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iM 4,1-14,4 2011 iMac Graphics Card Upgrade

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The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
Went ahead and did the upgrade to 0.4.10 and Monterey 12.5.
1. Ran into trouble.
2. Got the loop error.
3. Couldn't get back into OS.
4. Went to Mr Macintosh videos and reviewed some issues with metal upgrades.
5. Got the idea to boot-up in safe mode (held down shift key at start-up)
6. Opened 0.4.10 in safe mode
7. Went to Developer settings/Set GPU model for MXM Mac/clicked drop down menu for Kepler
8. Ran post install patches
9. Rebooted system
10. Ran OCLP 0.4.10, built and installed open core with new settings.
11. It's Working!

Pretty stable all day. Thank you Mr. Macintosh for the idea to boot up in safe mode.
 
Last edited:
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Hi All,
Below is my spec, after update I will have few kernel report with auto restart daily.
Does anyone have the same problem as mine?

May I know how to solve this issue?

panic(cpu 2 caller 0xffffff802f7c3646): Kernel trap at 0xffffff7fca27dcb4, type 6=invalid opcode, registers:
CR0: 0x0000000080010033, CR2: 0x0000000144a21010, CR3: 0x00000007ec46c019, CR4: 0x00000000000626e0
RAX: 0x00000000ff0b0b0b, RBX: 0xffffff93980a2480, RCX: 0x0000000000000240, RDX: 0x0000000000000240
RSP: 0xffffffc133fb3a18, RBP: 0xffffffc133fb3a40, RSI: 0x0000000000000240, RDI: 0xffffff93980a2480
R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0xffffffe54556c350, R11: 0x0000000f93980a20
R12: 0xffffff9398d3fc00, R13: 0x0000000000000000, R14: 0xffffff939968c000, R15: 0x00000000e00002d5
RFL: 0x0000000000010202, RIP: 0xffffff7fca27dcb4, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000144a21010, Error code: 0x0000000000000000, Fault CPU: 0x2, PL: 0, VF: 0

Backtrace (CPU 2), Frame : Return Address
0xffffffc133fb3430 : 0xffffff802f68b26d mach_kernel : _handle_debugger_trap + 0x3fd
0xffffffc133fb3480 : 0xffffff802f7d2c83 mach_kernel : _kdp_i386_trap + 0x143
0xffffffc133fb34c0 : 0xffffff802f7c327a mach_kernel : _kernel_trap + 0x55a
0xffffffc133fb3510 : 0xffffff802f62fa2f mach_kernel : _return_from_trap + 0xff
0xffffffc133fb3530 : 0xffffff802f68aa8d mach_kernel : _DebuggerTrapWithState + 0xad
0xffffffc133fb3650 : 0xffffff802f68ad83 mach_kernel : _panic_trap_to_debugger + 0x273
0xffffffc133fb36c0 : 0xffffff802fe9c9fa mach_kernel : _panic + 0x54
0xffffffc133fb3730 : 0xffffff802f7c3646 mach_kernel : _sync_iss_to_iks + 0x2c6
0xffffffc133fb38b0 : 0xffffff802f7c332d mach_kernel : _kernel_trap + 0x60d
0xffffffc133fb3900 : 0xffffff802f62fa2f mach_kernel : _return_from_trap + 0xff
0xffffffc133fb3920 : 0xffffff7fca27dcb4 com.apple.GeForce : __ZN24nvDisplayPipeTransactionC1Ev + 0xe
0xffffffc133fb3a40 : 0xffffff7fca407ce9 com.apple.iokit.IOAcceleratorFamily2 : __ZN18IOAccelDisplayPipe17transaction_beginEP29IOAccelDisplayPipeUserClient2Pj + 0x23
0xffffffc133fb3a70 : 0xffffff7fca40d76f com.apple.iokit.IOAcceleratorFamily2 : __ZN29IOAccelDisplayPipeUserClient216transactionBeginEPj + 0x81
0xffffffc133fb3aa0 : 0xffffff7fca40c862 com.apple.iokit.IOAcceleratorFamily2 : __ZN29IOAccelDisplayPipeUserClient219s_transaction_beginEPS_PvP25IOExternalMethodArguments + 0x20
0xffffffc133fb3ad0 : 0xffffff802fe1d2ae mach_kernel : __ZN12IOUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x1de
0xffffffc133fb3b20 : 0xffffff802fe2755b mach_kernel : _is_io_connect_method + 0x35b
0xffffffc133fb3c80 : 0xffffff802f77e4c1 mach_kernel : _iokit_server_routine + 0x4dd1
0xffffffc133fb3d90 : 0xffffff802f6908ed mach_kernel : _ipc_kobject_server + 0x2fd
0xffffffc133fb3e00 : 0xffffff802f666c35 mach_kernel : _ipc_kmsg_send + 0x115
0xffffffc133fb3e60 : 0xffffff802f67e3e2 mach_kernel : _mach_msg_overwrite_trap + 0x2d2
0xffffffc133fb3ef0 : 0xffffff802f7a734d mach_kernel : _mach_call_munger64 + 0x29d
0xffffffc133fb3fa0 : 0xffffff802f630216 mach_kernel : _hndl_mach_scall64 + 0x16
Kernel Extensions in backtrace:
com.apple.iokit.IOAcceleratorFamily2(442.9)[1F934041-461D-3D8C-9DDE-D75CA2224A23]@0xffffff7fca3bd000->0xffffff7fca427fff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[FA0E04C0-590D-37BC-B40A-EC1F2679C9BC]@0xffffff8030cc0000->0xffffff8030cd5fff
dependency: com.apple.iokit.IOGraphicsFamily(585.2)[0AB638A1-9A98-355F-8BA9-8637ADA22B75]@0xffffff7fca53f000->0xffffff7fca56dfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[F30CC8C7-8774-3C0D-9BD5-D53197032A97]@0xffffff803216c000->0xffffff8032194fff
dependency: com.apple.iokit.IOReportFamily(47)[057AB407-BE47-38A2-85D6-64B5F5B20829]@0xffffff80321a3000->0xffffff80321a5fff
dependency: com.apple.iokit.IOSurface(290.8.1)[26D89974-8ABB-32F9-9EC4-9766EF5D4B79]@0xffffff8032296000->0xffffff80322b2fff
com.apple.GeForce(16.0)[38112557-95B5-38F6-A805-BD330448E15B]@0xffffff7fca258000->0xffffff7fca2cefff
dependency: com.apple.iokit.IOAcceleratorFamily2(442.9)[1F934041-461D-3D8C-9DDE-D75CA2224A23]@0xffffff7fca3bd000->0xffffff7fca427fff
dependency: com.apple.iokit.IOGraphicsFamily(585.2)[0AB638A1-9A98-355F-8BA9-8637ADA22B75]@0xffffff7fca53f000->0xffffff7fca56dfff
dependency: com.apple.iokit.IONDRVSupport(585.2)[F00A46D3-EE11-3F20-A627-2A4CBC388E0D]@0xffffff7fca584000->0xffffff7fca58cfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[F30CC8C7-8774-3C0D-9BD5-D53197032A97]@0xffffff803216c000->0xffffff8032194fff
dependency: com.apple.iokit.IOSurface(290.8.1)[26D89974-8ABB-32F9-9EC4-9766EF5D4B79]@0xffffff8032296000->0xffffff80322b2fff
dependency: com.apple.nvidia.driver.NVDAResman(16.0.0)[879FE28C-BC88-3553-B3C7-1CCFAE357D45]@0xffffff7fcaa1a000->0xffffff7fcac93fff

Process name corresponding to current thread: WindowServer
Boot args: keepsyms=1 debug=0x100 -disable_sidecar_mac -lilubetaall ipc_control_port_options=0 -revasset

Mac OS version:
20G730

Kernel version:
Darwin Kernel Version 20.6.0: Tue Jun 21 20:50:28 PDT 2022; root:xnu-7195.141.32~1/RELEASE_X86_64
Kernel UUID: EF7C73B8-EDF8-3EDC-ACD0-1D18C771C96D
KernelCache slide: 0x000000002f400000
KernelCache base: 0xffffff802f600000
Kernel slide: 0x000000002f410000
Kernel text base: 0xffffff802f610000
__HIB text base: 0xffffff802f500000
System model name: iMac12,2 (Mac-942B59F58194171B)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 7266465235701
Last Sleep: absolute base_tsc base_nano
Uptime : 0x0000069bdb144bd6
Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000
Wake : 0x0000000000000000 0x00000016d4578388 0x0000000000000000



Screenshot 2022-08-08 at 9.09.36 PM.png
 
Hi good morning everybody ! Im trying to update the GPU of a mid 2010 a1311 iMac using a nvidia Quadro K1000m bought from eBay second hand i think is pulled from a DELL laptop, im trying to flash the Bios but the chip is only 128k and the two BIOS bin files avilable on the forum are 256k , , do i need to replace the bios chip with brand new 256k or what =?
 
LRSERVICIOS said:
Hi good morning everybody ! Im trying to update the GPU of a mid 2010 a1311 iMac using a nvidia Quadro K1000m bought from eBay second hand i think is pulled from a DELL laptop, im trying to flash the Bios but the chip is only 128k and the two BIOS bin files avilable on the forum are 256k , , do i need to replace the bios chip with brand new 256k or what =?
Click to expand...
K1000m or K1100m? Can you put some pictures of it?
 
CY Yong said:
Hi All,
Below is my spec, after update I will have few kernel report with auto restart daily.
Does anyone have the same problem as mine?

May I know how to solve this issue?

panic(cpu 2 caller 0xffffff802f7c3646): Kernel trap at 0xffffff7fca27dcb4, type 6=invalid opcode, registers:
CR0: 0x0000000080010033, CR2: 0x0000000144a21010, CR3: 0x00000007ec46c019, CR4: 0x00000000000626e0
RAX: 0x00000000ff0b0b0b, RBX: 0xffffff93980a2480, RCX: 0x0000000000000240, RDX: 0x0000000000000240
RSP: 0xffffffc133fb3a18, RBP: 0xffffffc133fb3a40, RSI: 0x0000000000000240, RDI: 0xffffff93980a2480
R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0xffffffe54556c350, R11: 0x0000000f93980a20
R12: 0xffffff9398d3fc00, R13: 0x0000000000000000, R14: 0xffffff939968c000, R15: 0x00000000e00002d5
RFL: 0x0000000000010202, RIP: 0xffffff7fca27dcb4, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000144a21010, Error code: 0x0000000000000000, Fault CPU: 0x2, PL: 0, VF: 0

Backtrace (CPU 2), Frame : Return Address
0xffffffc133fb3430 : 0xffffff802f68b26d mach_kernel : _handle_debugger_trap + 0x3fd
0xffffffc133fb3480 : 0xffffff802f7d2c83 mach_kernel : _kdp_i386_trap + 0x143
0xffffffc133fb34c0 : 0xffffff802f7c327a mach_kernel : _kernel_trap + 0x55a
0xffffffc133fb3510 : 0xffffff802f62fa2f mach_kernel : _return_from_trap + 0xff
0xffffffc133fb3530 : 0xffffff802f68aa8d mach_kernel : _DebuggerTrapWithState + 0xad
0xffffffc133fb3650 : 0xffffff802f68ad83 mach_kernel : _panic_trap_to_debugger + 0x273
0xffffffc133fb36c0 : 0xffffff802fe9c9fa mach_kernel : _panic + 0x54
0xffffffc133fb3730 : 0xffffff802f7c3646 mach_kernel : _sync_iss_to_iks + 0x2c6
0xffffffc133fb38b0 : 0xffffff802f7c332d mach_kernel : _kernel_trap + 0x60d
0xffffffc133fb3900 : 0xffffff802f62fa2f mach_kernel : _return_from_trap + 0xff
0xffffffc133fb3920 : 0xffffff7fca27dcb4 com.apple.GeForce : __ZN24nvDisplayPipeTransactionC1Ev + 0xe
0xffffffc133fb3a40 : 0xffffff7fca407ce9 com.apple.iokit.IOAcceleratorFamily2 : __ZN18IOAccelDisplayPipe17transaction_beginEP29IOAccelDisplayPipeUserClient2Pj + 0x23
0xffffffc133fb3a70 : 0xffffff7fca40d76f com.apple.iokit.IOAcceleratorFamily2 : __ZN29IOAccelDisplayPipeUserClient216transactionBeginEPj + 0x81
0xffffffc133fb3aa0 : 0xffffff7fca40c862 com.apple.iokit.IOAcceleratorFamily2 : __ZN29IOAccelDisplayPipeUserClient219s_transaction_beginEPS_PvP25IOExternalMethodArguments + 0x20
0xffffffc133fb3ad0 : 0xffffff802fe1d2ae mach_kernel : __ZN12IOUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x1de
0xffffffc133fb3b20 : 0xffffff802fe2755b mach_kernel : _is_io_connect_method + 0x35b
0xffffffc133fb3c80 : 0xffffff802f77e4c1 mach_kernel : _iokit_server_routine + 0x4dd1
0xffffffc133fb3d90 : 0xffffff802f6908ed mach_kernel : _ipc_kobject_server + 0x2fd
0xffffffc133fb3e00 : 0xffffff802f666c35 mach_kernel : _ipc_kmsg_send + 0x115
0xffffffc133fb3e60 : 0xffffff802f67e3e2 mach_kernel : _mach_msg_overwrite_trap + 0x2d2
0xffffffc133fb3ef0 : 0xffffff802f7a734d mach_kernel : _mach_call_munger64 + 0x29d
0xffffffc133fb3fa0 : 0xffffff802f630216 mach_kernel : _hndl_mach_scall64 + 0x16
Kernel Extensions in backtrace:
com.apple.iokit.IOAcceleratorFamily2(442.9)[1F934041-461D-3D8C-9DDE-D75CA2224A23]@0xffffff7fca3bd000->0xffffff7fca427fff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[FA0E04C0-590D-37BC-B40A-EC1F2679C9BC]@0xffffff8030cc0000->0xffffff8030cd5fff
dependency: com.apple.iokit.IOGraphicsFamily(585.2)[0AB638A1-9A98-355F-8BA9-8637ADA22B75]@0xffffff7fca53f000->0xffffff7fca56dfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[F30CC8C7-8774-3C0D-9BD5-D53197032A97]@0xffffff803216c000->0xffffff8032194fff
dependency: com.apple.iokit.IOReportFamily(47)[057AB407-BE47-38A2-85D6-64B5F5B20829]@0xffffff80321a3000->0xffffff80321a5fff
dependency: com.apple.iokit.IOSurface(290.8.1)[26D89974-8ABB-32F9-9EC4-9766EF5D4B79]@0xffffff8032296000->0xffffff80322b2fff
com.apple.GeForce(16.0)[38112557-95B5-38F6-A805-BD330448E15B]@0xffffff7fca258000->0xffffff7fca2cefff
dependency: com.apple.iokit.IOAcceleratorFamily2(442.9)[1F934041-461D-3D8C-9DDE-D75CA2224A23]@0xffffff7fca3bd000->0xffffff7fca427fff
dependency: com.apple.iokit.IOGraphicsFamily(585.2)[0AB638A1-9A98-355F-8BA9-8637ADA22B75]@0xffffff7fca53f000->0xffffff7fca56dfff
dependency: com.apple.iokit.IONDRVSupport(585.2)[F00A46D3-EE11-3F20-A627-2A4CBC388E0D]@0xffffff7fca584000->0xffffff7fca58cfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[F30CC8C7-8774-3C0D-9BD5-D53197032A97]@0xffffff803216c000->0xffffff8032194fff
dependency: com.apple.iokit.IOSurface(290.8.1)[26D89974-8ABB-32F9-9EC4-9766EF5D4B79]@0xffffff8032296000->0xffffff80322b2fff
dependency: com.apple.nvidia.driver.NVDAResman(16.0.0)[879FE28C-BC88-3553-B3C7-1CCFAE357D45]@0xffffff7fcaa1a000->0xffffff7fcac93fff

Process name corresponding to current thread: WindowServer
Boot args: keepsyms=1 debug=0x100 -disable_sidecar_mac -lilubetaall ipc_control_port_options=0 -revasset

Mac OS version:
20G730

Kernel version:
Darwin Kernel Version 20.6.0: Tue Jun 21 20:50:28 PDT 2022; root:xnu-7195.141.32~1/RELEASE_X86_64
Kernel UUID: EF7C73B8-EDF8-3EDC-ACD0-1D18C771C96D
KernelCache slide: 0x000000002f400000
KernelCache base: 0xffffff802f600000
Kernel slide: 0x000000002f410000
Kernel text base: 0xffffff802f610000
__HIB text base: 0xffffff802f500000
System model name: iMac12,2 (Mac-942B59F58194171B)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 7266465235701
Last Sleep: absolute base_tsc base_nano
Uptime : 0x0000069bdb144bd6
Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000
Wake : 0x0000000000000000 0x00000016d4578388 0x0000000000000000



View attachment 2040398
Click to expand...
Try Sleep only for Display in settings. I could never get sleep fully working on my 12.2 with an Nvidia card.
 
That is not a k1000m, it is a 1000m, they are different. That has a 128kb bios chip, the k1000m it is more, regular bios are more or less 150/160kb, witch needs a different chip.
 
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hey I cannot get into root for some reason with ip and tried 3 different flash drives
waited several minutes before attempting to login to root to flash

port22: Operation timed out...
 
Last edited:
incr3d1ble said:
hey I cannot get into root for some reason with ip and tried 3 different flash drives
waited several minutes before attempting to login to root to flash

port22: Operation timed out...
Click to expand...
There are lots of variables that could be making this tricky, almost all of which likely have to do with the configuration and use of your own local network.

I often find that the best way to figure things like this out is to rule out as many variables for failure as possible until you know what isn't working. You'll need to confirm the flash drive works, that your SSH abilities are sound, and that each and every piece of equipment you are using to do the SSH'ing works too.

If this is your first time using SSH, I would recommend reading up on it, and practicing connecting to another computer that is known to be more functional (not the iMac missing a GPU.)

How did you find the IP address of the iMac? This error indicates that the iMac is effectively unreachable through your local internet connection. Ensure that the computer you are using and the iMac is plugged into the same router, not different devices (such as one into the modem and the other into the router.) I recommend that you avoid using Wifi by all means possible to make things simpler. To discover IP addresses, I highly recommend the app Fing.

If you can't get SSH to work, you could also try flashing the ROM of the GPU with a physical programmer such as the CH314A described in the documentation. You'll need to be somewhat comfortable using the command line either way.

Also, if you need to verify the flash drive works, try plugging it into another (known good) computer (this doesn't even need to be a mac) and booting from it. While it is possible that the drives themselves are not functional, it's also possible that they aren't being used correctly for one reason or another, thus resulting in the issues you are having.
 
I have the CH314A but not sure where the documentation is on how to do its tried
davidg5678 said:
There are lots of variables that could be making this tricky, almost all of which likely have to do with the configuration and use of your own local network.

I often find that the best way to figure things like this out is to rule out as many variables for failure as possible until you know what isn't working. You'll need to confirm the flash drive works, that your SSH abilities are sound, and that each and every piece of equipment you are using to do the SSH'ing works too.

If this is your first time using SSH, I would recommend reading up on it, and practicing connecting to another computer that is known to be more functional (not the iMac missing a GPU.)

How did you find the IP address of the iMac? This error indicates that the iMac is effectively unreachable through your local internet connection. Ensure that the computer you are using and the iMac is plugged into the same router, not different devices (such as one into the modem and the other into the router.) I recommend that you avoid using Wifi by all means possible to make things simpler. To discover IP addresses, I highly recommend the app Fing.

If you can't get SSH to work, you could also try flashing the ROM of the GPU with a physical programmer such as the CH314A described in the documentation. You'll need to be somewhat comfortable using the command line either way.

Also, if you need to verify the flash drive works, try plugging it into another (known good) computer (this doesn't even need to be a mac) and booting from it. While it is possible that the drives themselves are not functional, it's also possible that they aren't being used correctly for one reason or another, thus resulting in the issues you are having.
Click to expand...
I have the CH314A and I tried looking for the documentation but couldn't find it. can you please point me in the right direction ?
 
incr3d1ble said:
I have the CH314A but not sure where the documentation is on how to do its tried

I have the CH314A and I tried looking for the documentation but couldn't find it. can you please point me in the right direction ?
Click to expand...

It was hidden in post #1. Took me 2 minutes to get to the detailed post by [B]Ausdauersportler[/B]


How to use the CH341a Programmer from Windows (instructables)
www.instructables.com

CH341A/CH347 Programmer

CH341A/CH347 Programmer: I recently have purchased a CH341A mini programmer. The mini programmer is OK and can by used to program 24 and 24 series chips. It is very low cost but quite useful as I can use it to flash my computer BIOS and router firmware. WCH has kindly relea…
www.instructables.com www.instructables.com

How to use it from your Mac computer (by [B]Ausdauersportler[/B])
 
incr3d1ble said:
I have the CH314A but not sure where the documentation is on how to do its tried

I have the CH314A and I tried looking for the documentation but couldn't find it. can you please point me in the right direction ?
Click to expand...
You can also create a usb flash drive with “Windows to go” (using rufus) and after that boot into Windows and use amdflash or nvidiaflash. Some cards have bios chip that cannot be flashed with ch314A (like quadro k3100m or k4100m).
 
Last edited:
Jforte said:
That is not a k1000m, it is a 1000m, they are different. That has a 128kb bios chip, the k1000m it is more, regular bios are more or less 150/160kb, witch needs a different chip.
Click to expand...
Can i just put a 256k chip with the k1000m firmware ??
 
georgeimac said:
Went ahead and did the upgrade to 0.4.10 and Monterey 12.5.
1. Ran into trouble.
2. Got the loop error.
3. Couldn't get back into OS.
4. Went to Mr Macintosh videos and reviewed some issues with metal upgrades.
5. Got the idea to boot-up in safe mode (held down shift key at start-up)
6. Opened 0.4.10 in safe mode
7. Went to Developer settings/Set GPU model for MXM Mac/clicked drop down menu for Kepler
8. Ran post install patches
9. Rebooted system
10. Ran OCLP 0.4.10, built and installed open core with new settings.
11. It's Working!

Pretty stable all day. Thank you Mr. Macintosh for the idea to boot up in safe mode.
Click to expand...
Same problem as yours. However, I can't get into safe mode. Using an iMac 27 Mid 2011 - GTX770M.

What am I doing wrong?
 
Ausdauersportler said:
Check the OCLP online documentation section Monterey Support->Kepler …not so hard to find.
Click to expand...
Despite not mentioning iMac 12.1, I did the procedure to enter safe mode using the Shift key. I couldn't get out of loop mode. I've been trying for over 3 days without success.
 
Borak said:
Despite not mentioning iMac 12.1, I did the procedure to enter safe mode using the Shift key. I couldn't get out of loop mode. I've been trying for over 3 days without success.
Click to expand...
Safe mode boot works perfectly on all of my (OCLP) managed systems (used it several times during vBIOS development and debugging). You need to press the shift key while the OpenCore boot picker is visible when selecting your Monterey installation, not while pressing the EFI picker.

Currently the only workaround is to install the patches in safe mode, by holding down Shift+Enter when you select macOS in the OCLP boot picker.
 
Finally, I got my first iMac (see signature) up in Monterey 12.5! I have to thank you all for making this possible!

It was a long and windy road, with extra trouble installing Monterey since I got the "Forbidden" sign from Apple installer when trying to install using OCLP recipe (starting from a working High Sierra).

I stumbled upon a solution to get around this, via first installing Catalina using dosdude1 USB using HD5670 GPU, then changing GPU to M6100 and booting from my OC rescue CD, and finally doing a normal "Software Update" from the About this Mac window in Catalina. When this installer rebooted, and eventually ended in a black screen, I replaced the M6100 with the original HD5670 and let the installer continue until finished. Then I swapped back to my M6100 GPU again, and ran the Post-Install patches. This was not a very scientific procedure, to say the least, so don't try this at home, kids! I have a second iMac with the same spec, and it will be interesting to see if the upgrade procedure turns out the same..

My first upgraded iMac seems to work nicely, it has been running for 2 days with even brightness control and sleep mode OK etc.



Screenshot 2022-08-10 at 11.50.02.png
 
Last edited:
curioussurfer said:
Yes, just untick "Prevent computer from sleeping...." You can then set the the display sleeping via slider
Click to expand...
I had untick already, but it's still restart during I work on email, powerpoint and excel.
Do you have this issue before?

panic(cpu 0 caller 0xffffff80249a1a84): "Possible memory corruption: pmap_pv_remove(0xffffff86c2836040,0x7fff80bd6000,0x14000, 0x10000014000000, 0xffffffc128ebb654, 0xffffffc128ebb620): null pv_list, priors: 1"@/System/Volumes/Data/SWE/macOS/BuildRoots/d86ba9a80c/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.141.32/osfmk/i386/pmap_internal.h:903


Backtrace (CPU 0), Frame : Return Address


0xffffffc128ebb250 : 0xffffff802488b26d mach_kernel : _handle_debugger_trap + 0x3fd


0xffffffc128ebb2a0 : 0xffffff80249d2c83 mach_kernel : _kdp_i386_trap + 0x143


0xffffffc128ebb2e0 : 0xffffff80249c327a mach_kernel : _kernel_trap + 0x55a


0xffffffc128ebb330 : 0xffffff802482fa2f mach_kernel : _return_from_trap + 0xff


0xffffffc128ebb350 : 0xffffff802488aa8d mach_kernel : _DebuggerTrapWithState + 0xad


0xffffffc128ebb470 : 0xffffff802488ad83 mach_kernel : _panic_trap_to_debugger + 0x273


0xffffffc128ebb4e0 : 0xffffff802509c9fa mach_kernel : _panic + 0x54


0xffffffc128ebb550 : 0xffffff80249a1a84 mach_kernel : _pmap_enter_options + 0x1e14


0xffffffc128ebb680 : 0xffffff8024921afb mach_kernel : _vm_fault_enter + 0x16ab


0xffffffc128ebb700 : 0xffffff802492056c mach_kernel : _vm_fault_enter + 0x11c


0xffffffc128ebb780 : 0xffffff80249242ba mach_kernel : _vm_pre_fault + 0x217a


0xffffffc128ebba10 : 0xffffff80249c2f9b mach_kernel : _kernel_trap + 0x27b


0xffffffc128ebba80 : 0xffffff802482fa2f mach_kernel : _return_from_trap + 0xff


0xffffffc128ebbaa0 : 0xffffff802482edeb mach_kernel : __bcopy + 0xb


0xffffffc128ebbc10 : 0xffffff802492a25a mach_kernel : _copyinmap + 0x8a


0xffffffc128ebbc50 : 0xffffff802493bd29 mach_kernel : _vm_map_copyin_internal + 0xe09


0xffffffc128ebbd50 : 0xffffff80248fb072 mach_kernel : _mach_vm_server_routine + 0x4c2


0xffffffc128ebbd90 : 0xffffff80248908ed mach_kernel : _ipc_kobject_server + 0x2fd


0xffffffc128ebbe00 : 0xffffff8024866c35 mach_kernel : _ipc_kmsg_send + 0x115


0xffffffc128ebbe60 : 0xffffff802487e3e2 mach_kernel : _mach_msg_overwrite_trap + 0x2d2


0xffffffc128ebbef0 : 0xffffff80249a734d mach_kernel : _mach_call_munger64 + 0x29d


0xffffffc128ebbfa0 : 0xffffff8024830216 mach_kernel : _hndl_mach_scall64 + 0x16





Process name corresponding to current thread: ReportCrash


Boot args: keepsyms=1 debug=0x100 -disable_sidecar_mac -lilubetaall ipc_control_port_options=0 -revasset





Mac OS version:


20G730





Kernel version:


Darwin Kernel Version 20.6.0: Tue Jun 21 20:50:28 PDT 2022; root:xnu-7195.141.32~1/RELEASE_X86_64


Kernel UUID: EF7C73B8-EDF8-3EDC-ACD0-1D18C771C96D


KernelCache slide: 0x0000000024600000


KernelCache base: 0xffffff8024800000


Kernel slide: 0x0000000024610000


Kernel text base: 0xffffff8024810000


__HIB text base: 0xffffff8024700000


System model name: iMac12,2 (Mac-942B59F58194171B)


System shutdown begun: NO


Panic diags file available: YES (0x0)


Hibernation exit count: 0





System uptime in nanoseconds: 994532239733


Last Sleep: absolute base_tsc base_nano


Uptime : 0x000000e78ebdb235


Sleep : 0x0000000000000000 0x0000000000000000 0x0000000000000000


Wake : 0x0000000000000000 0x0000000de734db94 0x0000000000000000
 
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