Intel DZ87KLT-75K Desktop Board BIOS 0450

Fixes:
- Updated fan speed control module.
- Fixed issue that prevented booting and installing some operating systems, such as SteamOS.
- Fixed issue where Hard Disk Drive Password length did not match the specification.
- Fix issue where UEFI operating system fails to install.
- Improved EFI variable protection for Setup variable.
- Fixed issue where computer will not boot with XMP memory.
- Modified TCWL MAX value to 10 for XMP Profiles issue.

Versions:

- ME Firmware: 9.0_1.5M_9.0.20.1447
- Integrated Graphics Option ROM: Build 2179
- Integrated Graphics UEFI Driver: 5.0.1034
- SATA RAID Option ROM: v12.0.0.1783
- LAN Option ROM: v1410 PXE 2.1 Build 092
- LAN UEFI Driver: 5.1.00
- Visual Bios: 2.1.5 Production Candidate Build
- UEFI revision: 2.3.1

Which file to choose:

- Recovery BIOS Update [KL0450.BIO] - A .BIO file to be used for F7 BIOS Update method or a BIOS recovery process. In the unlikely event that a BIOS update is interrupted, it is possible the BIOS may be left in an unusable state. Use the recovery BIOS update to recover from this condition. It requires a USB flash device or CD..
- Iflash BIOS Update [KLZ8711D.86A.0450.BI.ZIP] - A DOS-based utility to update the BIOS regardless of operating system. It requires a USB flash device or CD.
- Express BIOS Updates: KLZ8711D.86A.0450.EB.EXE - Self-extracting Windows-based update file, designed to be used on Windows systems. This method is the most commonly used.
- Express BIOS Updates: KLZ8711D.86A.0450.EB.WINPE64.EXE – for WinPE - Self-extracting Windows-based update file, designed to be used with either Microsoft Windows PE.x64 or Microsoft Windows x64 operating systems.

Important:

- BIOS version 0446 added support for Microsoft Windows 8.1. After updating to version 0446 or later, you will not be able to downgrade to version 0346 or earlier. The following warning message will display: “This BIOS is not allowed to downgrade reversion, but system will do reset in 20 seconds automatically.”
- Downgrading the BIOS to an earlier version is not recommended and may not be supported. An earlier BIOS version may not contain the support for the latest processors, bug fixes, critical security updates, or support for the latest board revisions currently being manufactured.
- Update the BIOS on your computer only if the newer BIOS version specifically solves a problem you have. We do not recommend BIOS updates for computers that do not need it.
- If a BIOS update process is interrupted, your computer may not function properly. We recommend the process be done in an environment with a steady power supply (preferably with UPS).