VRM modify ICC_MAX to run high TDC OEM cpu

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Dww0311

Member
May 19, 2017
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Successfully modified DL360 Gen 10 using Adafruit MCP2221a and Rollo's exe. The VRMs proved to be TPS53678's instead of PXE1610C's. Addresses 62 & 64.

Running 8275CL's with the HP high performance heatsinks and fans (7). Thus far no problems / lockups / heat issues, etc. The fans are consistently running about 25%, which is tolerable in its environment. Performance is (relatively speaking) phenomenal in comparison to the 6136's that were in it before.

Thank you Rollo!

surv server.jpg
 
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RolloZ170

Well-Known Member
Apr 24, 2016
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jbhoodatt said:
trying to a bus scan with a 2221a terminal on a x11dph-t, I believe it is 7bit but I don't know the start- stop range. Any help would be great....
Click to expand...
terminal can be swelected from 7 to 8 bit
my c# CLI 7 bit
"xxxx.exe -scan 20 70"
should be TPS53679 addr. 58 and 60
 
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jbhoodatt

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Dec 15, 2025
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RolloZ170 said:
terminal can be swelected from 7 to 8 bit
my c# CLI 7 bit
"xxxx.exe -scan 20 70"
should be TPS53679 addr. 58 and 60
Click to expand...
I did a scan with the 2221a and terminal here is an attached picture, I am not very good at command line input and not having any luck making your program work not of any fault to you, I extracted it to a folder there are three files when I click on the executable it shows that I am connected and says press any key to continue , as soon as I do it just closes the window, I did a scan and it is talking to the board, I am working on trying to resize the photos so I can post them here
 
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jbhoodatt

New Member
Dec 15, 2025
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jbhoodatt said:
I did a scan with the 2221a and terminal here is an attached picture, I am not very good at command line input and not having any luck making your program work not of any fault to you, I extracted it to a folder there are three files when I click on the executable it shows that I am connected and says press any key to continue , as soon as I do it just closes the window, I did a scan and it is talking to the board, I am working on trying to resize the photos so I can post them here
Click to expand...
 

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jbhoodatt

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Dec 15, 2025
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I just wanted to say thank you and somehow I figured it out, I do not do much command line input so it took playing with it for a minute and then I got the messages that both 58 and 60 were already modified skipping mod, I just didn't want at a time
 
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jbhoodatt

New Member
Dec 15, 2025
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Washington state
I finally figured it out, but one of you computer whizzes who is really affluent in command line input should explain how to insert the automatic programming files into the cprompt and how to execute it, it is probably really easy for some of the old school guys but it throws a windows-based guy off, I kept trying to open his folder after extracting it and just using the executable, the window would open and as soon as you touched anything it would close, it's a matter of dragging the executable into the C prompt window and then adding the proper regulator chip to that file, I think! I made it work and then just change the last two digits to do the second regulator.
 
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jbhoodatt

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Dec 15, 2025
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Washington state
It does really well and he did a good job of making it easy, I was just under the impression it was a executable and did not realize that it had to be pushed through the C prompt window. Thanks again X11 dph-t and two 8259 sales working great. It scores a 57,000 benchmark on PassMark. Versus my 42,000 I was getting with 6138 processors
 
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yuongkown92

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Nov 26, 2025
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fieldofdisarray said:
I can confirm I got this mod working on three separate HPE ProLiant DL380 Gen10 servers with Intel Xeon Platinum 8272CLs using an Adafruit MCP2221A. I didn't need to solder anything either, bending the pins on my cables going into the Motherboard for some light friction worked, but not sure if I would fully recommend doing that unless you're OK with the potential risks.

View attachment 36403

Thanks @RolloZ170 !
Click to expand...
"I have a ML350 Gen10 as well, but I am having trouble locating the specific pins due to the high density of ports on the motherboard. Could you provide a visual guide or point them out on a picture?"
 

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jbhoodatt

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Dec 15, 2025
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On my X11 dph, with two 8275cl , do you have any idea why the base frequency would have dropped to 2 GHz and then it seems like it is being throttled on the top end as well, I have played with the BIOS settings trying to run performance mode and others modes trying to correct this, sometimes when I change something I can get it to go back to up to a 2.5 gigahertz base but then it ends up throttling back down and now seems to be stuck there
 
N

NablaSquaredG

Bringing 100G switches to homelabs
Aug 17, 2020
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X11DPG-SN (for search function):

RolloZ170 said:
connect same as for X11DPi (page 1)
do a scan to find out the VRM controller vendor and addresses.
Click to expand...
Code: 
PXE1610C found at addr: 50
 remaining attempts= 0D
 ICC_MAX= E4
scanning at addr: 51
...
Primarion family controller found at addr: 60
PXE1610C found at addr: 60
 remaining attempts= 0D
 ICC_MAX= E4
Code: 
.\MCP2221a_iccmax_FF.exe -PXE1610C 50
.\MCP2221a_iccmax_FF.exe -PXE1610C 60
I will install the 8259CL later and report back (and post pics of correct pinout for reference)
 
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