Question about Sony VAIO VGN-SZ440 Notebook
My Sz440 is not changing the mode from stamina to speed it just stay on stamina all the time. Don't know what to do.
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Posted on Jan 02, 2017
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.
Posted on Aug 31, 2009
Testimonial: "Thanks for the info. The STAMINA/SPEED switch is now working and it doesn't restart when I close the lid. I just used the recovery disc's drivers."
SOURCE: 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.
Sony had just acknowledged this problem (failed G84/G86 NVIDIA chips) recently but unfortunately SZ series models were not included in the list.
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.
Posted on Aug 19, 2009
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