VRM modify ICC_MAX to run high TDC OEM cpu

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li16520

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Mar 5, 2025
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Thanks, it was successful to brush with this code
MCP2221a_iccmax_FF.exe -PXE1610C 74
MCP2221a_iccmax_FF.exe -PXE1610C 76
接线图.jpg
Is the wiring method shown in the Lenovo HR650X diagram correct? If it is incorrect, please help point out the correct wiring method. Thank you very much![ 联想 HR650X 上图所示的接线方法正确吗?如果不正确,请帮忙指出正确的接线方法,非常感谢! ]
 
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NablaSquaredG

Bringing 100G switches to homelabs
Aug 17, 2020
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Ah snap, I forgot to order the MCP2221A.. I only have EVKT-USBI2C-02 and REVELPROG-IS.
 

Tandada

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Mar 3, 2025
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@RolloZ170,Dear blogger, my motherboard (Intel S2600WF) has successfully lit up. Thank you for your patient guidance! I am glad to have learned your skills! I will have the opportunity to come into contact with more motherboards in the future,Thanks i
 
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NablaSquaredG

Bringing 100G switches to homelabs
Aug 17, 2020
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Can confirm a successful mod on X11DDW-NT using EVKT-USBI2C-02 and a special beta from @RolloZ170 ;) Thanks a lot!

8259CL running on X11DDW-NT and BIOS 4.4 like a charm.
 
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RolloZ170

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Apr 24, 2016
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Can confirm a successful mod on X11DDW-NT using EVKT-USBI2C-02 and a special beta from @RolloZ170 ;) Thanks a lot!
thank you for your help debugging it.
the CLI beta supports PXE1610C and TPS53678/TPS53679 (MP2955A not tested) with MPS EVKT-USBI2C-02 USB-I2C dongle.
if you need it PM me,
 
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hyperstriker

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Oct 22, 2020
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So it took me a while to get back to this.

X11SPW-TF and X11DDW-NT confirmed

X11SPW-TF was completely straight forward. Jvrm header was scl pin 1, sda pin 2, ground pin 3....
Hi @matkisson, sorry for the trouble, can you please show me where JVRM is on the X11SPW-TF?, and what will be the command? MCP2221a_iccmax_FF.exe -TPS53679 ?? , 58?

thanks...
 

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keen

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Apr 15, 2025
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Dell T640, R640, R740
VRM: PXE1610C
addresses 60, 62
I2C header P4
Pin[1] SCL
Pin(2) GND
Pin(3) SDA
View attachment 28822R640/R740View attachment 28823View attachment 28824T640View attachment 28825
without CPU, plug a PSU in the board and apply power, you can access the VRMs in standby mode.
i made a c# console app for automatic programming ( MCP2221a_iccmax_FF(10052024).7z ) vrm TPS53679/PXE1610C/MP2955A
Code:
open CMD window
MCP2221a_iccmax_FF.exe -PXE1610C 60
MCP2221a_iccmax_FF.exe -PXE1610C 62
Hi RolloZ170, After run Code:

MCP2221a_iccmax_FF.exe -PXE1610C 60
MCP2221a_iccmax_FF.exe -PXE1610C 62

The CMD command executed successfully, but the system still fails to boot after installing the CPUs (8275CL x2) and memory modules (Samsung DDR4 2666 32G x2). When pressing the power button, the fans spin at high speed briefly before becoming silent. Both the monitor and keyboard show no response.
Dell R640 , 750W power x2
Any guide? Thanks
 

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RolloZ170

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Apr 24, 2016
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The CMD command executed successfully, but the system still fails to boot after installing the CPUs (8275CL x2)
run the CMDs again to see if they are stored. you need BIOS with 2nd gen support.
if you have latest BIOS alrady, there may be a TDP block now (8275 = 240W)