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Boost XP speed by changing real time clock priority.
7 April 2007

Open Registry by going to START-RUN and typing REGEDIT. Navigate to [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl]. If you see an entry by the name IRQ8Priority set it to a value "IRQ8Priority"=dword:00000001 if you don't then click on the right pane and add a new dword entry with given name.. IRQ8 is typically reserved for real time clock in most of the computers. Make sure thats the case (by going to device manager -> system devices -> system COMS/realtime clock -> properties -> resources tab , if it is set to another number try adding an entry with that number N as IRQNPriority) . Generally realtime clock priority boosting helps most but you are free to try others as well.

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posted by s я ϊ я α м . at 4:09 pm | Permalink


1 Comments:


At Wed Nov 26, 07:08:00 am 2008, Anonymous Anonymous

NONSENSE - DOES NOTHING
Informed computer users have known this to be a myth for a long time. Just a few of the problems with this "tweak"
1. Nowhere in any Microsoft documentation will you find any reference to it.

2. Using a registry monitor reveals that this entry is never referenced.

3. Why IRQ8? This IRQ is virtually irrelevant to performance. Many systems do not use it at all.

This bit of nonsense has been floating the internet for a long time. Nobody knows it's origin. It is probably a distortion of a valid setting on some long forgotten system.

Larry Miller
Microsoft MCSA