Hello everyone,
I having a hard time with my Macpro 5.1, HD5770 Apple Gpu. dual processor xeon e5620 @2.4ghz, memory 16ghz... to make long story short.
The main issue surface after i have to replace the backplane and the powersupply at the same time, they are both new, not refurbished.
I got the power supply about a week ago, install them all together and since then it failed to boot.
when I pressed the power button, its On, fans are running, Diagnostic Led on board normal(as suggested in the service manual), Chime on, Apple logo and booting bar appear, but halfway about 60% it restart and continue to be like that.
Heres what i tried:
0. reset Pram/smc
1. Failed to enter recovery mode CMD+R and CMD+OPT+R for internet recovery
2. Wipe off the HD for clean install(using different computer), reinstall process stops at about 60% too. try installing the HD in the other mac and bring the HD over to MP5.1. it loads on the other mac, but not on the MP5.1
3. enter verbose mode stuck at appletymecdriver, i did try to delete the kext, off course failed because SIP is enable, and cant disable it because cant enter recovery mode. last shutdown cause by -128.
i wonder if theres a workaround to be able to delete this kext
4. Test with AHT and ASD, resulting in no hardware problem.
5. @tsialex recommend me to test the memory with memtest86, after few hours result is success with no memory issue.
Im kinda at the edge, any of you guys experiencing this?
I having a hard time with my Macpro 5.1, HD5770 Apple Gpu. dual processor xeon e5620 @2.4ghz, memory 16ghz... to make long story short.
The main issue surface after i have to replace the backplane and the powersupply at the same time, they are both new, not refurbished.
I got the power supply about a week ago, install them all together and since then it failed to boot.
when I pressed the power button, its On, fans are running, Diagnostic Led on board normal(as suggested in the service manual), Chime on, Apple logo and booting bar appear, but halfway about 60% it restart and continue to be like that.
Heres what i tried:
0. reset Pram/smc
1. Failed to enter recovery mode CMD+R and CMD+OPT+R for internet recovery
2. Wipe off the HD for clean install(using different computer), reinstall process stops at about 60% too. try installing the HD in the other mac and bring the HD over to MP5.1. it loads on the other mac, but not on the MP5.1
3. enter verbose mode stuck at appletymecdriver, i did try to delete the kext, off course failed because SIP is enable, and cant disable it because cant enter recovery mode. last shutdown cause by -128.
i wonder if theres a workaround to be able to delete this kext
4. Test with AHT and ASD, resulting in no hardware problem.
5. @tsialex recommend me to test the memory with memtest86, after few hours result is success with no memory issue.
Im kinda at the edge, any of you guys experiencing this?