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phoenixstudio,novice to pro.
My system has been dog doo slow since I did a reinstall a couple weeks back. Process Explorer was showing some outrageous hardware interrupt rates, on occasion as high as 50% and regularly at 20%.
I’d let it roll for a couple weeks simply because it was low on my frustration list and I was trying to roll through other things. It finally pissed me off enough tonight that I spent some time nailing it down. Turns out ATA/IDE controllers will often revert back to PIO mode instead of Ultra-DMA. (MS KB article on the problem here.)
Check the problem by examining the controller’s Primary and Secondary IDE settings:
Device Manager -> IDE ATA/ATAPI controllers -> Primary or Secondary IDE Channel -> Properties -> Advanced Settings. Look at the Current Transfer Mode field.
If it’s “PIO” then it’s a FUBAR PITA and you’ll need to uninstall the driver, reboot and let XP do its magic reinstall.