Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
[Request] ASUS Z97-PRO (Wi-Fi AC) - TPM ...
Last Post: kamwo
Today 01:16 PM
» Replies: 0
» Views: 11
[REQUEST] Lenovo Thinkpad Edge E535 (HHE...
Last Post: Quentin
Today 04:07 AM
» Replies: 137
» Views: 76696
Asus Strix G512LV Bios Unlock
Last Post: laret
Yesterday 05:48 AM
» Replies: 58
» Views: 37876
Bios setting unlock for Thunderobot 911x
Last Post: pcnahradnediely
03-30-2026 06:35 PM
» Replies: 0
» Views: 159
[SOLVED] Clevo N750BU BIOS unlock
Last Post: GigantTech
03-29-2026 03:17 PM
» Replies: 2
» Views: 285
[REQUEST] HP Desktop Pro G2 BIOS Unlock
Last Post: hlfjery
03-28-2026 08:51 PM
» Replies: 0
» Views: 228
[REQUEST] Sony Vaio VPCEH & VPCEJ series...
Last Post: Tarik72
03-28-2026 10:10 AM
» Replies: 246
» Views: 199143
[REQUEST] Lenovo ThinkPad Edge E320 (8NE...
Last Post: Dudu2002
03-27-2026 02:29 PM
» Replies: 75
» Views: 54181
BIOS dump — Razer Blade Pro 17 FHD RZ09-...
Last Post: Kavvika
03-26-2026 03:51 PM
» Replies: 0
» Views: 277
[REQUEST] Lenovo G710 BIOS Whitelist Rem...
Last Post: inside11
03-26-2026 08:50 AM
» Replies: 504
» Views: 295852
[REQUEST] Lenovo T520 (8AETxxWW) Whiteli...
Last Post: nicklu
03-26-2026 05:19 AM
» Replies: 148
» Views: 138897
Z390 Asus Maximus XI Extreme weird issue
Last Post: derril
03-25-2026 04:00 PM
» Replies: 0
» Views: 326
(I'm PAYING) Clevo X7200 Bios remove GPU...
Last Post: SuperMG
03-25-2026 02:46 PM
» Replies: 2
» Views: 648
[Request] Dell Inspiron 17r SE 7720 Unlo...
Last Post: naquaada
03-25-2026 02:42 PM
» Replies: 94
» Views: 125792
[REQUEST] Lenovo Y50-70 (9ECNxxWW) BIOS ...
Last Post: saberz
03-24-2026 06:50 PM
» Replies: 1971
» Views: 1235119
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: yusuftpala
03-24-2026 04:32 PM
» Replies: 763
» Views: 423518
[REQUEST] Lenovo G70-70 BIOS Whitelist R...
Last Post: Harmando
03-24-2026 02:53 PM
» Replies: 133
» Views: 106031
[REQUEST] Lenovo G480 (5ECNxxWW) Whiteli...
Last Post: innominad
03-24-2026 03:34 AM
» Replies: 104
» Views: 79464
Some questions about H61MK
Last Post: raffaele32
03-23-2026 05:03 PM
» Replies: 0
» Views: 308
9600M GT works on external display but n...
Last Post: Mick1819
03-23-2026 02:04 PM
» Replies: 0
» Views: 287

[REQUEST] Bios Mod for Lenovo AiO B40-30
#1
Hi all,

I had to remove CPU fan from my Lenovo B40-30 AiO (desktop) because of the unbearable noise. Confused
It works very well without it since a few months (I have removed the back cover and checked CPU max temperature which is OK)...but every time I start my PC, I have to press F2 key to confirm that I want to boot even if my CPU fan is not present.

As I often need to start my PC remotely using WOL, it can't be done anymore and stop at boot without going to Windows (unless someone press F2 key for me at home).

AFAIK, my official bios does not allow to continue anymway without fan and there is no "ignore fan error" option.

So, here's my bios backup, I've tried to find this fan or thermal control option with AMIBCP 4.53 but I don't really know what to do or which parameter I should change.

http://s000.tinyupload.com/index.php?fil...8818017058

Thanks in advance,
Regards,
find
quote
#2
Don't you ever think replace a new fan??
When this message show it mean fan was broken ,so it bring noise.
You could try insert other fan to test.

find
quote
#3
(01-10-2020, 06:05 AM)genius239 Wrote: Don't you ever think replace a new fan??
When this message show it mean fan was broken ,so it bring noise.
You could try insert other fan to test.

Hi @genius239,

Thanks a lot for your reply but I don't really want to replace with a new fan.
First, because my PC works flawlessly without it (core i3-4160T) since a few months, summer season included.
But also because I would like to avoid unnecessary fan noise, even when it was new my (cheap) AiO PC makes too much noise for me.
I'm aware that it's not recommended to work without CPU fan but passive cooling using only heat sink without back cover works great, I'm only doing Internet and office things.
Regards
find
quote
#4
Hi~~
I made a modded ,test it and reply me what changes in bios screen and if it jump the error message.
http://katfile.com/l7ffe72ho4bh/LENOVO-O...1.rom.html

find
quote
#5
(01-10-2020, 08:23 AM)genius239 Wrote: Hi~~
I made a modded ,test it and reply me what changes in bios screen and if it jump the error message.
http://katfile.com/l7ffe72ho4bh/LENOVO-O...1.rom.html

Hi genius239,

You rock !  Smile Smile
After flashing, new section advanced appears in bios and PC boot without pressing F2.
Thanks a lot for your help.
Best regards,
find
quote
#6
(01-11-2020, 06:43 AM)apcloic Wrote:
(01-10-2020, 08:23 AM)genius239 Wrote: Hi~~
I made a modded ,test it and reply me what changes in bios screen and if it jump the error message.
http://katfile.com/l7ffe72ho4bh/LENOVO-O...1.rom.html

Hi genius239,

You rock !  Smile Smile
After flashing, new section advanced appears in bios and PC boot without pressing F2.
Thanks a lot for your help.
Best regards,


Good news~~
Could you capture some unlocked photos to me??
Do you still see fan fail message when it boot??

find
quote
#7
(01-11-2020, 07:12 AM)genius239 Wrote:
(01-11-2020, 06:43 AM)apcloic Wrote:
(01-10-2020, 08:23 AM)genius239 Wrote: Hi~~
I made a modded ,test it and reply me what changes in bios screen and if it jump the error message.
http://katfile.com/l7ffe72ho4bh/LENOVO-O...1.rom.html

Hi genius239,

You rock !  Smile Smile
After flashing, new section advanced appears in bios and PC boot without pressing F2.
Thanks a lot for your help.
Best regards,


Good news~~
Could you capture some unlocked photos to me??
Do you still see fan fail message when it boot??

Yes, for sure !
Do you want me to post you a bunch of unlocked photos of the new advanced section ?
There is no more fan fail message at boot.
find
quote
#8
(01-11-2020, 09:15 AM)apcloic Wrote:
(01-11-2020, 07:12 AM)genius239 Wrote:
(01-11-2020, 06:43 AM)apcloic Wrote:
(01-10-2020, 08:23 AM)genius239 Wrote: Hi~~
I made a modded ,test it and reply me what changes in bios screen and if it jump the error message.
http://katfile.com/l7ffe72ho4bh/LENOVO-O...1.rom.html

Hi genius239,

You rock !  Smile Smile
After flashing, new section advanced appears in bios and PC boot without pressing F2.
Thanks a lot for your help.
Best regards,


Good news~~
Could you capture some unlocked photos to me??
Do you still see fan fail message when it boot??

Yes, for sure !
Do you want me to post you a bunch of unlocked photos of the new advanced section ?
There is no more fan fail message at boot.

Yes ,i need some unlocked screenshot from bios interface.
Because i rarely  to modify lenovo's bios.

find
quote
#9
Hi genius239,

Here's a link to some unlocked screenshot from bios interface.
The new sections are Devices and Advanced (right menu).
Let me know if you want more pictures of a specific sub-menu :p
http://katfile.com/5neiuulzhjpq/BIOS-MOD...0.zip.html
Regards,
find
quote
#10
i HAVE A LENOVO ALL IN ONE B40 -30 ALL IN ONE. I BOUGHT IT FROM A HEARING IMPAIRED PERSON. THE ADMIN IS LOCKED AND THE OPERATING SYSTEM IS ZVRS - THE SELLER DOES NOT HAVE BIOS ADMIN PASSORD.  i AM TRYING TO LOAD WINDOWS 8 OR 10 BUT CAN NOT. PLEAE HELP...


Attached Files Thumbnail(s)
           
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)