jrkilroy Posted October 22, 2009 Share Posted October 22, 2009 Hi, I've been trying to get Snow Leopard running on my system for about 2 months now. I use a USB stick for install. That works fine. The SL install completes without any errors. When I reboot for the first time, I load for a while, then get an HPET Intel CPU power management error. Things I have tried: Removing power management kexts from my USB (EFI) stick Removing Nvidia kexts from my USB (EFI) stick Booting in Safe Mode Booting in Single User Mode Removing Networking kexts from my USB (EFI) stick Swearing Fist Shaking Nothing seems to work. Anyone have any additional troubleshooting steps to try? Here is some hardware info: i7 920 6 Gig 1333 RAM EVGA x58 LE motherboard 1 Gig SATA HD (Windows) 500MB SATA HD (Mac) EVGA Nvidia 260 Superclock. DVD Drive AHCI is set on ACPI is set on CxE is disabled No overclocking I've tried CPU virtualization on and off Link to comment https://www.insanelymac.com/forum/topic/193482-still-hoping-for-the-best-hpet-panic/ Share on other sites More sharing options...
brillo23 Posted October 23, 2009 Share Posted October 23, 2009 Hi, I've been trying to get Snow Leopard running on my system for about 2 months now. I use a USB stick for install. That works fine. The SL install completes without any errors. When I reboot for the first time, I load for a while, then get an HPET Intel CPU power management error. How did you make your usb stick? What is in your /Extra directory? Link to comment https://www.insanelymac.com/forum/topic/193482-still-hoping-for-the-best-hpet-panic/#findComment-1307592 Share on other sites More sharing options...
Bit Shoveler Posted October 23, 2009 Share Posted October 23, 2009 A DSDT fix is the right way to deal with this. You actually have the same HPET hardware as a Mac Pro, but the DSDT built into your mobo's BIOS doesn't recognize OSX. Link to comment https://www.insanelymac.com/forum/topic/193482-still-hoping-for-the-best-hpet-panic/#findComment-1307598 Share on other sites More sharing options...
jrkilroy Posted October 23, 2009 Author Share Posted October 23, 2009 Thank you for your responses. I used Digital Dreamers guide/script to create the USB stick. I will look into the DSDT. Last night I stripped out all the device specific kexts and still generated the HPET error, so I'm leaning less towards that. Link to comment https://www.insanelymac.com/forum/topic/193482-still-hoping-for-the-best-hpet-panic/#findComment-1308107 Share on other sites More sharing options...
Drew Smith Posted October 26, 2009 Share Posted October 26, 2009 Hi, I've been trying to get Snow Leopard running on my system for about 2 months now. I use a USB stick for install. That works fine. The SL install completes without any errors. When I reboot for the first time, I load for a while, then get an HPET Intel CPU power management error. Things I have tried: Removing power management kexts from my USB (EFI) stick Removing Nvidia kexts from my USB (EFI) stick Booting in Safe Mode Booting in Single User Mode Removing Networking kexts from my USB (EFI) stick Swearing Fist Shaking Nothing seems to work. Anyone have any additional troubleshooting steps to try? Here is some hardware info: i7 920 6 Gig 1333 RAM EVGA x58 LE motherboard 1 Gig SATA HD (Windows) 500MB SATA HD (Mac) EVGA Nvidia 260 Superclock. DVD Drive AHCI is set on ACPI is set on CxE is disabled No overclocking I've tried CPU virtualization on and off Don't worry, I had this problem too, it is a DSDT problem. what I did was download the DSDT Patcher, made by PCWiz. once I downloaded it, I opened the app, selected the options "Darwin/Mac OS X" on the left pane, on the right i selected "New HPET option" and "Apply DSDT patch to:" and set the drive to my Snow Leopard Partition. Click run, and the DSDT.aml should be on the root of the Snow Leopard Partition. just to make sure, I copied this to the Snow Leopard Drive/extra folder, which is added by Chameleon, and all was fine. Link to comment https://www.insanelymac.com/forum/topic/193482-still-hoping-for-the-best-hpet-panic/#findComment-1310666 Share on other sites More sharing options...
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