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Stamina/Speed switch not working on VGN-SZ484N

My stamina/speed switch stopped working recently. The green light indicator is on stamina mode,while the switch is set on the speed mode. I tried adjusting options in the Vaio Power Managment tool, but it did not switch to speed mode. I've been stuck with the stamina mode for a while, and i can't play some video games because stamina mode uses intel graphics, whilst the speed mode uses nvidia Geforce 7400 Go which is better. Would appreciate your help.

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  • feret Nov 15, 2008

    I have exactly the same problem with my VAIO VGN-SZ460N.

  • Anonymous Apr 11, 2009

    Same thing on VGN-SZ430n, expect it's just the backlight that fails when I switch to speed mode.

  • aoxamoaxa May 04, 2009

    same issue on a vaio sz453N. stuck in stamina mode and switching back and forth has no effect, restart or not...
    frustrating to say the least...

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It depends on the game. And how detailed the game is. like basket ball vrs. mario you know. differen't graphics differen't speeds. Some time you can adjust the speed on the game which will in turn force the speed of the graphics card.

Posted on Dec 31, 2008

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Stamina/Speed Switch In Windows 7


Page 104 of the manual says you must reboot between switch changes to install the change.
The manual is here
https://docs.sony.com/release/VGNSZ400_UG_US_F.pdf

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My sony vaio vgn sz440 is not changing from stamina to speed


Hello try to download the driver from here:

http://esupport.sony.com/US/p/model-home.pl?mdl=VGNSZ440&template_id=1&region_id=1&tab=download#/downloadTab

Here is only drivers for windows vista.
But sometimes it work on windows 7
Aslong it`s a 32 bit system.
Here is no driver for the 64 bit system.

The new nvidia graphic driver is here:

http://www.nvidia.com/object/geforce_notebook_winvista_win7_179.48_beta.html

Good luck

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I have another problem with my laptop, I think its about the video card, I had to slide my switch to Stamina, so it would stop making lines on the screen, what do you think could be the problem?


Hi:
Your laptop has 2 seperate video processors. The performance processor and the onboard processor. The stamina video runs from the onboard processor, and the performance video is a seperate card. If you only get lines when running off the performance mode, then most likely that video processor card has issues. It can be replaced, but it isn't cheap!
You can hunt around on ebay for one, but don't faint from sticker shock!

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Hi mathur_punit,

Enter the following passwords without the quotes at the 'Main' menu while keeping your mouse cursor over the 'My Cricket' option. Deactivate the passwords by inputting the same password at the 'Pause' screen.

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Bowler always has Special Deliveries:
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Empire won't give 'No Ball':
Enter 'HAIER'.

Bowlers have Magic Move:
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Run Fast:
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What OS are you running? Have you tried to upgrade drivers of you machine? Also you should try any firmware upgrade before you use the warranty.

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If you download "driver max" this will find all system hardware, check all driver versions, download the the latest version, or if you want to pick a known good one you can. It looks like, as you have so many OS on your pc. that there may be some conflicts there. But driver max should sort this. Oh and it's free so no worries there.

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Hi ankemumaphan,
Enter the following passwords without the quotes at the 'Main' menu while keeping your mouse cursor over the 'My Cricket' option. Deactivate the passwords by inputting the same password at the 'Pause' screen.

Unlock Fly Mode:
Enter 'MALIK'.

Bowlers always have Full Stamina:
Enter 'ASIF'.

Batsmen always have Full Stamina:
Enter 'INZAMAM'.

Bowler always has Special Deliveries:
Enter 'GUL'.

Empire won't give 'No Ball':
Enter 'HAIER'.

Bowlers have Magic Move:
Enter 'SAQLAIN'.

Bowlers have Super Speed:
Enter 'AKHTER'.

Run Fast:
Enter 'RAZZAQ'.

Happy Gaming :)

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Stamina/speed switch


This IS very likely a hardware problem. I'm not very sure about your model but I know that many SZ users w/ G84xx/G86xx NVIDIA card out there are having similar problem -- could be due to NVIDIA chip failure.

http://www.theinquirer.net/gb/inquirer/news/2008/07/09/nvidia-g84-g86-bad

Sony had just acknowledged this problem (failed G84/G86 NVIDIA chips) recently but unfortunately SZ series models were not included in the list.

http://www.theinquirer.net/inquirer/news/1528907/sony-admits-failing-nvidia-chips-months-late

In case you're using SZ model and are having G84/G86 nvidia card, just give sony service center a call, at least to let them take your issue into their record.

Oct 01, 2008 | Sony VAIO VGN-SZ480 Notebook

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