Xeon D Power Sequence Issue

[GBott1]

Hi,

We are trying to bringup a new PCB, based on the Power sequence described in BDW_DE_SoC_EDS_vol3._544042_R2_1.pdf.

Judging by the SOC outputs, sequence is proceeding correctly nearly till the end (we see SOC de-asserting SLP_S4_N and SLP_S3_N, asserts DRAM_PWR_OK, activates clocks, ands read from SPI bus). However for some reason PROCPWRGD_PCH and PLTRST_N never go inactive. We checked several critical outputs from CPU (such as CATERR_N, FIVR_FAULT). but all seem to be ok. Can anyone advise how to root cause the reason why PROCPWRGD_PCH is not deasserted by the SOC? e.g. which signals to check? Thanks,

Izak Nashelsky

[CarlosAM_INTEL]

Hello, bgil:

Thank you for contacting Intel Embedded Community.

In order to be on the same page, could you please give us the part numbers and SKUs of the processors related to this thread?

By the way, could you please tell us if the affected project has been designed by you or a third-party company? In case that it is a third-party unit, could you please give us all the information related to it?

Waiting for your answer to these questions.

Best regards,

Carlos_A.

[MAlte]

Dear Carlos

Please see blow my answers:

SKU's:

Intel® Xeon® Processor D-1539/D-1559

P/N:

GG8067402569000 SR2DH (D-1539)

GG8067402570801 SR2M5 (D-1559)

Thanks for support..

Regards,

Maxim Alter

Hardware Engineer

Tel:

+972(9) 960-0620

Cell:

+972(54) 541-2339

Fax:

+972(9) 954-4315

E-mail: mailto:malter@rugged.com malter@rugged.com

Company website: www.rugged.com

[CarlosAM_INTEL]

Hello, MaximAlter :

We really appreciate the provided information.

However, we need the answer to the following questions:

Could you please tell us if the affected project has been designed by you or a third-party company? In case that it is a third-party unit, could you please give us all the information related to it?

Waiting for the requested information.

Best regards,

Carlos_A.

[MAlte]

Hello Carlos

Sorry for delay..

Our Project is C877 SBC I/O 3U VPX based on Xeon D-1500 that designed and manufactured by us (Aitech Systems).

There is NO third-party company envolved in this project.

Thanks

Maxim Alter

[CarlosAM_INTEL]

Hello, MaximAlter :

Thanks for your reply.

In order to help you, we will contact you via email.

Best regards,

Carlos_A.

[StephenAsh]

Hello,

I am currently experiencing a very similar situation on a custom PCB  with the D-1559. Could you please let me know what suggestions were made to help Carlos_A above?

Email : <EMAIL REMOVED>

Thanks,

Stephen Ash

[CarlosAM_INTEL]

Hello, @StephenAsh:

Thank you for contacting Intel Embedded Community.

We sent an email to the address associated with this account with information that may help you.

Best regards,

@CarlosAM_INTEL.

[YunusD]

Hello Carlos,

We have the same problem. Could you please give us the document that consist solution?

Regards,

Yunus.

[CarlosAM_INTEL]

Hello, @YunusD:

Thank you for contacting Intel Embedded Community.

We sent an email to the address related to this account with information that may help you.

Best regards,

@CarlosAM_INTEL