Error: IASL status: 255 (Failed) on multi cpu E5-2620 system #429
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Earlier I found out that the script can run for a lower number of logical cores without seeing any errors, so I decided to turn off hyper threading in the bios and try the script for 12 logical cores: I've inserted this SSDT file. However somehow my system doesn't seem to make any difference by having a SSDT file or having none. AppleIntelInfo.kext gives the same results as can be seen below. I checked that all SSDT-generator related options in clover are disabled (except for Drop OEM) and the SSDT file seems to be loaded in the clover log file. State 25 is never reached. And again, multithreaded performance in Geek bench (v4), is with this throttling, somehow worse than it was with the maximum power state locked to 20... |
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The multithreaded performance is back to normal when I set the minimum allowed p-state in the bios (Pfloor) to x17. The throttling of AppleIntelCPUPowerManagement.kext is apparently cutting down the performance! I've run the ssdtPRGen.sh script again for 24 logical cores and fixed the uncompilable code wit MaciASL
After this I was able to compile the file to SSDT.aml Is this causing my problems? (This error is also there without SSDT) |
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The reason for this problem is that the motherboard DSDT is not standardized. sudo ./ssdtPRGen -a PR00 -b Mac-F60DEB81FF30ACF6 -cpus 2 -d 1 -f 2600 -lfm 1200 -l 32 -m MacPro6,1 -p 'E5-2670' -target 1 -turbo 3300 -t 115 -c 3 -x 0 I got about 5 frequencies through these operations. One problem is that the X86PlatformPlugin and X86PlatformShim are not loaded, is there a way to solve it? Another problem is that the CPU performance is not up to expectations, I guess the motherboard is too garbage? |
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Tenho uma placa dessa mais estou com dificuldade pois esta dando tela preta logo apos o logo .... possui a EFI dela ? |
Dear Pike R. and fellow SSDT'ers
problem:
I'm trying to get a proper SSDT for my dual Xeon E5-2620 V1 setup.
However the ssdtPRGen gives me the following error:
"Error: IASL status: 255 (Failed)"
the output of the script can be seen below;
I'm using SMBIOS MacPro6,1 and the error also exists if I'm using a sandy bridge model smbios with corresponding board-id (for example; Mac-4BC72D62AD45599E / Macmini5,2)
Somehow the script runs without errors when I lower the amount of logical cores to 12 (no error up to -l 16) but that would not suit the 2x6 cores with hyper-threading -> 24 logical cores.
What am I doing wrong?
I've added my ACPI folder and the output of ssdtPRGen -d
ACPI folder and ssdtPRGen -d output.zip
Interesting:
Somehow I can already get some P-states without using a SSDT or SSDT settings in Clover by using this patched AppleIntelCPUPowerManagement.kext from the multi cpu edition of http://www.rampagedev.com/downloads/
The turboboost throttles until x23 (should be x25 for this cpu)
Although single threaded performance raises this way from 1482 to 1732. (Geekbench v4) Multithreaded performance drops from 16979 to 14460. (Geekbench v4)
Edit; This multithreaded performance drop is due to (inefficient?) throttling of AppleIntelCPUPowerManagement.kext. Multithreaded performance (and power consumption) can be raised again by increasing the minimum P-level (PFloor) in the bios to x17.
How can this be?
More information about my total build can be found here
Thanks in advance!
Priegelaar
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