This post can be additional to previous (Upgrading to Windows 8.1) but is targeting on particular case VAIO model SVE14A2V1RW. Though, I guess not only VAIO models suffer from this problem.
Symptoms: After rolling up 8.1 update to Windows 8 VAIO notebooks, cooling system running at full speed making loud noise. Also it drops power saving efficiency.
In some forums people suspect malfunction and took their notebooks to service centers. In some services, specialists suggest to restore back Windows 8 because they have no idea how to deal with this case. In fact, problem could be easily fixed.
Solution: Problem is in Catalyst driver that manage Intel integrated graphics and Radeon discrete graphics card. To repair this, after you finish updating to Windows 8.1, you have to visit VAIO support page.
1. You need to install some drivers from
Preinstalled Drivers and UtilitiesWindows 8 section.
Download and install:
Intel® Management Engine Interface driver ,
Intel Chipset Driver ,
AMD Radeon HD 7570M - HD 7670 Graphics and Intel® HD Graphics 4000 driver,
Intel® 7 Series Chipset Family SATA AHCI Controller.
2. Then open Windows 8.1 section on the same page.
And now install updated drivers:
SATA Driver (Intel) - 126.96.36.1996
Graphics Driver (AMD) - 188.8.131.52
Wireless LAN Driver (Intel) - 184.108.40.206
Sony Firmware Extension Parser - 1.0.0
VAIO Control Center - 6.0.19/6.0.20/6.1.12/6.2.11/6.3.6 + .09270
other drivers and apps from this 8.1 list you can download if you want.
Also I suggest to install all updates comes from VAIO care update application.
3. After reboot you will enjoy silent work as it was before 8.1 update! )