X220 modified bios (1.46) doesn't let me change the option from the bios

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im1hpu0 · #1 Post by **im1hpu0** » Fri Aug 10, 2018 9:16 am

https://www.reddit.com/r/thinkpad/comme ... hange_the/

Unfortunately I don't have time to write everything again, but you can find all the infos here.

Sorry about this and thanks in advance for the help

#2 Post by **RealBlackStuff** » Fri Aug 10, 2018 9:51 am

I assume you're talking about this BIOS: http://x220.mcdonnelltech.com/
Did you read the WARNING in its PART 1 OF 4: ADJUST BIOS SETTINGS?
I'd be very careful with so many unusual options...

im1hpu0 · #3 Post by **im1hpu0** » Fri Aug 10, 2018 10:10 am

Mmm i read it several times, and I never saw it lmao. I shall try once I return home tomorrow/sunday. But thank you very much.

im1hpu0 · #4 Post by **im1hpu0** » Sat Aug 11, 2018 11:27 am

Ok, I've checked everything that was write in that particular point. But it didn't resolve anything. Can it be the cmos battery the problem? Or maybe the propretary blocking every change that someone does in the advanced tab?

P.S: it also redirects me to "How to install hackintosh", but I don't want to install it.

#5 Post by **RealBlackStuff** » Sat Aug 11, 2018 12:25 pm

Check first that you have no passwords in the BIOS, then check the CMOS-battery.
If it is less than 2.8V it should be replaced.

Fusion · #6 Post by **Fusion** » Wed Aug 15, 2018 4:56 pm

If much of the BIOS options are greyed out or inaccessible than the BIOS is password locked.
Are you getting a password prompt? Hitting enter makes the prompt go away but then changes in the BIOS are blocked.

ThinkGreen · #7 Post by **ThinkGreen** » Mon Aug 27, 2018 2:57 am

I'm undecided about which is the "better" bios version to install on my Lenovo x220, to have both no vulnerability and good performance.
Currently I have again the old 1.38 version.

I'm particularty interested to know if this issue could be resolved with a bios update.

#8 Post by **RealBlackStuff** » Mon Aug 27, 2018 6:36 am

No.
Get a 90W charger, problem solved without having to make any changes elsewhere.

ThinkGreen · #9 Post by **ThinkGreen** » Mon Aug 27, 2018 7:03 am

Apart that, is it better to upgrade from 1.38 to 1.46 or not ?

#10 Post by **RealBlackStuff** » Mon Aug 27, 2018 8:28 am

McDonnell's 1.46 BIOS gives you many more options than Lenovo's.
I have it on my own X220 and use it without any problems, running W7 and Linux Mint.
My machines will never see W10, so don't ask.

Only you can decide if that BIOS is better for your machine.
If you have a password on your BIOS, get rid of that first, before you do any further experiments.

ThinkGreen · #11 Post by **ThinkGreen** » Mon Aug 27, 2018 8:39 am

I've no password on my bios and I still use Windows 7.

With that bios ram frequency is not limited to 1333 MHz, right ?

X220 modified bios (1.46) doesn't let me change the option from the bios

X220 modified bios (1.46) doesn't let me change the option from the bios

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