7. Most components directly attached to your motherboard—including PCI slots, IDE controllers, serial ports, the keyboard port, and even your motherboard’s CMOS—have individual interrupt requests (IRQs) assigned to them. An interrupt request line, or IRQ, is a numbered hardware line over which a device can interrupt the normal flow of data to the processor, allowing the device to function. Windows Vista and 7 lets you prioritize one or more IRQs (which translate to one or more hardware devices), potentially improving the performance of those devices. Start by opening the System Information utility (msinfo. System Summary\Hardware Resources\IRQs to view the IRQs in use on your system, and the devices using them. Take note of IRQ1. Numeric Data processor) that we will use in this example: 2. Next, open the Registry Editor and navigate to. HKEY. Create a new DWORD value in this key, and call it IRQ#Priority, where# is the IRQ of the device you wish to prioritize (e. IRQ1. 3Priority for. IRQ 1. 3, which is your numeric processor). Double- click the new value, and enter a number for its priority. Enter 1for top priority, 2 for second, and so on. Make sure not to enter the same priority number for two entries, and keep it simple by experimenting with only one or two values at first. Close the Registry Editor and reboot your computer when you’re done. Some users have gotten good results prioritizing IRQ 8 (for the system. CMOS) and the IRQ corresponding to the video card but the feedback is unconfirmed: http: //www. Do you think it is a placebo tweak? Post your comments! Ben Carigtan shows you how it’s done! How to Fix Outlook 2007 Cannot Send Email Problem with Windows Vista & Linksys Router. June 8, 2007 by Ian Lee 151 Comments. Most components directly attached to your motherboard—including PCI slots, IDE controllers, serial ports, the keyboard port, and even your motherboard’s CM. Take a Tour Download Validation Interfaces Support and FAQs Help Files News and Tips Vanity Node Numbers Conference Servers Routers and Firewalls Current Logins.
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