androdev Posted June 6, 2012 Share Posted June 6, 2012 Dell Inspiron 15R N5110 Native Speedstep BIOS Modding and possibly other AMI Aptio-based notebooks Hi everyone. I'm here to share my bios modding experience. It was a long road before I had a native speedstep. I want to thank dgsga in general for his bios unlock guide, as mine is fully based on it. I also thank carlicous for his great post http://forum.noteboo...88-post141.html up here, explaining UEFI bios MSRs modding. It was a pleasure working with guides from applelife.ru (hi Clover EFI!) and http://www.insanelym...howtopic=271573 Dell guide from Mohamed Khairy (IDT Apple HDA!). I would never change my opinion now: 15R is most hackintoshable notebook I ever had. Thank you all! Lets start with the tools you need. It's basically: - Latest (A10 on the moment) bios package from Dell site. Simply unpack the ROM file: C:\Users\Владислав>cd "C:\Users\Владислав\Desktop\Dell 15R UEFI" C:\Users\Владислав\Desktop\Dell 15R UEFI>N5110A10.exe /writeromfile - Latest Phoenix Tool (202 included) - Latest MMTool (or not latest, not important in fact, 4.50 is here) - objdump tool - HEX Editor (included one for you) - Flash tool I created an archive which I upload for you, with all essential tools included. I do not upload a modded bios as it's your responsibility if you brick something. Dell 15R UEFI.zip The process itself: 1. Start Phoenix Tool and select your ROM file. It has some information for you, press OK twice. Do not close it just now. 2. Use MMTool to locate your PowerManagement module. It's confirmed to have GUID 8C783970-F02A-4A4D-AF09-8797A51EEC8D for all latest Aptio bioses. 3. Find this file (choose the largest one, mine is 16Kb), copy to another place and disassemble it: C:\Users\Владислав>cd "C:\Users\Владислав\Desktop\Dell 15R UEFI" C:\Users\Владислав\Desktop\Dell 15R UEFI>objdump -m i386 -b binary -D 8C783970-F 02A-4A4D-AF09-8797A51EEC8D_1_276.ROM > PowerManagement.asm 4. Take a look at the code in output file. We need to unlock bit 15 of MSR 0xE2. The 0xf is lock bit. Search for 0f ba e8 0f and look above for mov $0xe2,%ecx This is the place we need to mod. 5. As dgsga explains, we need to jump unconditionnaly, not allowing the setting of bit lock. The requied change is jne 0x2748 to jmp 0x2748 6. This is a code from my bios in fact: 2724: b9 e2 00 00 00 mov $0xe2,%ecx 2729: e8 8e 09 00 00 call 0x30bc 272e: 48 dec %eax 272f: 89 44 24 30 mov %eax,0x30(%esp) 2733: 0f ba f0 0f btr $0xf,%eax 2737: 89 44 24 30 mov %eax,0x30(%esp) 273b: 80 fb 01 cmp $0x1,%bl 273e: 75 08 jne 0x2748 2740: 0f ba e8 0f bts $0xf,%eax 2744: 89 44 24 30 mov %eax,0x30(%esp) Open hex edit and patch the module file with 75 08 0F BA E8 0F 89 44 24 30 to EB 08 0F BA E8 0F 89 44 24 30 and click on save. 7. Get back to Phoenix. Select Dell as manufacturer. In advanced tab tick Allow user to modify other modules No SLIC and finally press Go. 8. It will ask you to perform your modifications to modules. Replace the module in DUMP folder with your edited one. Press OK. 8. It will create a new bios file, which you only left to flash. The flash tool is included. Everything is done on Windows 8 Release Preview running in native mode. 3 Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/ Share on other sites More sharing options...
hisho Posted June 6, 2012 Share Posted June 6, 2012 i don't get step 3 quite well, what file that we need to disassemble ?, PowerManagement . asm is o bytes Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1824993 Share on other sites More sharing options...
Florin9doi Posted June 7, 2012 Share Posted June 7, 2012 Download link: http://www.mediafire.com/?x4979dnkic4sk Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1825200 Share on other sites More sharing options...
jkbuha Posted June 10, 2012 Share Posted June 10, 2012 Great work androdev! I've followed your method to successfully unlock bit 15 of MSR E2 on the Dell XPS 15z (and XPS 15 - the BIOS structure is very similar). The BIOS module was different to the 15R, but with MMTool you can easily find the powermanagementefi module. Have you tried to unlock the advanced menus in your BIOS yet? Great work and thanks again! 1 Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1825700 Share on other sites More sharing options...
DMMA Posted June 20, 2012 Share Posted June 20, 2012 thanks, seems to be working Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1828103 Share on other sites More sharing options...
TimeWalker75a Posted July 2, 2012 Share Posted July 2, 2012 Thank you, This also worked fine with Pheonix SecureCore Tiano UEFI bios. You have to use MMTOOL in order to figure out the UUID of the powermanagement efi module. For a DELL Vostro 3450 (A11) bios the UUID of the the power management module is the following: F7731B4C-58A2-4DF4-8980-5645D39ECE58_1_626.ROM For patching follow instructions in the OP. For flashing however you use the stock winflash utility that comes with the rom package (exe) which you get from Dell's support page. Upon execution it will extract itself as well as the rom you are going to work with into a temp folder in the user directory. Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1830830 Share on other sites More sharing options...
Julio Vargas Posted July 2, 2012 Share Posted July 2, 2012 Download link: http://www.mediafire.../?x4979dnkic4sk Hi Florin9doi, i have a laptop like yours. Can you tell me how to implement the bios you have prepared with native speedstep. thanks Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1830888 Share on other sites More sharing options...
Julio Vargas Posted July 7, 2012 Share Posted July 7, 2012 Hi Florin9doi, i have a laptop like yours. Can you tell me how to implement the bios you have prepared with native speedstep. thanks Flash Bios to A10 with SpeedStep. Thanks to Florin9doi Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1831687 Share on other sites More sharing options...
Albertraviss Posted July 28, 2012 Share Posted July 28, 2012 Hey androdev. I downloaded the bios on that link above which i thnk is already modded but i cant flash my notebook cos with the tool u provided i get the message that bios is write protected. I believe i have an optio bios on Dell inspiron N5110 intel 2670qm core i7. Please tell me how best to use that tool and avoid those errors. I really need this cos am running some power hungry applications and speedstep would really do me some good. I bench marked my Laptop and got 8210 but i believe i can do better cos in windows i have 10200. Thanks in advance ,and for makin me feel that i made the right choice of a notebook. Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1838134 Share on other sites More sharing options...
izon Posted August 19, 2012 Share Posted August 19, 2012 then what? The air is hot and the fan is always working. How to lower the speed of the fan and cooler the air? Link to comment https://www.insanelymac.com/forum/topic/279576-dell-inspiron-15r-n5110-native-speedstep-bios-modding/#findComment-1845372 Share on other sites More sharing options...
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