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Guru
Posts: 1,522
Registered: ‎05-29-2010
Location: SG
Views: 744
Message 1 of 6

Sound Optimization on Yoga Home AIO - BIOS

Hi all, 

In order to get the best sound quality out of your PC, there would be compromises such as disabling devices, power saving, and security.

 

A. Access BIOS

Step 1A – Follow this guide to access the BIOS if you are using UEFI version of Windows

 

Step 1B – If you are using Non-UEFI Operating Systems, restart your PC, and press F1 during POST (Lenovo Screen)

 

Peter

ThinkPad X40 | ThinkPad W520 | ThinkPad T560 | ThinkCentre E73 SFF | Yoga 11s | Yoga 3 Pro | Yoga 900 | Yoga Home 900 | Yoga Tablet 2 Pro | Miix 2 10" | IdeaPad Y460p | IdeaPad K1 | 3000 Y300 | Vibe K5 Plus

Give kudos to reward people for their assistance | Mark thread solved if the solution works | I am an active volunteer, not an Lenovo employee

=====================================

List of Sound Enhancement Thread

T520 | W520 ; Dolby ; IdeaPad Slate Tablet ; Yoga 3 Pro ; X100e ; Vibe Shot ; Yoga 900 ; P50 ; P40 Yoga | Yoga 14 | Yoga 460 ; T560 | P50s ; Vibe K5 | K5 Plus ; M0620 Speaker Mod ; Windows 10 / Windows Server 2016

Guru
Posts: 1,522
Registered: ‎05-29-2010
Location: SG
Views: 743
Message 2 of 6

Re: Sound Optimization on Yoga Home AIO - BIOS

B. Disable Onboard Audio Controller (Optional, only if you are using USB DAC)

 

Step 1 – In the Main tab, press Right-arrow key to Device tab

 

Step 2 – In the Device tab, press Down-arrow key twice and press Enter at Audio Setup

B1.jpg


Step 3 – In the Audio Setup, press Enter, press Down-arrow key, and press Enter again to disable the Onboard Audio Controller
B2.jpg
Remarks: Less device, lower noise floor when disabled. If you do not have an USB DAC or you need to use the internal speakers / headphone jack at times, leave it enabled.

Peter

ThinkPad X40 | ThinkPad W520 | ThinkPad T560 | ThinkCentre E73 SFF | Yoga 11s | Yoga 3 Pro | Yoga 900 | Yoga Home 900 | Yoga Tablet 2 Pro | Miix 2 10" | IdeaPad Y460p | IdeaPad K1 | 3000 Y300 | Vibe K5 Plus

Give kudos to reward people for their assistance | Mark thread solved if the solution works | I am an active volunteer, not an Lenovo employee

=====================================

List of Sound Enhancement Thread

T520 | W520 ; Dolby ; IdeaPad Slate Tablet ; Yoga 3 Pro ; X100e ; Vibe Shot ; Yoga 900 ; P50 ; P40 Yoga | Yoga 14 | Yoga 460 ; T560 | P50s ; Vibe K5 | K5 Plus ; M0620 Speaker Mod ; Windows 10 / Windows Server 2016

Guru
Posts: 1,522
Registered: ‎05-29-2010
Location: SG
Views: 735
Message 3 of 6

Re: Sound Optimization on Yoga Home AIO - BIOS

C. CPU Setup

 

Step 1A – If you skipped Part B, Disable Onboard Audio Controller, press Right-arrow key to Advanced tab

 

Step 1B – If you have applied Part B, Disable Onboard Audio Controller, press Esc to get back to Device tab, and press Right-arrow key to Advanced tab

 

Step 2 – In the Advanced tab, press Enter at CPU Setup

C1.jpg

 
Step 3 – In the CPU Setup,

Disable:
- EIST Support
- Intel (R) Hyper-Threading Technology (only available on some i5 and i7 CPU)
- Intel (R) Virtualization Technology (VT-d would automatically be disabled)
- C1E Support

Set:
- C State Support to C1 only
C2.jpg
Remarks: By disabling power saving features such as EIST Support, C1E Support, and set C State Support to C1 Only, the CPU would run at constant clock speed and voltage, which makes the sound much more stable. The drawback would be reduced battery life.


Remarks 2: Disabling Intel (R) Hyper-Threading Technology would improve sound dynamics, the drawback would be reduced performance on multithreaded applications. Disabling Intel (R) Virtualization Technology would improve sound dynamics, the drawback would be disabling the support to run Virtual Machines such as VMware, VirtualBox, etc.

 

Peter

ThinkPad X40 | ThinkPad W520 | ThinkPad T560 | ThinkCentre E73 SFF | Yoga 11s | Yoga 3 Pro | Yoga 900 | Yoga Home 900 | Yoga Tablet 2 Pro | Miix 2 10" | IdeaPad Y460p | IdeaPad K1 | 3000 Y300 | Vibe K5 Plus

Give kudos to reward people for their assistance | Mark thread solved if the solution works | I am an active volunteer, not an Lenovo employee

=====================================

List of Sound Enhancement Thread

T520 | W520 ; Dolby ; IdeaPad Slate Tablet ; Yoga 3 Pro ; X100e ; Vibe Shot ; Yoga 900 ; P50 ; P40 Yoga | Yoga 14 | Yoga 460 ; T560 | P50s ; Vibe K5 | K5 Plus ; M0620 Speaker Mod ; Windows 10 / Windows Server 2016

Guru
Posts: 1,522
Registered: ‎05-29-2010
Location: SG
Views: 725
Message 4 of 6

Re: Sound Optimization on Yoga Home AIO - BIOS

D. Power


Step 1 – If you have applied Part C, CPU Setup, press Esc to get back to Device tab, and press Right-arrow key to Power tab


Step 2 – In the Power tab, leave Enhanced Power Saving Mode(ErP) Enabled
D1.jpg
Remarks: When Enhanced Power Saving Mode is enabled, other wake up functions are disabled and AMT Management function cannot be used, saves more power during power off, and improve sound imaging.

Peter

ThinkPad X40 | ThinkPad W520 | ThinkPad T560 | ThinkCentre E73 SFF | Yoga 11s | Yoga 3 Pro | Yoga 900 | Yoga Home 900 | Yoga Tablet 2 Pro | Miix 2 10" | IdeaPad Y460p | IdeaPad K1 | 3000 Y300 | Vibe K5 Plus

Give kudos to reward people for their assistance | Mark thread solved if the solution works | I am an active volunteer, not an Lenovo employee

=====================================

List of Sound Enhancement Thread

T520 | W520 ; Dolby ; IdeaPad Slate Tablet ; Yoga 3 Pro ; X100e ; Vibe Shot ; Yoga 900 ; P50 ; P40 Yoga | Yoga 14 | Yoga 460 ; T560 | P50s ; Vibe K5 | K5 Plus ; M0620 Speaker Mod ; Windows 10 / Windows Server 2016

Guru
Posts: 1,522
Registered: ‎05-29-2010
Location: SG
Views: 700
Message 5 of 6

Re: Sound Optimization on Yoga Home AIO - BIOS

E. Secure Boot

 

Step 1 – In the Power tab, press Right-arrow key to Security tab

 

Step 2 – In the Security tab, press Down-arrow key twice and press Enter at Secure Boot

E1.jpg 

Step 3 – In the Secure Boot, disable Secure Boot
E2.jpg
Remarks: Disabling Secure Boot would improve sound dynamics; the drawback would be no boot security. Look at this link for more information.

Peter

ThinkPad X40 | ThinkPad W520 | ThinkPad T560 | ThinkCentre E73 SFF | Yoga 11s | Yoga 3 Pro | Yoga 900 | Yoga Home 900 | Yoga Tablet 2 Pro | Miix 2 10" | IdeaPad Y460p | IdeaPad K1 | 3000 Y300 | Vibe K5 Plus

Give kudos to reward people for their assistance | Mark thread solved if the solution works | I am an active volunteer, not an Lenovo employee

=====================================

List of Sound Enhancement Thread

T520 | W520 ; Dolby ; IdeaPad Slate Tablet ; Yoga 3 Pro ; X100e ; Vibe Shot ; Yoga 900 ; P50 ; P40 Yoga | Yoga 14 | Yoga 460 ; T560 | P50s ; Vibe K5 | K5 Plus ; M0620 Speaker Mod ; Windows 10 / Windows Server 2016

Guru
Posts: 1,522
Registered: ‎05-29-2010
Location: SG
Views: 691
Message 6 of 6

Re: Sound Optimization on Yoga Home AIO - BIOS

F. Startup


Step 1 – If you have applied Part E, Secure Boot, press Esc to get back to Security tab, and press Right-arrow key to Startup tab

 

Step 2 – In the Startup tab, press Enter at Primary Boot Sequence

F1.jpg


Step 3 – Exclude any unused device from the boot, and set SATA 1 as priority. (Your PC should show only 1 Windows Boot Manager. I have multiple OS installed, therefore I have 3 Windows Boot Manager)

F2.jpg

 

Step 4 – Press Esc to get back to the Startup tab

 

Step 5 – In the Startup tab, press Down-arrow key once, and disable CSM
F3.jpg
Remarks: Disable any unnecessary device in Primary Boot Sequence and disable CSM improves sound imaging. Enable back device and CSM, if you are required to boot through external device or install non-UEFI Operating Systems.

 

Peter

ThinkPad X40 | ThinkPad W520 | ThinkPad T560 | ThinkCentre E73 SFF | Yoga 11s | Yoga 3 Pro | Yoga 900 | Yoga Home 900 | Yoga Tablet 2 Pro | Miix 2 10" | IdeaPad Y460p | IdeaPad K1 | 3000 Y300 | Vibe K5 Plus

Give kudos to reward people for their assistance | Mark thread solved if the solution works | I am an active volunteer, not an Lenovo employee

=====================================

List of Sound Enhancement Thread

T520 | W520 ; Dolby ; IdeaPad Slate Tablet ; Yoga 3 Pro ; X100e ; Vibe Shot ; Yoga 900 ; P50 ; P40 Yoga | Yoga 14 | Yoga 460 ; T560 | P50s ; Vibe K5 | K5 Plus ; M0620 Speaker Mod ; Windows 10 / Windows Server 2016

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