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Windows 7: DPC Latency

21 Jan 2010   #21
whest

XP, Vista, W7 64bit Home Premium
 
 

If you do a custom install you can delete the current partition during installation(this will remove all the data) and recreate it in the empty space, and select a quick format - this takes about 1 minute - once a drive has been formatted you only need to do a quick format to reset the paramaters.


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21 Jan 2010   #22
marcus00

Windows 7 Home Premium - 64 Bit
 
 

Cool. Thanks again Whest. Looking forward to downloading all those updates
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21 Jan 2010   #23
whest

XP, Vista, W7 64bit Home Premium
 
 

Install MSE first up so your protected - http://www.microsoft.com/security_es...s/default.aspx
Download service pack 3 from here would make it quicker - Microsoft Download Center
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13 Jan 2011   #24
ruggb

windows 7
 
 
Dpc latency fixed - fixed i say

OK - this may be earth shattering news!!!!!!!!!!!!

I bought a NEW (remanufactured) HP Elitebook laptop. One of the first things I did was to run the DPC Latency program - BAD NEWS.
With a little troubleshooting I determined that the issue was the nVidia driver-which a lot of people have pointed to.

I addressed it to HP and eventually was connected to REAL engineering.
They verified my findings and got nVidia involved.
After a relatively short period of time nVidia acknowledged the issue and began work on it. Today I rcvd an advanced copy of the new driver - AND IT WORKS!!!!!!!!!

DPC before install was 16 MS max - that is MILLISECONDS.
It has been running for 30 minutes now with the new driver and max DPC = 721USEC.

Unfortunately, I don't know when it will appear on the nVidia site but my copy is 261.28. watch for it.......................previous bad copy was 260.99

Rejoice...................
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