VRM modify ICC_MAX to run high TDC OEM cpu

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Grantedsundry

New Member
Feb 22, 2025
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ASRock C741 series supports ONLY E-Stepping ES/QS/PRD processors, same than supermicro/Tyan.
(maybe the BIOS of ASRockRack/Tyan can be modded,)
Currently ALL Gigabyte C741 boards support D0 stepping SPR-SP ES. if you update BIOS, don't update Intel ME.
View attachment 31879
Rollo, does this apply to all Mobos? I would like to update ME all the way to close some of the security flaws that have been found in it.
 

Grantedsundry

New Member
Feb 22, 2025
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I need help. I've read through all 6 pages about 10 times, but for the life of me can not figure out how to update my VRMs.
I've executed this with 1 CPU installed & without and with power on and off (still plugged in). I've also tried a bus scan (from 10 to 7F), but can never detect the VRMs. What am I doing wrong? Motherboard is a Supermicro X11DPU

MCP2221a_iccmax_FF.exe -PXE1610C 50
MCP2221a_iccmax_FF.exe -PXE1610C 52
I get this same error with a Lenovo P920. Booted to bios. Here’s how everything is connected.

 
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Grantedsundry

New Member
Feb 22, 2025
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Well would you look at that. It helps when I read the instructions from the top. I must say, it would help if the orientation of the photo of the Lenovo board matched the pinout of the Dell one.

All flashed. Thanks again.

For those curious, the DLL for the mcp2221a is available on Microchip’s site. The SHA2s match, but I replaced the one provided with theirs anyway. I also reversed the program with iLSpy but actually reviewing it is beyond me.
 

RolloZ170

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Apr 24, 2016
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I must say, it would help if the orientation of the photo of the Lenovo board matched the pinout of the Dell one.
there is "Dell T7920 Motherboard" in big friendly letters in the picture.
##################################################################
and a block splitter between #############################################
##################################################################
the pinout matches. but reversed order, just look the square pad pin is always "1".
 

Tandada

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Mar 3, 2025
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-S2600WF
Dear Author, I am having trouble, could you please guide me?
I cannot determine if the connection to "i2c" is successful.
Also, I don't get any response when I use your automated program, the program closes itself after pressing any key.
Finally, there are two mcp2221a programs, which one should I use? Where should I press for testing?
I need your help.Thanks!QQ20250308-035718.pngQQ20250308-035732.pngQQ20250308-041440.png
 

RolloZ170

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Apr 24, 2016
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Also, I don't get any response when I use your automated program, the program closes itself after pressing any key.
it a CLI programm. CLI = command line interface
readme.txt
Code:
usage examples:
MCP2221a_iccmax_FF.exe -TPS53679 58        REM X11SPi/X11DPL/X11DPH first
MCP2221a_iccmax_FF.exe -TPS53679 60        REM X11DPL/X11DPH second
MCP2221a_iccmax_FF.exe -TPS53679 58 60        REM X11DPL/X11DPH first second

MCP2221a_iccmax_FF.exe -MP2955A 20        REM X11SPM/X11DPi first
MCP2221a_iccmax_FF.exe -MP2955A 21        REM X11DPi second
MCP2221a_iccmax_FF.exe -MP2955A 20 21        REM X11DPi first second

MCP2221a_iccmax_FF.exe -PXE1610C 28        REM S2600WF first
MCP2221a_iccmax_FF.exe -PXE1610C 30        REM S2600BP first
MCP2221a_iccmax_FF.exe -PXE1610C 38        REM S2600BP/S2600WF second
MCP2221a_iccmax_FF.exe -PXE1610C 60        REM Dell 7820/7920 first
MCP2221a_iccmax_FF.exe -PXE1610C 62        REM Dell 7820/7920 second
MCP2221a_iccmax_FF.exe -PXE1610C 50 52        REM X11DPU first second

MCP2221a_iccmax_FF.exe -scan 20 70        REM scan from addr 20 to 70
Note: REM = remark, skip this
 

Tandada

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Mar 3, 2025
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I'm very sorry, I'm getting an error when I open the document with the MCP2221 software, is it possible that I've filled in the wrong content of the document? Can you guide me a bit more? Thank you.
QQ20250308-050328.png
 

RolloZ170

Well-Known Member
Apr 24, 2016
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I'm very sorry, I'm getting an error when I open the document with the MCP2221 software, is it possible that I've filled in the wrong content of the document? Can you guide me a bit more? Thank you.
OMG
you should read the readme.txt 阅读我
1) open cmd window
enter "MCP2221a_iccmax_FF.exe -scan 20 70" without quotes....
and press return.
zw_03-07-2025_01.jpg
 
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