MacSac Posted March 12, 2010 Share Posted March 12, 2010 Hi iDeneb v1.5.1 (OS X Leopard 10.5.7) installation - everything works fine except I have to boot with cpus=1 and OS X only sees one CPU, which means slow performance. I read about patching your DSDT to resolve this but apparently you do not need 'DSDT.aml' in your root folder anymore after 10.5.6. I used DSDT patcher 1.0.1e, put the dsdt.aml in the root and rebooted, but no joy. System reboots as soon as i reach the Chameleon boot screen, unless i enter 'cpus=1'. Please help, i've searched and tried to figure this out, but i am stuck. Core2Duo 2.0 ghz; Asus P5LD2 SE motherboard. Vanilla kernel. Thanks very much Link to comment Share on other sites More sharing options...
MacSac Posted March 12, 2010 Author Share Posted March 12, 2010 The message that flashes on the Chameleon screen before the computer restarts when i don't enter 'cpus=1' is efi_inject_get_devprop_string NULL trying stringdata Any help most appreciated! Link to comment Share on other sites More sharing options...
peach-os Posted March 13, 2010 Share Posted March 13, 2010 your problem is a common thing. it is not enough to create dsdt - you have to patch it. search for the dsdtse tool and use this searchengine for solutions http://www.google.com/cse/home?cx=00948655...297:e41g72sr-ba also I would do a retail install - this might be a solution as well. Link to comment Share on other sites More sharing options...
MacSac Posted March 13, 2010 Author Share Posted March 13, 2010 your problem is a common thing. it is not enough to create dsdt - you have to patch it. search for the dsdtse tool and use this searchengine for solutions http://www.google.com/cse/home?cx=00948655...297:e41g72sr-ba also I would do a retail install - this might be a solution as well. Thanks, peach-os. I opened my DSDT in the dsdtse tool by ev0sx86. The fix i've read a few times and that the dsdtse tool suggests to remedy the cpus=1 problem doesn't work for me - because what they suggest is not present in my dsdt (removing the Alias lines where relevant). i have attached my DSDT.aml if that helps you or anyone else help me further. Thanks! dsdt.aml.zip UPDATE: OK so i installed a new kernel - Voodoo Based XNU 980 v2 and this seems to have fixed the problem! Both cores detected in System Profiler and Activity Monitor - up and running for 20 minutes now and no problems! Link to comment Share on other sites More sharing options...
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