05-20-2018 01:41 AM - edited 05-20-2018 01:54 AM
I have a Thinkpad W530 (2438-4KU) running Windows 7 Pro, with a 3rd-generation (Sandy Bridge?) Intel processor (Intel Core i7-3630QM).
Even though BIOS Update 2.70 had been listed in the Critical tab in Lenovo Update -- presumably because it addressed the Spectre and/or Meltdown vulnerabilities -- I purposely held off on installing it. Doubly so after reading comments on this board about pc’s running at hot and widely-varying temperatures after installation.
Well, just now I ran Lenovo Update again, and was expecting to still see a BIOS update listed in the Critical tab since I hadn’t applied it. But I was surprised to see that the only BIOS update listed is now in the Recommended (not Critical) tab -- Update 2.71 -- and the only vulnerability it states as addressed by the update relates to Intel Active Management. (There are no updates of any kind listed under Critical now.)
So is 2.71 cumulative, i.e., does it have the Meltdown/Spectre patches even though not listed in the specs? And if so, shouldn’t it still be listed as Critcal in my run of Lenovo Update since I never applied 2.70?
In addition, I’d appreciate any feedback from W530 users with Sandy Bridge as to how BIOS 2.71 (or for that matter, 2.70) is working for you -- particularly if you have Windows 7. Any heat issues? And what kind of practical performance hit did it cause (comparing to 2.69 or earlier)?
Solved! Go to Solution.
05-26-2018 03:19 AM
Yes, BIOS updates are cumulative, so the 2.71 BIOS (UEFI) update contains the patch from 2.70.
04-18-2019 01:05 PM
04-18-2019 10:50 PM
If you are having CMOS issues, it may just be time to replace the CMOS/RTC backup battery. They do not last forever, and need to be replaced every few years.