Turbocache in XP

First, install your video drivers. You've probably already done this, but if you want to make sure that you have something recent, do the following:
-Right-click your desktop and click Properties
-Go to the Settings tab
-Click the advanced button
-Go to the Adapter tab (note the Memory Size under Adapter Information)
-Click on Properties button
-Go to the Driver tab
-Check the Driver Date and Driver Version to see if it's at least November 2006 and/or 93.71
-Close the dialogs.
-If your version isn't up-to-date, then download and install the latest nVidia Driver.

Install Rivatuner
-Just download it from here: http://downloads.guru3d.com/download.php?det=163
-Run the installer



Hey, that was easy, right? Now comes the important part:
-Disable Turbocache
-Open Rivatuner
-Go to the Power Users tab
-Click on the Open Matched Database button. It's one of the little ones on the bottom.
-Find and expand the nVidia...System entry in the list
-Find RMDisableRenderToSysMem and set the value to 1
-Close Rivatuner
-Reboot the computer

Double-check to see that your card is "normal" and not using system memory anymore. Repeat the "Verify your driver" steps to view the properties of your video card and see if the memory listed is only what's onboard (up to step 4).

And that should be it! I noticed a performance gain on my system. Probably because it wasn't paging to the system memory. Probably just one less thing the CPU had to keep track of.

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Windows uses 20% of your bandwidth Here's how to Get it back

A nice little tweak for XP. Microsoft reserve 20% of your available bandwidth for their own purposes (suspect for updates and interrogating your machine etc..)

Here's how to get it back:

Click Start-->Run-->type "gpedit.msc" without the "

This opens the  group policy  editor. Then go to:


Local Computer Policy-->Computer Configuration-->Administrative Templates-->Network-->QOS Packet Scheduler-->Limit Reservable Bandwidth


Double click on Limit Reservable bandwidth. It will say it is not configured, but the truth is under the 'Explain' tab :

"By default, the Packet Scheduler limits the system to 20 percent of the bandwidth of a connection, but you can use this setting to override the default."

So the trick is to ENABLE reservable bandwidth, then set it to ZERO.

This will allow the system to reserve nothing, rather than the default 20%.

I have tested on XP Pro, and 2000

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