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PeterHaze
Paper Tape
Posts: 3
Registered: ‎07-13-2014
Location: Romania
Views: 496,784
Message 1 of 38

Lenovo G50 BIOS in this system is not fully ACPI compliant

Hello everybody !

 

I kinda have a problem as the title states.My neighbour has a Lenovo G50 she bought and came with windows 8.1 x64 ( which she doesn't like at all and in my opinion win7 is far more superior ). The thing is I wanted to install her the Windows 7 Ultimate but everytime the " loading files " ends right after it boots from the dvd I get a bsod with the message " The BIOS in this system is not fully ACPI compliant Stop 0x000000A5 "
I tried all kind of different settings through the bios, changed from UEFI boot to Legacy / disabled secure boot / fast boot / I set the ACHI to compatible / but the end result is almost the same ( two times with different settings my screen froze with a red line over the top after loading the files )

 

My question is what is the problem and is there a fix for it? (of course it is,but I don't know it Smiley Very Happy )

 

 Thanks !

 

 

Moderator comment: Remark(s) contravening the Community Rules removed - implied profanity. Keep it clean.

er_siddhartha
What's DOS?
Posts: 1
Registered: ‎07-19-2014
Location: INDIA
Views: 495,897
Message 2 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

 

I just bought Lenovo G50-30 with Pentium Quad Core

 

I am also facing ACPI compliant Blue Screen midway loading Win7

 

After reading all related stuff I tried these:

 

Pressing F7  --- No Joy ,

 

Theres No Way Editing Bios

 

Similar blue screen observed while loading Win XP

 

 

ANYBODY  PLZ HELP....

PeterHaze
Paper Tape
Posts: 3
Registered: ‎07-13-2014
Location: Romania
Views: 495,876
Message 3 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

You can edit/enter bios via Fn+F2 buttons
shincs
What's DOS?
Posts: 2
Registered: ‎07-20-2014
Location: Hungary
Views: 495,864
Message 4 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

Set Bios (enter F2 or Fn+F2)

- os: win7

- usb mode: usb2

- boot: legacy

 

and install win7 from bootable pen (select F12 or Fn+F12).

 

 

 

 

PeterHaze
Paper Tape
Posts: 3
Registered: ‎07-13-2014
Location: Romania
Views: 495,856
Message 5 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

Any good tutorial to make a good bootable usb with win7 ?
shincs
What's DOS?
Posts: 2
Registered: ‎07-20-2014
Location: Hungary
Views: 495,836
Message 6 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

DMXOnline
What's DOS?
Posts: 1
Registered: ‎09-19-2014
Views: 491,083
Message 7 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

the fix is restore bios to default

RohitDewal
What's DOS?
Posts: 2
Registered: ‎09-20-2014
Location: India
Views: 490,829
Message 8 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

The solution is this....

 

getting the ACPI Error like this...

 

Link to image

 

Step 1: Shut down your Laptop.

 

Step 2: Find the small NOVO button on Left side of your Laptop near the Power cord Point. Press the button. The System loads Boot Options..

 

Step 3: Click on the BIOs Setup Option. A Blue screen menu appears use arrow keys to navigate to Exit option and select

 

               OS optimized Defaults to Win  7 ( The Default is Windows 8 64 Bit)

 

Step 4: If you are about to Install a Fresh Copy of Windows 7 Then Goto Configuration Tab and Change 

 

              USB Mode to USB 2.0 (Original may be USB 3.0)

 

              In case you are already Running Windows 7 and the Problem was caused by Updating Your BIOS then 

 

              Then rest the Bios by using the option given in the Status Bar.

 

Step 5:  Goto Exit and Select Exit Saving Changes. Select Yes

 

The problem should be gone.. and if It doesnt... Be Patient. Open BIOS Settings again and tweak around... Boot Mode or Boot Priority etc.

 

* Please refre to this Document -

http://download.lenovo.com/consumer/hnt/lenovo_g40_30_g50_30_bsod_solution.pdf

 

Moderator note: large image(s) converted to link(s):  About Posting Pictures In The Forums

thispostonly
What's DOS?
Posts: 1
Registered: ‎10-06-2014
Location: serbia
Views: 487,318
Message 9 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

I managed to install the windows 7 64bit on a lenovo g50 30 by doing this:

 

I didnt flash the bios, didnt udate it. I restored the previous version of bios, in the bios settings. After doing this, there will be new options avalable to chose what os you want to install.

davargas73
What's DOS?
Posts: 2
Registered: ‎10-13-2014
Views: 485,226
Message 10 of 38

Re: Lenovo G50 BIOS in this system is not fully ACPI compliant

here will I have the solution

aqui la solucion

 

formatting windows 7

 

formateo de windows 7 por usb

 

http://youtu.be/y6rLJHZnyDE

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