I've posted before, but now I've found the trouble maker.
My USB is causing High CPU usage.
SysInternals Process explorer Shows Hardware Interrupts sitting at 30-50%. I've tried everything. Once I disable all 4 USBs 82801EB ( 24D2/4/7/E) the CPU spike is gone. The computer comes alive again. It shuts off / boots very fast. Once I enable the (4)USB Controls, the spikes go back up. Even if I unplug devices from, it still hogs up the CPU.
I've tried updating Chipset drivers to various versions, New, Old, you name it. Nothing helps.
The event viewer does not show any errors. The device manager does not show any conflicts (Works properly).
The hardware is all fine, I've had it for many years. My HD Died, so I had to reinstall a fresh OS. Right after an install of XPSP3 (bundled into CD), it starts off slow from the first boot. It's an OEM cd. I have a retail CD, but I do not have a valid CD KEY. I own 2 OEM cd-keys.
Driver downloaded from Intel Filename is INF_AllOS_126.96.36.1999_PV_Intel.exe
The driver version in the Device Manager for USB all 4 - 5.0.1006.0 1/15/2003.
Maybe windows reverts back to the old drivers, I don't know.
Im running WinXP Pro, SP3 latest updates.
P4 3.2 HT / D865Perl Mobo
What should be my next step? Is there a way to maybe manually switch drivers without windows using backups from the sys32?
Thank you in advance.
Edit: Minor details
Edited by NickT., 20 January 2011 - 01:42 PM.