How to eliminate stutter on the M17x R1 - Completely

Ok - this is how I eliminated DPC latency.

Spec:

M17x R1. Core 2 Duo P9600. Twin Nvidea 280's in SLI. Twin HDD Raid 0.

1. How to eliminate the DPC Latency stutter - completely (in my case anyway) - Win 7 Home Premium 64 bit.

FOLLOW THIS ORDER...

- install Windows 7 64 bit from the DVD - do NOT use the recovery partition as this will cause real problems installing the DOX nVidea drivers below.
- open device manager & then batteries & disable the Microsoft ACPI-Compliant Control Method Battery.
- update windows - select all relevent updates.
- Go to Regedit (This is for “CPU Parking” Issue in Windows 7)
Find this key:- 0cc5b647-c1df-4637-891a-dec35c318583
Within this key, there is a value called: ValueMax
This value represents the % number of cores the system will park - the default 100% ie: all Cores are potentially park-able
Change the value from 64 to 0 so the ValueMin and ValueMax are both zero
You will have to find the key a few times and repeat the process for each time it is found - the number of instances will depend on the number of power profiles in your system
Do a full shutdown and power-off and cold-re-start
Go to the Control Panel and change the Power Power Plan to High Performance
- enable readyboost should you use it.
- configure lan network & homegroup & printer - again, if relevent.
- Chipset driver - do NOT install the network (ethernet) card driver (untick it) & the Nvidia storage driver.
- On-Screen Display Manager Application (OSD 2.17)
- NVIDIA discrete graphics driver - use the DOX Nvidea 195.62 driver from Laptopvideo2go & do not enable powermizer - my twin NV280's in SLI run at 47 degrees with the DOX driver & powermizer not installed FYI.

N.B. The above step is the reason you did not use the recovery partition - for some wierd reason, you can install unregistered drivers with my Home Premium installation when Windows is installed from the DVD - i.e. no driver signing enforcement. As I am sure you are aware, there are work arounds for Driver signing with Windows 7 HP but I found them rather a 'bodge' and so was plesantly surprised when the Win 7 OEM DVD did not seem to have Driver Signing Enabled.

- to install physx, install the dox driver, install the version 8 physx then install the version 9 physx over it
- Wireless network adapter driver - skip - not necessary
- Audio driver
- Bluetooth driver
- Touchpad driver
- Media card reader driver
- Remote control / Infrared driver - skip - not necessary
- Webcam driver - try the microsoft default one first..........it works fine.
- Command Center application
- Mouse
- Microsoft Office
- Windows update again for the 2 service packs for Office
- Direct X
- Adobe Stuff (reader, shockwave, flash)
- Java
- Run CCleaner for files & registry.
- Third party Software & Games.

N.B. I CHECKED THE DPC LATENCY AFTER EVERY STEP ABOVE - SMOOTH GREENS & NO SPIKES. IF YOU WANT YOUR BATTERY CONTROLLED THEN RE-ENABLE THE MICROSOFT ACPI-COMPLIANT CONTROL METHOD BATTERY - NOTE THAT THIS WILL GIVE YOU THE FAMILIAR SPIKES INTO THE YELLOW ZONE EVERY 15 SECONDS THOUGH. YOUR CHOICE.

I also have a solution for the 'Error HRESULT E_FAIL has been returned from a call to a COM component' error in AlienFX which enables you to still make profiles & attach them to applications. This involves a little typing though and it's getting late so i'll post it another day.

Cheers

Spacedman

 

Thing is, even if this does work, (which I doubt will work for everyone) we shouldn't need to go through all this trouble to get a properly working computer, every time I see these tutorials I get mad because this is just stupid that we even have to go through this crap.

 

There is completely no way to completely eliminate stutter completely

But everyone with terrible stutter should give it a shot.

 

All of the above was done many times by many forum members with 280s (including myself) and unless you disable powermizer and always stay in high performance mode (with constantly annoying fans), you still gonna get the spikes when opening multiple tabs and browsing/scrolling many different flash-loaded sites. It not the fix, it's a patch that works to some extend.

 

For me Save Power mode works like a charm. Never ever ever ever got any stutter in whatsoever scenario.

 

Its old news, sourced form this very forum.

 

its a way to make the laptop usable but not acceptable as the final solution.

 

Thanks to spacedman for posting his thoughts and his outcome with his system. Since this info is posted on the Dell blog (or at least a portion of it) and we have others who have tried this, we can continue the discussion in the main DPC Latency thread.

http://forum.notebookreview.com/showthread.php?t=434691

Thanks.