Release Notes for Phoenix UEFI/BIOS Firmware on EKF SC2-PRESTO
This file describes changes, extensions and bug fixes made in Phoenix UEFI/BIOS for EKF SC2-PRESTO. For any further questions contact EKF at:
Email : support@ekf.de
Internet : www.ekf.com
2021-03-11: UEFI/BIOS release, Build #272 production
- Added Setup option which allows to select the chassis type of SMBIOS Type 3
Setup [F2]: Advanced -> Board Configuration -> Select Chassis Type of SMBIOS Type 3
Available options: 17, default type is ‘Rack Mount (23)’.
- Corrected and extended table content of UEFI Shell utility ‘smbiosview -t 3’
- Updated Haswell CPU microcode to version 40 (0x28)
Current CPU microcode version is shown in Setup [F2]: Advanced -> Silicon Information
- Added ECX-PCIE and SCJ-VEENA in list of EKF detectable boards
- Straightened options for TPM actions
Setup [F2]: Security -> Trusted Platform Module Configuration -> TPM Action
- Changed RTC default date to 2021-01-01 on RTC error
- Added support for customer-specific Setup Defaults
2020-02-12: UEFI/BIOS release, Build #270 production
- Added SPI Flash write-protect feature
Setup [F2]: Security -> SPI Flash Write-Protect
Available options: Disabled (Default), Enabled
- Show detailed USB routing in Setup
Setup [F2]: Advanced -> USB Configuration (Intel)
USB Per-port Disable Control is now Enabled by default.
- Removed unavailable hardware devices from SMBIOS tables
- Added SMBIOS tables for both CompactPCI Serial Fat-Pipe slots
- Show USB routing in SMBIOS table
- Added feature to load Manufacturer Setup Defaults instead of Standard Setup Defaults
When booting in manufacturing mode only a minimized number of devices will be enabled during POST.
- Added SX6-FIREWORKS and SFV-RAY in list of EKF detectable boards
- Fixed a bug when feature ‘Password on Boot’ is set to Enabled
Setup [F2]: Security -> Password on Boot
- Added Secure Boot status message ‘Origin of Keys and Signatures”
Setup [F2]: Security -> Secure Boot Configuration
- Fixed a bug which shows garbage at end of Setup menu “Processor Power Management”
- Deleted unnecessary strings in help screen of Boot Menu
- Feature i210 alternate device ID is now also supported even if lower PCH Root ports are set to disabled
Setup [F2]: Advanced -> Network Configuration -> Select alternate Device ID for i21x on cPCI Serial
- When Setup option for Ethernet Option ROMs is set to Enabled, a new menu item “Misc” is shown in Setup
Setup [F2]: Misc
Menu “Misc” shows configuration data (MAC address, …) of all detected Intel Ethernet controller
- Fixed a bug when trying to disable PCI network controller NC3 or NC4
Setup [F2]: Advanced -> Network Configuration -> Control i210 Ethernet controller NC3/NC4
- Fixed some security related issues
- Added support for SV2-MOVIE Rev 3
- Changed RTC default date to 2020-01-01 on RTC error
2019-09-13: UEFI/BIOS release, Build #268 production
- Implemented Secure Boot feature and added EKF and Microsoft certificates as defaults
Setup [F2]: Security -> Secure Boot Configuration
For further information read fwinfo.txt.
- Added support to enable or disable Ethernet controller NC2/NC3/NC4
Setup [F2]: Advanced -> Network Configuration -> Control i210 Ethernet controller NC2/NC3/NC4
Available options: Disabled, Enabled (Default)
- Added Setup node to control boot option watchdog timer when in Setup
Setup [F2]: Main -> Boot Features -> Skip Timeout for Setup
Available options: Disabled, Enabled (Default)
- Moved control of TPM Support
Setup [F2]: Security -> Trusted Platform Module Configuration
- UEFI Shell: Changed display of utility dmpstore with option -n
- Changed custom specific Setup Defaults
2019-04-15: UEFI/BIOS release, Build #260 production
- Added support for boards with missing, empty or weak battery
Appropriate RTC and CMOS error messages and SMBIOS logs can be suppressed by this Setup node
Setup (F2): Advanced -> Miscellaneous Configuration -> Ignore Battery Error
Available options: Disabled (Default), Enabled
- Fixed missing detection of PCI devices when a missing, empty or weak battery is detected
- Changed RTC default date to 2019-01-01 on RTC error
- UEFI Shell: Added new option for Shell command ekfpci (alias p)
Option -l3 shows PCI buses occupied by PCI bridges
- Added mode “Auto” for ACPI Virtual Battery feature
Setup [F2]: Advanced -> ACPI Configuration -> Virtual Battery
Available options: Disabled, Enabled, Auto (Default)
Mode “Auto” automatically enables the ACPI virtual battery if a certain MXM module is detected on EKF SV2-MOVIE
- Added Setup node to remove “Windows Boot Manager”
Setup [F2]: Main -> Remove Windows Boot Manager
Available options: Disabled (Default), Enabled
If this option is set to Enabled the “Windows Boot Manager” boot option is always removed from Setup menu “Boot”.
- UEFI Shell: Fixed a bug in Shell command “reset”
Option -c now really performs a cold reset
- Updated Haswell CPU microcode to version 37
Current CPU microcode version is shown in Setup [F2]: Advanced -> Silicon Information
- Corrected notification message when a PCH QM87 internal PCI bridge with a lower function number is set to Disabled
Setup [F2]: Advanced -> PCH PCI Express Configuration -> PCH PCI Express Configuration x
PCH PCIe Setup menus are not disabled anymore if PCH PCIe function 0 is set to disabled.
The first not disabled PCH PCIe function will become PCI function 0 (bus 0, device 28).
- Fixed a bug when Setup mode for SMBUS routing was set to “Enabled”
Setup [F2]: Advanced -> Board Configuration -> SMBus to CompactPCI Serial
- Added SCL-RHYTHM, SK5-BALL, SL6-COMBO, SBF-CROSSOVER, SCX-PCIE, SXP-JAM, SPY-RIG, SU3-ENSEMBLE and SU5-ENSEMBLE
in list of installed EKF boards
- Added Setup node to control feature PCI Express Native
Setup [F2]: Advanced -> ACPI Configuration -> Native PCI Express Features
Available options: Disabled, Enabled (Default)
- Enabled Setup node to control the CSM
Setup [F2]: Main -> Boot Features -> CSM Support
Available options: Yes (Default), No
The CSM module (Compatibility Support Module) provides backward compatibility services for legacy OS or Expansion ROMs.
- Changed some Setup defaults of PCI Express settings of both cPCI Serial Fat-Pipe slots
Setup [F2]: Advanced -> PCI Configuration -> SA PCI Express Configuration -> Select max speed for SA PCIe 1 -> Auto
Setup [F2]: Advanced -> PCI Configuration -> SA PCI Express Configuration -> Select max speed for SA PCIe 2 -> Auto
Setup [F2]: Advanced -> PCI Configuration -> SA PCI Express Configuration -> Gen3 Equalization Phase 2 -> Enabled
Setup [F2]: Advanced -> PCI Configuration -> SA PCI Express Configuration -> Gen3 Equalization Preset Search -> Disabled
- Added setup node to always enable cPCI Serial Fat-Pipe slots even if no PCI device is detected during POST
Setup [F2]: Advanced -> PCI Configuration -> SA PCI Express Configuration -> Always Enable SA PCIe Ports
Available options: Disabled (Default), Enabled
- Added custom specific Setup Defaults
2018-03-13: UEFI/BIOS release, Build #244 production
- Added support for an alternate PCI Device ID for all Ethernet controllers of type Intel i210 or i211
detected on CompactPCI Serial on EKF boards SN1-REVERB or SN2-VIBRATO
Setup [F2]: Advanced -> Network Configuration -> Select alternate Device ID for i21x on cPCI Serial
An alternate PCI ID is useful for an Operating Systems which does not support the default Device ID of the i210.
- Added support for Primary VGA on different slots on CompactPCI Serial
Setup [F2]: Advanced -> Graphics Configuration -> Primary Display Selection
Available options are: Intel GD (Default), Fat-Pipe 1, Fat-Pipe 2, cPCI Serial 3-8, Auto
- Added Setup nodes to skip loading of option ROMs for AMD, Nvidia or Silicon Motion graphics controller
Setup [F2]: Advanced -> Graphics Configuration -> Load AMD Option ROM
Setup [F2]: Advanced -> Graphics Configuration -> Load Nvidia Option ROM
Setup [F2]: Advanced -> Graphics Configuration -> Load Silicon Motion Option ROM
Available options: Disabled, Enabled (Default)
AMD or Nvidia options ROMs can be found on MXM modules installed on EKF SV1-CLIP or SV2-MOVIE.
Silicon Motion options ROMs can be found on e.g. XMC graphics module EKF DV1-DRAGON.
- Added setup item to allow to ignore VGA UEFI Options ROMs
Setup [F2]: Advanced -> Graphics Configuration -> VGA Graphics UEFI Option ROMs
Available options: Ignored (Default), Enabled
- Added setup node to control IMON correction for Intel GD
Setup [F2]: Advanced -> Graphics Configuration -> Graphics Turbo IMON correction
Available options: 14-31 (default is 31)
- Added NVMe boot support for all slots on CompactPCI Serial
- Added support for new After-G3 mode “S0 Unconditional”
Setup [F2]: Advanced -> Board Configuration -> Select mode after G3
Available options: S5, S0 Normal, S0 Unconditional (Default), Last State
- UEFI Shell: Added feature to measure memory write speed with utility ekfma
- The CPU speed now shown in Setup “System Information” page is now always the current CPU speed
Setup [F2]: Main -> System Information
- SMBIOS Type 4 CPU speed value is now the performance state read from a CPU register (MSR 0x198)
- Added SRF-FAN and EA4-COUNTRY in list of installed EKF boards
- UEFI Shell: Added new option -n (show only variable names) for utility dmpstore
- Fixed a bug when typing F9 in Setup. A few Setup nodes were not always set to default value.
- Updated Intel Video BIOS V1039 to subversion 4
2017-10-19: UEFI/BIOS release, Build #240 production
- Added support for Intel AMT (Active Management Technology)
Setup [F2]: Advanced -> AMT Configuration
Note that Intel AMT is disabled by default.
- Added support for an alternate PCI Device ID for all on-board Ethernet controllers of type Intel i210
Setup [F2]: Advanced -> Network Configuration -> Select alternate Device ID for NC[2-4]
An alternate PCI ID is useful for an Operating Systems which does not support the default Device ID of the i210.
- Updated UEFI Shell command ekfflash to version 1.7
- Fixed setting of PCIe speed of Fat Pipe 1
- Added Setup node to allow the selection of OS Restart mode
Setup [F2]: Advanced -> ACPI Configuration -> Select ACPI reset Mode
This mode is used when an Operating System restarts the system.
- Added some custom specific Setup Defaults
- Added SX5-STREAM and SA4-COUNTRY in list of installed EKF boards
- To always ensure correct defaults in Setup menu ‘Boot’ all Bootmanager variables will now be deleted if
a) EKF User ID has changed compared to last boot or if
b) Jumper GP is set (for BIOS Setup factory defaults)
- Updated DOS utility progspi.exe to V4.0
2017-07-21: UEFI/BIOS release, Build #230 production
- Issued a error message if detection or initialization of hardware monitor LM87 failed
- Added SK4-WALTZ, SCZ-NVM, SE4-TEMPO and EK4-WALTZ in list of installed EKF boards
- Added Setup node to control cleanup of PLD Status Register 0
Setup [F2]: Advanced -> Board Configuration -> Cleanup of PLD Status Register 0
Available options: Disabled, Enabled (Default)
More Info -> Help Screen
- Added Setup node to control cleanup of PLD Status Register 1
Setup [F2]: Advanced -> Board Configuration -> Cleanup of PLD Status Register 1
Available options: Disabled, Enabled (Default)
More Info -> Help Screen
- If CPU board is inserted in a Peripheral slot now an appropriate message is shown, instead of previous Peripheral board list
- Supported up to four EKF SV2 Boards with Nvidia or AMD MXM modules
- Added support to decrease PCI Express link width of cPCI Fatpipe slots 1 and 2
Setup [F2]: Advanced -> PCI Configuration -> SA PCI Express Configuration
- Added max TOLUD options 500MB and 750MB
Setup [F2]: Advanced -> Memory Configuration -> Select maximum TOLUD
- Fixed a bug when size of MMIO is calculated and max TOLUD is set to Dynamic mode
- Show an appropriate error message if size of requested MMIO is out of range
- Added some options to EKF UEFI Shell command ekfma
- Added EKF UEFI Shell command ekfpci
- Updated EKF UEFI Shell command ekfflash to V1.6
- Updated UEFI Shell command cls
2017-05-17: UEFI/BIOS release, Build #224 production
- Added support for serial ports A-D (COM1-4) of Super-IO SMSC SCH3114 on EKF Expansion boards. Supported are:
- COM port A (COM1) in front panel (bottom) of e.g. EKF CCI-RAP, CCO-CONCERT, PCS-BALLET or SCS-TRUMPET
- COM port B (COM2) in front panel (top) of e.g. EKF CCI-RAP or CCO-CONCERT
- COM port C (COM3) in front panel (bottom) of EKF C32-FIO
- COM port D (COM4) in front panel (top) of EKF C32-FIO
- Added support to control serial ports A-D (COM1-4) on an EKF Expansion board via UEFI/BIOS Setup
Setup [F2]: Advanced -> Super-IO Configuration -> Serial Port [A-D]
Available options: Disabled, Enabled (Default)
Every physical serial port can be mapped to one of four IO base addresses:
Setup [F2]: Advanced -> Super-IO Configuration -> IO Base
Available options: 3F8 (COM1), 2F8 (COM2), 3E8 (COM3), 2E8 (COM4)
Setup [F2]: Advanced -> Super-IO Configuration -> IRQ
Available options: 3, 4, 7, 11 and 15
- Added support for PS/2 Keyboard and Mouse
PS/2 is automatically enabled if a Super-IO (SIO) of type SMSC SCH3114 is detected on an EKF Expansion board.
PS/2 devices can be connected to PS/2 interface of EKF C32-FIO.
2017-02-07: UEFI/BIOS release, Build #222 production
- Added SY8-VMM, SU1-TWIST, SU2-BALLAD, S40-NVME, S80-P6 and SK9-TUNE in list of installed EKF boards
- Supported boot to BootMenu, Setup or UEFI Shell, even if UEFI boot is disabled via BIOS Setup
- Added support for a virtual battery
Setup [F2]: Advanced -> SMART Battery Configuration -> ACPI Virtual Battery
Available options: Disabled (Default), Enabled
- Added support to select ACPI Power State
Setup [F2]: Advanced -> ACPI Configuration -> Select ACPI Power State
Available options: CompactPCI (Default), force battery or force AC
- Build ID table for cPCI peripheral boards and check for valid EEPROM on peripheral boards only
if CPU board is inserted in System Slot
- Smart battery support is only enabled if CPU board is inserted in System Slot
2016-12-08: UEFI/BIOS release, Build #220 production
- Added Setup node which selects timeout after the UEFI Boot Manager invokes a Boot Option
Setup [F2]: Main -> Boot Features -> Select Timeout for Boot Option
Available options: Disabled (Default), 5s, 10s, 20s, 30s, 45s, 1 min, 2 min, 5 min, 10 min, 30 min
- Fixed a bug which disables graphics output during boot when a SV1 or SV2 with an on-board MXM module
(with VGA mode enabled) is inserted in CompactPCI Serial slot Fat Pipe 1 (FP1)
- Reported CPU board revision (and subrevision, if any) in appropriate SMBIOS table
- Reported CPU board serial number in appropriate SMBIOS table
- Reported support for Smart Batteries (via EKF-SBX) in appropriate SMBIOS table
- Show board subrevision (if any) in Setup -> Main -> System Information -> Board Type
- Show board serial number in Setup -> Main -> System Information -> Board Type
- Disabled access of SMBUS devices on CompactPCI, if CPU board is not inserted in System Slot
- Changed the generation of the UUID (Universal Unique ID number) in appropriate SMBIOS table
The new algorithm ensures that the UUID is now really unique.
- Added Setup item which controls the behaviour of POST if an error occured during POST
Setup [F2]: Advanced -> Boot Configuration -> Select Mode on POST Error:
Available options: Default, i.e. use error specific behaviour (Default),
Press Key to continue, 3s delay before continue, No Delay before continue
- Added eflash command utility in UEFI Shell
- Increased number of history screens for UEFI shell from 3 to 20 screen pages
- Restructured and modified Setup items in Setup Main -> Boot Features
- Added initialization of LM87 hardware monitor. This supports monitoring tools which do not
initialize this controller (like SpeedFan for Windows)
2016-10-07: UEFI/BIOS release, Build #210 production
- Added support for PCI devices with 64-bit MMIO BARs
Setup [F2]: Advanced -> PCI Configuration -> Above 4 GB MMIO BAR assignment
Setup [F2]: Advanced -> PCI Configuration -> Above 4 GB MMIO assignment with Legacy OPROM
- Integrated Intel Video BIOS V1039
- Added support for MXM output resource type TMDS for MXM DisplayPort Link A
Setup [F2]: Advanced -> Graphics Configuration -> MXM DP-A Output Resource Type
Available options are: DisplayPort (Default), TMDS
This option is only available if Primary VGA device is not IGD.
- Issued a message if Setup Defaults have been loaded
- Corrected size of memory in Setup -> Main -> System Information if memory is > 10 GB
2016-03-15: UEFI/BIOS release, Build #208 production
- Added SPX-PHASE, SE2-MOOD, CU3-TRIO and CUD-TWIST in list of installed EKF boards
- Issued a warning message if EKF Manufacturing Jumper is set at restart of the system
- Issued a warning message if EKF Jumper GP is set
- Issued a warning message if Intel Management platform is still in Manufacturing mode
- Fixed a bug which showed new cPCI Serial boards as boards with wrong EEPROM data
- Added support for Intel HD Audio Controller with Codec ALC262 on EKF Sideboards
Setup [F2]: Advanced -> South Bridge Configuration -> SB Azalia Config
- Added EKF Shell command ’ema’ (EKF Memory Access)
Allows to measure memory access speed.
2016-01-12: UEFI/BIOS release, Build #206 production
- If using the on-board TPM module under Linux, at least kernel 4.4.x must be used. Older Linux kernels abort with
wrong error message “tpm_crb MSFT0101:00: TPM2 ACPI table has a zero address for the control area” or with
message “tpm_crb MSFT0101:00: ioremap of the command buffer failed”.
More info: https://bugzilla.kernel.org/show_bug.cgi?id=98181
- Fixed a bug in an ACPI method which powers up CompactPCI Serial FatPipe slot 2
- Disabled TPM by default
- To prevent a SMBUS collision with EEPROMs located in some CompactPCI power supplies, SMBUS signals to
CompactPCI Bus are disconnected, before accessing the on-board Config EEPROM on SMBUS address 7.
- Removed all temperature zone TZ01 references from ACPI
2015-11-27: UEFI/BIOS release, Build #204 production
- Disabled Intel HID device “INT33D5” for all OS versions
- Fixed detection problem of certain USB keyboards with integrated HUBs
- Changed default PCI Express speed for both CompactPCI Serial FatPipe slots to GEN2 (5MB/s)
- Fixed a bug if EKF SV1 or SV2 with an on-board MXM module is installed in a CompactPCI Serial slot
Note: If a MXM module on SV1/SV2 is configured as a VGA device, it is currently
not supported in CompactPCI Serial FatPipe slot 1.
2015-11-25: UEFI/BIOS release, Build #202 production
- Added support for Smart Batteries connected to SMBus switch of EKF SBX-DUB
If no SBX-DUB is detected, Smart Battery devices are not available in OS.
Smart Batteries can be controlled with this Setup node:
Setup [F2]: Advanced -> SMART Battery Configuration -> ACPI Smart Battery 1-4
Available options: Auto (Default), Disabled, Forced
- Added Setup node to control EKF SBX-DUB used for Smart Batteries
Setup [F2]: Advanced -> SMART Battery Configuration -> CPCI-S Slot of SBX-DUB
Available options: Auto (Default), Slot GA [0-7]
An error message is shown if EKF SBX-DUB is expected but not found.
- Added an ACPI AC Device to show an OS that the system is on AC or system is on battery
- For diagnostic purposes green LED GP is switched on during initialization of the platform
This results in a short LED flash (0.1 s – 0.5 s) at the early beginning of POST
- Show list of installed EKF peripheral boards during POST
To show a correct list, the following Setup Options must be set appropriate to the system
Setup (F2): Advanced -> Miscellaneous Configuration -> Select System Slot Position
Available options: Left (Default), Right
Setup (F2): Advanced -> Miscellaneous Configuration -> Select number of Slots on Bus
Available options: 1-25 (Default: 9)
- Added check for valid EEPROM configuration data on all EKF CompactPCI peripheral boards
If unvalid configuration data is detected, an appropriate error message is shown.
The check can be controlled by the following Setup option:
Setup [F2]: Advanced -> Miscellaneous Configuration -> Check for valid EEPROM data
Available options: Disabled, Enabled (Default)
- Added check for valid Configuration Data in Config EEPROM on EKF SC2-PRESTO
If unvalid configuration data is detected, an appropriate error message is shown.
- Added check for valid User/Custom data in Config EEPROM on EKF SC2-PRESTO
If unvalid user/custom data is detected, an appropriate error message is shown.
- Added Setup option to execute a fixed delay at the early beginning of POST
Setup (F2): Advanced -> Miscellaneous Configuration -> Execute Delay after Reset
Available options are: Disabled (no delay), 100ms (Default), 250ms, 500ms, 1s, 4s, 12s or 30s
If enabled, it allows certain devices to finish its internal initialization before
POST has access to these devices. The delay is indicated by a red blinking LED GP
in front panel of SC2-PRESTO.
- Added Setup node to control SMBus routing to CompactPCI
Setup [F2]: Advanced -> Board Configuration -> SMBus to CompactPCI Serial
Available options: Disabled, Auto (Default), Enabled
- Added Setup node to control SMBus routing to an EKF Sideboard
Setup [F2]: Advanced -> Board Configuration -> SMBus to EKF Sideboard
Available options: Disabled, Auto (Default), Enabled
- Added feature to select function of red button in front panel ejector
Setup [F2]: Advanced -> Board Configuration -> Function of front panel ejector
Available options for PLD Rev >= 6: None, Power (Default), Reset
Available options for PLD Rev < 9: None, Power (Default) - Show revision number of on-board PLD (Programmable Logic Device) Setup [F2]: Main -> System Information -> PLD Revision
- Show an error message if last system reset was caused by a Power Failure
Details of a power failure are shown in Setup
Setup [F2]: Main -> System Information -> Power Status
- Show a warning message if last system reset was caused by a PLD Watchdog timeout
- Added display of User ID in Setup
Setup [F2]: Main -> System Information -> User ID
2015-11-20: UEFI/BIOS release, Build #200 production
- Integrated new Phoenix code base v3.1.0.637
2015-10-01: BIOS release, Build #196 production
- Renamed SATA strings in Setup and Boot menu to reflect that SATA devices are attached to Intel SATA controller
- Extended help info for Setup node “Intel SATA -> HotPlug”
- Extended help info for Setup node “Intel SATA -> External”
- Optimized electrical tuning for Intel SATA ports 3-5, routed to cPCI Serial
- Added support for a TPM (Trusted Platform Module)
Setup [F2]: Security -> TPM Support
Available options are: Disabled, Enabled (Default)
Note: A TPM is only available on SC2-PRESTO >= Rev.1
- Added support for SA (System Agent) Audio Device, used for Audio over DisplayPort
2015-05-29: BIOS release, Build #194 production
- Extended ACPI PCI bus support from 63 (0x3F) buses to 256 (0x100) buses (with PCI bus numbers from 0-255)
- Enabled access to Memory Mapped PCI Configuration Space for PCI devices on PCI buses >= 64 (0x40)
- Removed unused PCH PCI device entries from IRQ routing table
- Added boot support for SATA devices connected to Intel SATA interface 5
Setup [F2]: Advanced -> SATA Configuration -> Serial ATA Port 5
This Intel SATA interface is routed to last slot on cPCI Serial bus.
- Added boot support for SATA devices connected to Intel SATA interface 6 (routed to cPCI Serial)
Setup [F2]: Advanced -> SATA Configuration -> Serial ATA Port 6
This Intel SATA interface is routed to cPCI Serial. cPCI slot number is dependent of SC2-PRESTO board revision.
- Added routing description of all Intel PCH SATA ports in BIOS Setup help screen
Setup [F2]: Advanced -> SATA Configuration -> Serial ATA Port [1-6] -> Port Enable
- Replaced PCI subsystem vendor ID of some Intel on-board PCI devices by 0xE4BF (EKF PCI vendor ID)
- Replaced PCI subsystem device ID of some Intel on-board PCI devices by 0x53C2 (EKF SC2-PRESTO device ID)
- Added routing description of Intel PCH PCI Express ports in BIOS Setup help screen
Setup [F2]: Advanced -> PCH PCI Express Configuration -> PCH PCI Express Root Port [1,4,5] Configuration
- Removed configuration support for unused PCH PCI Express Ports 2, 3, 6, 7 and 8 from BIOS Setup
- Adapted OEM IDs used in MP table to EKF SC2-PRESTO
- Show board manufacturer, board type and board revision in Setup “System Information”
Setup [F2]: Main -> System Information
- Adapted look of diagnostic screen to EKF standard
- Removed unsupported devices PS/2 Mouse and serial COM ports from ACPI tables
- Changed ACPI thermal management. ACPI thermalzone TZ00 is now used for passive cooling.
Setup [F2]: Advanced -> ACPI Configuration -> ACPI management for TZ00
Available options are: Disabled, Enabled (Default)
Setting this item to Disabled, returns fixed temperature 30 deg C from ACPI thermalzone TZ00.
- Keyboard NumLock LED now switched on per default
2015-03-19: BIOS release, Build #190 production
- Fixed a BIOS hang when no monitor is attached
- Added support for bottom DP interface in front panel of SC2-PRESTO (supports DP and DVI over DP)
- Enabled Video HotPlug Support under DOS
- Disabled xHCI boot support to avoid hangs during POST when a non-Intel xHCI (USB 3.0) controller is detected
- Integrated new Phoenix code base v3.1.0.408
2014-12-23: First BIOS production release, Build #100
Release Notes 
EKF Elektronik GmbH
EKF Elektronik GmbH