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		IMB-Q870-i2-R10 (B271) AMI APTIO BIOS
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Mainboard	: IMB-Q870-i2-R10 (B271)
Chipset		: Q87 PCH(Lynx Point) + F81866D + Clarkville I217LM(PHY) + I211(LAN) + ALC662
AMI Veb Tool    : V5.72
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WDT:	Int 15h				(F81866D)
	ax = 6F02h			
	bl = value.
	bl = 0	(Stop counter)

DIO:	Int 15h				(F81866D)
	Input	ax = 6F08h
		al : bit 0-3	
	output	ax = 6F09h
		bl : bit 0-3		
=============================================================================
CPU Microcode : 24
	
	
=============================================================================
Note:
1. SYS_FAN2 DET pin(FANIN) not connect to SIO or EC, so can't detect speed.
2. Modify Audio to ALC888S.   

=============================================================================
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Version		: B271AR38	(Base on B271AR37)	(EC:B271ER38)
Date		: 2026/01/12
CheckSum	: 1779h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Bill Wu
Update BIOS     : DOS
Update ME/TXE   : EFI
ME / TXE change : No

Action		: Fix the issue of the temperature not displaying ℃ in the H/W monitor.

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Version		: B271AR37	(Base on B271AR36)	(EC:B271ER38)
Date		: 2024/05/07
CheckSum	: 3226h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Bill Wu
Update BIOS     : DOS
Update ME/TXE   : EFI
ME / TXE change : No

Action		: 1. Fix In Linux OS, Insert Headphone Audio Front-Panel LINE2 can be not detected.
                  2. Modify SDI pin device to 0x00.

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Version		: B271AR36	(Base on B271AR35)	(EC:B271ER38)
Date		: 2024/04/10
CheckSum	: 4642h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Bill Wu
Update BIOS     : DOS
Update ME/TXE   : EFI
ME / TXE change : No

Action		: Modify Audio verb-table for ALC888S.

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Version		: B271AR35	(Base on B271AR34)	(EC:B271ER38)
Date		: 2020/05/21
CheckSum	: 44B8h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Elvis
Update BIOS     : DOS
Update ME/TXE   : EFI
ME / TXE change : No

Action		: Modify BIOS to set "Daylight Saving" as disable as default.

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Version		: B271AR34	(Base on B271AR33)	(EC:B271ER38)
Date		: 2018/06/22
CheckSum	: E3D1h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Dora Yu
Action		:
1. Update CPU Microcode "17" to "24" for solve Intel Side Channel Analysis Method issue side effect.
2. Fixed DQV issue.
    (1) Fix Admin and User password are cleared after clear CMOS.
    (2) Modify <ESC> String to <F2> for enter BIOS setup menu.
    (3) Follow BIOS Setup Menu Specification, hide some options in USB configuration.

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Version		: B271AR33	(Base on B271AR32)	(EC:B271ER38)
Date		: 2017/09/22
CheckSum	: 4851h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Dora Yu
Action		:
1. Update ME Firmware due to Intel iAMT Vulnerability bug.
2. Fix BPF version check error while using MEBX 9.1.

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Version		: B271AR32	(Base on B271AR31)	(EC:B271ER38)
Date		: 2014/10/20
CheckSum	: 9CB3h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		:
1. Add IPMI module.
2. Update USB module.
3. Fix fan value setting about 50, fan will be run full speed when 
   smart fan setting manual mode.

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Version		: B271AR31	(Base on B271AR30)	(EC:B271ER34)
Date		: 2014/08/11
CheckSum	: CB56h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		: 
1. Fix when wake from LAN(i210) boot to DOS mode and push power button to 
   power off, the system will auto resume. 
2. Fix system will hang up 0xb2 when install RAID OS and use PS2 KB/MS.
3. Fix when system date setting 12/31/2099 23:59:57 and time keep going,
   then system will hang up.
4. Fix when the system date is setting February,April,June,September,November 
   of month that will show error.
5. Modify setting range 1~100 of fan start PWM and range 1~8 of fan slope PWM in auto mode.
6. Fix "Device Settings" string will display abnormal in COM1~6 when "Device Mode" setting 
   ECP Mode / ECP and EPP 1.9 Mode / ECP and EPP 1.7 Mode in Parallel Port. 

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Version		: B271AR30	(Base on B271AR15)	(EC:B271ER30)
Date		: 2014/05/29
CheckSum	: 0735h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		: 
1. Code base change from 1AQQW031 to 1AQQW035.
2. Haswell Refresh CPU support.

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Version		: B271AR15	(Base on B271AR14)	(EC:B271ER30)
Date		: 2014/02/11
CheckSum	: 7BC0h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		: 
1. Improve PS/2 KB enter setup menu sometimes will hang.
2. Change from EC read voltage(+5VSB) instead of from SuperIO read.
3. Fix iSMM Plus DIO function fail.

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Version		: B271AR14	(Base on B271AR13)	(EC:B271ER30)
Date		: 2014/01/15
CheckSum	: 9EA8h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		: 
1. Improve A4TECH PS/2 KB compatibility. 


Known issue     :
1. Sometimes the keyboard can not be used when entering the BIOS setup menu.

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Version		: B271AR13	(Base on B271AR12)	(EC:B271ER30)
Date		: 2014/01/14
CheckSum	: 70CAh
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		: 
1. Fix run QTPRO/CheckIt will hang or test fail. 
2. Fix PME function fail in dos soft off mode.
3. Add iSMM Plus function.


Known issue     :
1. Sometimes the keyboard can not be used when entering the BIOS setup menu.

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Version		: B271AR12	(Base on B271AR11)	(EC:B271ER29)
Date		: 2013/12/28
CheckSum	: 6212h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.2.pdf
BIOS owner      : Allen Lee
Action		: 
1. Fix when entering or leaving the "PC Health Stats" page, the system will be delayed 
   by 1 to 2 seconds to execute.
2. Fix i210 Wake on Lan function fail in dos soft off mode.
3. Fix Wake on Ring function fail in dos soft off mode.
4. Fix COM4 setting "IO=3E8,IRQ=10,11" have an exclamation point in Device Manager.
5. Fix Auto recovery function fail(system can not restart).
6. Fix Clear CMOS Setup function fail(Legacy USB Support and Quiet Boot items will not be
   restored to the default value).	
7. Follow BIOS Setup Menu Specification modify below items:
   a.PCH-IO Configuration PCIe Speed default is "Auto".
   b.PCH-IO Configuration Detect Non-Compliance Device default is "Disabled".
   c.NB PCIe Configuration PEG0  V Gen X default is "Auto".
   d.NB PCIe Configuration Enable PEG default is "Auto".
   e.NB PCIe Configuration Detect Non-Compliance Device default is "Disabled".
8. Add detect ipmi module and show string in setup menu.
9. Erase VBAT item in iWDD H/W Monitor.


Known issue     :
1. iSMM Plus function not ready. 
2. Sometimes the keyboard can not be used when entering the BIOS setup menu.

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Version		: B271AR11	(Base on Crb_1AQQW031)	(EC:B271ER25)
Date		: 2013/12/04
CheckSum	: E600h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.1.pdf
BIOS owner      : Allen Lee
Action		: 
1. BIOS first releasing (1AQQW031 code base)


Known issue     :
1. iSMM function not ready. 

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Version		: B271AR10	(EC:B271ER12)
Date		: 2013/06/23
CheckSum	: F566h
Sign-on Message	: N/A
BIOS Spec. Ver.	: B271 BIOS Specification v1.0.pdf
BIOS owner      : Allen Lee
Action		: 
1. BIOS first releasing


Known issue     :
1. LAN(I217/I211) wake function not ready 
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