VRM modify ICC_MAX to run high TDC OEM cpu

[oddssodds]

have done recently on a R640, i don't know.
R740 can be different and you need to power up with cpu's installed.

I didn’t have to last time.

The wires are in the right place correct ?

Is there a bios version that might not work or something like that?

I did a search and a Japanese guy had exactly the same problem and it turned out that the programmer board was defective. He had another member check the board and it came back all zero is as hardware identification.

What software package did he use to check the programmer board?

There’s no way for the VRM to be locked is there?

 

[oddssodds]

His problom been solved,the result is his MCP2221A device was broken being caused his every move were failed.
My laptop connect his MCP with 000000000 device id.

View attachment 42427

Hello @devilpeter2002

I am having the same problem. I reset my vrm's previously, but had to change the motherboard. Now same error.

Can you tell me what software you used to check MCP?

 

[RolloZ170]

I did a search and a Japanese guy had exactly the same problem and it turned out that the programmer board was defective.

if you use laptop/notebook with 2pin AC adapter the MCP2221a is probably damaged if not ground connected first.
there is about 100V AC between ground of laptop/notebook and R740.

What software package did he use to check the programmer board?

MPC2221 Terminal Page 2

https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/SoftwareLibraries/Firmware/MCP2221Terminal.zip

https://ww1.microchip.com/downloads...SoftwareLibraries/Firmware/MCP2221Utility.zip

edit: use Utility.


edit: solved, dead motherboard

 

[oddssodds]

MPC2221 Terminal Page 2

https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/SoftwareLibraries/Firmware/MCP2221Terminal.zip

https://ww1.microchip.com/downloads...SoftwareLibraries/Firmware/MCP2221Utility.zip

edit: use Utility.
View attachment 49939

THIS IS WHAT I GET WHEN I PLUG IN.
I ADDED THE START AND END ADDRESSES

OH I DOWNLOADED THE TERMINAL

 

[oddssodds]

outside range....
7bit
10 to 7F

THIS IS CORRECT?
COULD IT BE THAT THE STOCK WINDOWS DRIVER WASN'T WORKING CORRECTLY?

 

[RolloZ170]

COULD IT BE THAT THE STOCK WINDOWS DRIVER WASN'T WORKING CORRECTLY?

it is a HID devide with the DLL to comunicate.
not correct driver should give errors thought.

OH I DOWNLOADED THE TERMINAL

do scan
7bit
10 to 7F

edit: solved, dead motherboard

 

[oddssodds]

do scan
7bit
10 to 7F

 

[oddssodds]

Also, when I try to install the driver from Microchip, it says that it isn't compatible

 

[oddssodds]

still nothing found. check connection MCP2221a -> R740.
buy new MCP2221a and don't use laptop/notebook (or ground USB shield to R740 shield first)

didn't have it connected. doing now

 

[RolloZ170]

View attachment 49942

still nothing found. check connection MCP2221a -> R740.
buy new MCP2221a and don't use laptop/notebook (or ground USB shield to R740 shield first)

Also, when I try to install the driver from Microchip, it says that it isn't compatible

don't need a driver with w10 and up..

--------------------------------------------------------------------------------------------------------------------------------------
           README for the MCP2200/MCP2221 Driver INF File
--------------------------------------------------------------------------------------------------------------------------------------

                Microchip Technology, Inc.




--------------------------------------------------------------------------------------------------------------------------------------
System Requirements
--------------------------------------------------------------------------------------------------------------------------------------
Operating System:   Windows XP SP3, Vista, 7, 8 - (ADMIN PRIVILEGES ARE REQUIRED FOR DRIVER INSTALLATION)

edit: solved, dead motherboard

 

[oddssodds]

don't need a driver with w10 and up..

--------------------------------------------------------------------------------------------------------------------------------------
           README for the MCP2200/MCP2221 Driver INF File
--------------------------------------------------------------------------------------------------------------------------------------

                Microchip Technology, Inc.




--------------------------------------------------------------------------------------------------------------------------------------
System Requirements
--------------------------------------------------------------------------------------------------------------------------------------
Operating System:   Windows XP SP3, Vista, 7, 8 - (ADMIN PRIVILEGES ARE REQUIRED FOR DRIVER INSTALLATION)

NOTHING

 

[oddssodds]

SHOULD THIS BE LIT?

 

[oddssodds]

Is there anything in Idrac that might be interfering? Do I need to confirm a setting or bios or Idrac version?

I can load a processor and a ram stick

I checked that the ground terminal on P4 had continuity to ground

 

[RolloZ170]

Is there anything in Idrac that might be interfering?

iDrac and Chipset firmware read to VRM too.

I checked that the ground terminal on P4 had continuity to ground

but latop/notebook with 2pin AC adapter has 100V AC ground to R740 ground = MCP2221a damage if not connect ground first.

SHOULD THIS BE LIT?

if you press it yes.

edit: solved, dead motherboard

 

[oddssodds]

this board is dead!!

 

[oddssodds]

maybe config. to dual PSU redundancy ?
plug PSU in Slot1

tried both, no life

 

[RolloZ170]

tried both, no life

bought from source ? ebay e-waste scrap dealer ?

 

[oddssodds]

dealer

driving back now. actually got a 2020 version, which is why I bought it

 

[oddssodds]

New board, tested in front of me. They couldn't believe the board they gave me was dead. They said they tested it and I believe them.

All VRM programming went smooth

 

[liangjiu1]

RolloZ170，4700g3How should one crack high power