Random reboot Catalina if left idle, any ideas?

If I leave it (i.e go away to make a coffee) come back rebooted - was rock steady before... but I've been trying OpenCore - current boot manager is clover 5103

any insight with log below.

only changes from 5092>5101>5103 - to think reboots started at 5102 (I tried it and went back to 5101....maybe I should rollback?

opencore has been test on usb booting only

LOG:

panic(cpu 0 caller 0xffffff801a66520a): Kernel trap at 0xffffff7f9ba41adf, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0x0000000000000040, CR3: 0x000000074be8b12d, CR4: 0x00000000003626e0

RAX: 0xffffff83661ec260, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0xffffff83661ec260

RSP: 0xffffff83e5c83870, RBP: 0xffffff83e5c838b0, RSI: 0xffffff806ae50e00, RDI: 0x0000000000000000

R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0xffffff7f9b95c104, R11: 0xffffff807548ee0c

R12: 0xffffff801b01cae8, R13: 0xffffff806ae50e00, R14: 0xffffff806ae50000, R15: 0x0000000000000000

RFL: 0x0000000000010282, RIP: 0xffffff7f9ba41adf, CS: 0x0000000000000008, SS: 0x0000000000000010

Fault CR2: 0x0000000000000040, Error code: 0x0000000000000000, Fault CPU: 0x0, PL: 0, VF: 0

Backtrace (CPU 0), Frame : Return Address

0xffffff83e5c832d0 : 0xffffff801a53bb1b

0xffffff83e5c83320 : 0xffffff801a6733e5

0xffffff83e5c83360 : 0xffffff801a664e5e

0xffffff83e5c833b0 : 0xffffff801a4e2a40

0xffffff83e5c833d0 : 0xffffff801a53b207

0xffffff83e5c834d0 : 0xffffff801a53b5eb

0xffffff83e5c83520 : 0xffffff801acd24f9

0xffffff83e5c83590 : 0xffffff801a66520a

0xffffff83e5c83710 : 0xffffff801a664f08

0xffffff83e5c83760 : 0xffffff801a4e2a40

0xffffff83e5c83780 : 0xffffff7f9ba41adf

0xffffff83e5c838b0 : 0xffffff7f9ba526d0

0xffffff83e5c839d0 : 0xffffff7f9b95f02e

0xffffff83e5c83a10 : 0xffffff7f9b95f561

0xffffff83e5c83a40 : 0xffffff7f9b95cadb

0xffffff83e5c83ac0 : 0xffffff801ac68ea0

0xffffff83e5c83b10 : 0xffffff801ac67121

0xffffff83e5c83b60 : 0xffffff801ac70083

0xffffff83e5c83ca0 : 0xffffff801a622c22

0xffffff83e5c83db0 : 0xffffff801a541998

0xffffff83e5c83e10 : 0xffffff801a518625

0xffffff83e5c83e70 : 0xffffff801a52f0d5

0xffffff83e5c83f00 : 0xffffff801a64b485

0xffffff83e5c83fa0 : 0xffffff801a4e3226

Kernel Extensions in backtrace:

com.apple.iokit.IOAcceleratorFamily2(438.2.8)[9176E894-E24A-36BA-AFDA-0DB11F3F512A]@0xffffff7f9b956000->0xffffff7f9ba19fff

dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[2FAEE793-59BC-3ADF-A5E2-3BC8760AFE0B]@0xffffff7f9b592000

dependency: com.apple.iokit.IOPCIFamily(2.9)[1286D5E5-A6A1-3C44-A244-04C068903DB2]@0xffffff7f9af2f000

dependency: com.apple.iokit.IOSurface(269.6)[640503DC-6033-3EF6-85F4-F48282EF48DD]@0xffffff7f9b925000

dependency: com.apple.iokit.IOGraphicsFamily(569.3)[7B5CA52B-0BD1-34AB-BFC9-7D5C3A0DBE7C]@0xffffff7f9b8c6000

dependency: com.apple.iokit.IOReportFamily(47)[E3C37E96-3AFA-301F-B89C-719FB3D4DA53]@0xffffff7f9b2c8000

com.apple.kext.AMDRadeonX6000(3.0.4)[7C946094-8767-3E64-9AB8-CE0D460F9A02]@0xffffff7f9ba2e000->0xffffff7f9bc32fff

dependency: com.apple.iokit.IOPCIFamily(2.9)[1286D5E5-A6A1-3C44-A244-04C068903DB2]@0xffffff7f9af2f000

dependency: com.apple.iokit.IOSurface(269.6)[640503DC-6033-3EF6-85F4-F48282EF48DD]@0xffffff7f9b925000

dependency: com.apple.iokit.IOGraphicsFamily(569.3)[7B5CA52B-0BD1-34AB-BFC9-7D5C3A0DBE7C]@0xffffff7f9b8c6000

dependency: com.apple.iokit.IOAcceleratorFamily2(438.2.8)[9176E894-E24A-36BA-AFDA-0DB11F3F512A]@0xffffff7f9b956000

BSD process name corresponding to current thread: VTDecoderXPCServ

Boot args: agdpmod=pikera

Mac OS version:

19C57

Kernel version:

Darwin Kernel Version 19.2.0: Sat Nov 9 03:47:04 PST 2019; root:xnu-6153.61.1~20/RELEASE_X86_64

Kernel UUID: C3E7E405-C692-356B-88D3-C30041FD1E72

Kernel slide: 0x000000001a200000

Kernel text base: 0xffffff801a400000

__HIB text base: 0xffffff801a300000

System model name: iMacPro1,1 (Mac-7BA5B2D9E42DDD94)

System shutdown begun: NO

Panic diags file available: YES (0x0)

System uptime in nanoseconds: 1387710515653

last loaded kext at 566697471260: >!AXsanScheme 3 (addr 0xffffff7fa162b000, size 32768)

last unloaded kext at 677863784369: >usb.cdc 5.0.0 (addr 0xffffff7fa15b3000, size 28672)

loaded kexts:

submitted by /u/SlackHacky
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