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Here's my current BIOS settings

 

 

OC Tweaker
--------------
Overclock Mode - Auto
-> BCLK 133
-> PCIE 100
Boot Failure Guard - Enable
Boot Failure Guard Count - 3
Spread Spectrum - Auto

CPU Ratio Setting [Auto]
QPI Freq - Auto
Uncore Freq - Auto
DRAM Freq - 533MHz DDR3_1066
-> DRAM Timing Control
tCL - Intelligent Energy Saver - Disabled
CPU Voltage - Auto
DRAM Voltage - Auto or 1.5
IOH Voltage - Auto
VTT Voltage - Auto
ICH Voltage - Auto
IOH CSI Voltage -Auto
IOH/ICH PCIE Voltage - Auto
CPU PLL Voltage - Auto

Advanced
--------
CPU Config
->
CPU Ratio - Auto
Enhanced Halt State (C1E) - Enabled
Intel Virtualization Tech - Enabled
CPU Thermal Throttling - Enabled
No-Execute Memory Protection - Enabled
Intel HT Technology - Enabled
Active Processor Cores - All
A20M - Disabled
Intel Speedstep Tech - Enabled
Intel TurboMode Tech - Enabled
Intel C-State Tech - Enabled
C State package limit setting - C6
<-

Chipset Settings
->
Primary Graphics Adapter - PCI Express
Onboard HD Audio - Auto
Front Panel - Auto
Onboard Lan - Enabled
Onboard 1394 - Enabled

CIR10 Field 1 - Disabled
PCIE Max Payload Size - 256B
Intel VT-d - Enabled

Good Night LED - Disabled
Port80 LED after POST - Disabled

APMC Control (L0s/L1) - Disabled
QPI L0s and L1 - Disabled
<-

ACPI Config
->
Suspend To Ram - Auto
Check Ready Bit - Enabled

Restore on AC/Power Loss - Power Off
Ring-In Power On - Disabled
PCI Devices Power On - Disabled
PS/2 Keyboard Power On - Disabled
RTC Alarm Power On - By OS

ACPI HPET Table - Enabled
<-

Storage Config
->
SATA II Config - Enhanced
Config SATAII as - AHCI
Hot Plug - Enabled
SATA Link Power Management - Enabled
SATA3_1,2 Operation Mode - Enabled
SATA3_3,4 Operation Mode - Enabled
SATA3_5,6 Operation Mode - Enabled
<-

PCI/PnP Settings
->
PCI Latency Timer - 32
PCI IDE BusMaster - Enabled
<-

Floppy Config
->
Floppy A - Disabled
<-

SuperIO Config
->
Onboard Floppy Controller - Disabled
Serial Port Address - Disabled
Infrared Port Address - Disabled
<-

USB Config
->
USB Controller - Enabled
USB 2.0 Support - Enabled
Legacy USB Support - Enabled

USB Keyboard/Remote Power On - Disabled
USB Mouse Power On - Disabled

Onboard USB3 Controller - Enabled
<-

 

 

Install method - Used nawcom's mod CD and retail Snow Leopard 10.6.3 install disc

 

What's working (so far)

  • Audio (with some issues)
  • Native Speedstep
  • QE/CI/Resolution
  • Native USB (with minor DSDT editing for EHCI sleep properties)
  • Ethernet (lyn2x's kext for RTL8111)
  • USB3 (PXHCD kext)
  • Everything :P

DSDT edits:

  • HDEF entry added for ALC892
  • SBRG (LPC) spoofed from 3A16 to 3A18
  • TIMR/RTC IRQ's removed
  • UHCI/EHCI DSM entries; mostly sleep related
  • GIGE entry added
  • "fwhub" entry added
  • SBUS entry
  • PWRB changed from HID->CID
  • DTGP added
  • Darwin entry added
  • WAK fix
  • MUTE entries changed to 0xFFFF
  • More?

Notes on DSDT edits -

Some of the DSDT edits I did seem to be rather pointless, so I'm playing with either removing them, or getting them to do what I want them to do. USB modification was done before because EHCI devices didn't show as 'built in' initially; after removing the DSM entries, they still show as 'built-in', so apparently something else caused the problem and I don't need them (unless they will fix something else).

 

The Darwin addition also doesn't seem to help or do anything one way or another. Since this was a modification to begin with, I think I may remove it as well, as removing it currently certainly won't hurt anything.

 

I've included my entire Extra folder (Extensions, DSDT, smbios.plist, and org.chameleon.Boot.plist) to help anyone else with this board. There is also an entry to make the graphics card in the first PCI-x16 slot appear in System Profiler.

 

Edit: I noticed BIOS 1.60 had been out a few months and figured I should go ahead and update. Did a very light DSDT patch (dumped ACPI in windows, patched stuff). I've also included my new DSDT, which isn't as re-arranged, but has all the important stuff. Dunno why my powerbutton isn't being recognized. If anyone else has this board and wants to try it out, lemme know what's missing.

Extra.zip

Extreme6 x58 Extras v1.60.zip

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