Intel DX79SI ‘Siler’ Motherbaord Gets PCI Express 3.0 Functionality With BIOS Update

By Nathan Kirsch

Intel just sent us word that they have released BIOS Version 0424 (SIX7910J.86A.0424.2012.0127.1620) for their DX79SI motherboard! This BIOS update includes 20 fixes, updates or new features! We’ve been asking Intel why their flagship Sandy Bridge-E motherboard doesn’t support PCI Express 3.0 for weeks and it appears that with this BIOS update the board now supports the PCI Express 3.0 specification. This is good news for AMD Radeon HD 7900 video card owners as they can run their card at its full potential. Sure, the gains of PCI Express 3.0 are hardly noticeable, but at least the board now supports it! You can download the latest BIOS to flash your board here. This was the last Intel X79 motherboard on the market to get PCI Express 3.0 support, which is strange considering Intel made the chipset and board!

Intel DX79SI motherboard

New Fixes/Features in BIOS Version 0424:

  • Fixed issue with BIOS Recovery support.
  • Added keyboard controller reset workaround.
  • Fixed issue where internal PLL override option does not work correctly.
  • Fixed issue where non-XE CPU will not run in Turbo speed.
  • Updated processor support.
  • Fixed issue with manual mode fan control.
  • Updated FSC Stack.
  • Updated GUID defined section Security check.
  • Disabled ACPI OS native PCI Express support when certain graphics card is installed in the system.
  • Improved memory stability at higher memory speed.
  • Updated Turbo Ratio maximum limit in BIOS Setup.
  • Updated Turbo related options range in BIOS Setup.
  • Improved BIOS watchdog timer support for Intel Extreme Tuning Utility.
  • Updated PEG slot to support PCIe Gen3.
  • Updated Setup options for Overclocking Assistance and Turbo Ratio.
  • Added support for Primary/Secondary Temperature Input parameters to controller.
  • Fixed issue where some USB optical drives are not detected.
  • Fixed random hang at boot on systems with TPM present.
  • Fixed POST hang at boot with cursor at top-left of screen with certain option ROM configurations.
  • Updated SATA RAID option ROM to version 1370.
Intel

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