E6400 Vista x64 Aero help

I did the same thing on my Vista Business 32-bit, and now aero works flawlessly (before, it'd be laggy and render things very slowly). Windows Vista did pop up a warning saying that the driver is unsigned, but it seems to be working just fine for now. It did lower my WEI score from 3.5 to 3.3 though.

 

Hey, it seems nvidia driver auto downclocked your GPU when idle.
(Called PowerMizer)
You can check it by GPU-Z.

And here's my solution:
1. open Regedit
2. Search "PerfLevelSrc" in "HKEY_LOCAL_MACHINE"
3. Change PerfLevelSrc data from "3333" to "3322"
4. Reboot your laptop, and see what happens!

Of course you can save out that reg file for instant switch.

P.s. This only do change when the AC apapter is linked. The PowerMizer still working if you use the battery!!

Hope this helps!

 

Hey guys thanks for the tips. I've installed the latest 64 bit Vista driver from Laptopvideo2go but still have the same issues. Does the 185.20 64 bit version solve these issues with Aero where later versions do not? I hesitated to downgrade to this one since it seemed there were a lot of comments about issues with it.

 

Just as a bookend to this post....I tried installing the specific driver others seemed to have luck with from Laptopvideo2go, but the aero lag was still there. The best way I can describe it is the transitions are jerky and ui responsiveness seems slow. There was a suggestion to disable some of aero's features but that seems ridiculous to have to do on a laptop with these specs, although I understand it might help. I wish I would have just stuck with the integrated graphics at this point.

 

Have you tried killerjack1021's suggestion? I tried his after I still had lag with the new drivers, and his remedy worked perfectly for me. Now aero is as smooth as butter.

But yeah...I think I'm gonna start getting integrated graphics in my next laptops. I don't need that much power, and the extra battery life is really enticing.

 

Problem solved! I was just about to try KillerJack1021's suggestion until I stumbled across the NV GPU tool from GoodBytes here:
http://forum.notebookreview.com/showthread.php?t=368384

It turns out KillerJack1021 was right in my case too, my GPU was getting downclocked even when plugged in. I double checked my vista power settings and it shouldn't have been throttled, but I guess nvidia was doing it anyway. So I made sure powermizer was disabled when plugged in and Aero works great now! Thanks a ton for your help guys!

 

Actually, what KillerJack1021 may have no work entirely. It depends on the drivers version and GPU. They are additional registry items to change. My tool detects what is needed to be done and does it safely.

The Quadro NVS 160M, among other mobile GPU's, has "power-levels" type of thing,.. they are preset performance profile set by the drivers or chip firmware. Disabling PowerMizer as suggested, may have not the highest speed profile loaded, or the slowest. They are additional registry items which needs to be changed to make sure the highest speed (normal speed) profile is being in used instead of the medium or low speed. Just having a reg file that does it, renders, from my testing, BSOD's on some systems. My tool detects your GPU and drivers and performs the correct settings.

 

ah, I didn't know about this tool. Awesome, thanks!