[Alderlake-S] It is stopped at BIOS_RESET_CPL when is booting.

[lkwmore]

Hi

I made sample board 6ea with designed Alderlake-S.

Processor model: i7-12700K

Motherboard model : Alderlake-S

Bios : Ami bios label 62

The 3ea board is booting well,

but 3 board meet BIOS_RESET_CPL crash when booting up.

But it is booting well as below scenario.

1. The board is booting fail in BIOS_RESET_CPL.

2. The power is off and power on in 5 seond.

3. The box is booting well to shell.

And it is booting fail as below scenario.

1. The box is booting well to shell

2. The power is off and power on after 2 minute.

3. The box is booting fail in  BIOS_RESET_CPL.

I don't know which part to debug? (hw issue or bios issue)

Can you give me some info to debug?

Many thanks.

[Jean_Intel]

Hello lkwmore,

Thank you for posting on the Intel️® communities. I am sorry to hear that you are experiencing issues when booting your system. 

In order to have a better understanding of your issue, please provide me with the following:

• Could you provide me with more details about the Motherboard models you are using?
• Are you trying to implement an IoT device with this CPU model?

Best regards, 

Jean O.  

Intel Customer Support Technician

[lkwmore]

Hello Jean

Thanks for your quick reponse.

Motherboard is designed by ourselves.

Motherboard model
  .Alderlake-S ( SRL4N ) + W680 (QXT5) + BMC (AST2510)
  .We refer the intel crb schematic. ( intel document 634094)

Bios Info
Company : AMI Bios 
Core Ver. : 5.26
Project Version : 1AXFE 0.62 x64
RC version : 0C.00.75.10

I make the sample 6ea.

#1,#2,#3 : it is working well

#4,#5,#6 : it is bad

-.When is booting up, it stop at postcode 0xA61.

Set BIOS_RESET_CPL to indicate all configurations complete
POSTCODE = <00000A61>
assert fail

-.I try to power off/on again in 5 second.
-.It is booting well.
-.and I power off. I wait for 1 minute.
-.When power on, it stop at 0xA61

Can you give me some info to debug?

Many thanks

lkwmore..

[Jean_Intel]

Hello lkwmore,

Thank you for the information provided.  

I will proceed to check the issue internally and post back soon with more details. 

Best regards, 

Jean O.  

Intel Customer Support Technician

[lkwmore]

Hello Jean

Many Many thanks.

I will wait for your reponse.

lkwmore

[Jean_Intel]

Hello lkwmore,

Thank you for waiting for a response.

As you are debugging your designed Motherboard, please, create an account to submit your inquiry in our Intel Developer Zone, as the document you refer to comes from this website. So, you receive further troubleshooting support and get access to documentation.  

Intel Developer Zone - Contact Page

Best regards,

Jean O.  

Intel Customer Support Technician

[lkwmore]

Hello Jean

Does your comment mean to re-register at Intel Premier support -> Create New Case?

Anyway, I have one question.

For 3ea of bad sample, I modified the setup menu as below.

Advanced -> Power & Performance -> CPU - Power Management Control
Intel(R) SpeedStep(tm) - Disable
Intel(R) Speed Shift Technology - Disable
C states - Disable

And I tested power on/off in 3ea sample.
It is working well.

I have my doubts.
The above three options are related to power management, and if it is disabled them, booting will be fine.

Jean
Can you explain what is wrong with my board regarding this phenomenon?

Many thanks

lkwmore