iMatt84 Posted September 29, 2011 Share Posted September 29, 2011 So I recently got two more 2GB sticks of ram for my Hackintosh. I use [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] to start it up, and [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] says 8gb of ram. About this mac and system profiler says only 4gb of ram even though when I go under memory in system profiler it lists all 4 2GB cards I noticed that the Apple logo that shows up when booting up Snow Leopard (10.6.8) loads much faster since the ram upgrade. Is it possible that OSX is really using 8GB of ram but just not displaying it in system profiler? Again this was a clean install of OS X I didn't use any bootloaders besides [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] and any DSDTs or kext files to get everything working 100% Link to comment Share on other sites More sharing options...
nyolc8 Posted September 29, 2011 Share Posted September 29, 2011 Maybe you need to change something in the smbios.plist file. (Just an idea) Try to add SMmemmanufacturer, SMmempart, SMmemserial... etc. for the new memsticks. Maybe then system profiler will show them. Link to comment Share on other sites More sharing options...
iMatt84 Posted September 29, 2011 Author Share Posted September 29, 2011 I ran a RAM testing app that detects all 4x 2gb ram memory cards. I think the system profiler is just faulty because the apple logo only lasts about 7 seconds or so until it boots into Snow Leapord, more than 2x faster loading time than with 4gb of ram. Here are some screen caps: Link to comment Share on other sites More sharing options...
Vic320 Posted October 4, 2011 Share Posted October 4, 2011 I ran a RAM testing app that detects all 4x 2gb ram memory cards. I think the system profiler is just faulty because the apple logo only lasts about 7 seconds or so until it boots into Snow Leapord, more than 2x faster loading time than with 4gb of ram. Your box is running in 32-bit mode. The cap for 32-bits is 4GB. It does not matter that you have a 64-bit processor your motherboard supports 64-bits, if the OS is not loading the 64-bit kernel, then the kernel can only address 4GB even though System Profiler can see all of the hardware installed and report it's size correctly. I am having the same problems. I was under the impression that I was booting in 64-bit mode because apps like Photoshop where loading their 64-bit versions but I have come to find out that this can happen even with the 32-bit kernel. I am researching how to get my machine to boot in 64-bit mode. I assume that since Lion requires a 64-bit box, upgrading to Lion will solve my/our problem(s) but I am not sure about that yet... If anyone else has any insight, I would appreciate it. Link to comment Share on other sites More sharing options...
Gringo Vermelho Posted October 4, 2011 Share Posted October 4, 2011 Your box is running in 32-bit mode. The cap for 32-bits is 4GB. No, this is only true on Windows. It's true that each running app will only be able to address 4GB RAM but OS X can use up to 32GB RAM with running in 32-bit kernel and drivers mode. All your RAM is available just with a max of "only" 4GB for each process. Read http://apple.stackexchange.com/questions/2...ows-32-bit-cant Link to comment Share on other sites More sharing options...
Vic320 Posted October 10, 2011 Share Posted October 10, 2011 I stand corrected... To be clear, if my box has 12 GB of RAM installed and it is running the 32-bit kernel, all 12 GB can still be accessed and assigned to different apps? For example, if app A is 32 bit, it can have 4GB of RAM allocated to it, if I then launch app B, which is a 64-bit app and it wants 6GB of memory, the OS can allocate another 6GB for that app?Leaving 2GB for the OS and free space? Is this correct? Also, if this is correct, why does the "About this Mac" pane only show 4 GB? Should it not show all 12GB? Link to comment Share on other sites More sharing options...
Gringo Vermelho Posted October 10, 2011 Share Posted October 10, 2011 Yes, except, as I said, a max of 4GB can be allocated to a process. I don't know where you got the 6GB from. It doesn't matter if the process itself is 32- or 64-bit. When running in 32-bit kernel and drivers mode, a process can have a maximum of 4GB allocated to it. Follow the link I posted and read more about how this works. I don't know why about this Mac doesn't show all your RAM. Link to comment Share on other sites More sharing options...
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