Mac-Sysadmin Posted July 12, 2011 Share Posted July 12, 2011 I'm trying to get my 2x 4GB RAM modules to work. OS X 10.6.8 only uses 4GB. I think its because when I look into the systemprofiler it tells me that my mainboard has 4 slots: Bank0/1/A0 - 4GB Bank2/3/A1 is empty Bank4/5/A2 - 4GB Bank6/7/A3 is empty But my Mainboard, a Gigabyte H61M-D2-B2, has only 2 slots! I have used the DSDT-GA-H61M-D2-B3-F4.aml file or is it relayted to something else? What do I have to do to get the full 8GB within SL? The BIOS and W7 can see the 8GB, so the hardware is OK. Link to comment Share on other sites More sharing options...
moarfish Posted July 14, 2011 Share Posted July 14, 2011 I'm trying to get my 2x 4GB RAM modules to work. OS X 10.6.8 only uses 4GB. I think its because when I look into the systemprofiler it tells me that my mainboard has 4 slots: Bank0/1/A0 - 4GB Bank2/3/A1 is empty Bank4/5/A2 - 4GB Bank6/7/A3 is empty But my Mainboard, a Gigabyte H61M-D2-B2, has only 2 slots! I have used the DSDT-GA-H61M-D2-B3-F4.aml file or is it relayted to something else? What do I have to do to get the full 8GB within SL? The BIOS and W7 can see the 8GB, so the hardware is OK. ARe you running in 32bit mode? 32bit mode can only recognize 4GB RAM. Run in 64bit mode and see. Link to comment Share on other sites More sharing options...
Mac-Sysadmin Posted July 14, 2011 Author Share Posted July 14, 2011 ARe you running in 32bit mode? 32bit mode can only recognize 4GB RAM. Run in 64bit mode and see. How/were can I change the mode? Link to comment Share on other sites More sharing options...
ruger42 Posted July 14, 2011 Share Posted July 14, 2011 ARe you running in 32bit mode? 32bit mode can only recognize 4GB RAM. Run in 64bit mode and see. That is not correct, 32bit mode can recognize up to 32GB of RAM. How/were can I change the mode? Before you try to change modes, check your com.apple.Boot.plist file to make sure you don't have maxmem=4096 as a boot flag. If not I would suggest creating your own DSDT file to see if that fixes your problem... Link to comment Share on other sites More sharing options...
moarfish Posted July 15, 2011 Share Posted July 15, 2011 Wiki: A 32-bit address register meant that 4 GB of RAM, could be referenced. Link to comment Share on other sites More sharing options...
ruger42 Posted July 15, 2011 Share Posted July 15, 2011 Wiki: A 32-bit address register meant that 4 GB of RAM, could be referenced. From a discussion on the Apple forum: "In Mac OS X, the 32-bit kernel can actually use up to 32 GB of RAM (it uses a 36-bit memory addressing scheme). However, 32-bit applications are limited to 4 GB each." I'm running in 32-bit mode with 8 GB of fully functional RAM... Link to comment Share on other sites More sharing options...
Mac-Sysadmin Posted July 17, 2011 Author Share Posted July 17, 2011 I don't have a maxmem=4096 within my com.apple.Boot.plist file in the com.apple.Boot.plist in the Extra folder. How do I change the mode? Fixed! The reason was that my Hackintosg didn't boot from the harddrive. If you boot from [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] you are not able to use more than 4 GB Ram. Thanx to Tony! Link to comment Share on other sites More sharing options...
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