Review Zone

PCI Express Specifications and ECRs for Review
PCI-SIG members can influence PCI technology development by submitting engineering change requests (ECRs) as well as reviewing and commenting on draft specifications, ECRs and engineering change notices (ECNs). Members should check the Review Zone regularly for new postings.

Specification and ECRs currently under review are listed below. PLEASE NOTE: THESE ARE DRAFT SPECIFICATIONS ONLY AND, AS SUCH, IS SUBJECT TO FURTHER REVISION AND REVIEW WITHOUT NOTICE. THESE DRAFT SPECIFICATIONS ARE PROVIDED TO YOU FOR REVIEW PURPOSES ONLY AND SHOULD NOT BE RELIED UPON FOR DESIGN OR MANUFACTURING PURPOSES. For a list of documents with completed review cycles, visit the PCI Express Review Archive

Additional information on the ECR/ECN process can be found in the Procedures Center.

Documents for Review
Submit review feedback on all documents below to administration@pcisig.com by the designated review period deadline.

(EWG) | Fitting-based Tx Preset Measurement Methodology for 8.0, 16.0, and 32.0 GT/s ECR​

The review period for this document will end on February 23, 2021. Feedback may be submitted to administration@pcisig.com.

(EWG) | Tx Jitter Measurement Methodology for PCIe 5.0 at 32.0 GT/s ECR​

The review period for this document will end on February 23, 2021. Feedback may be submitted to administration@pcisig.com.

(PWG) | Combined Power ECR

The review period for this document will end on February 8, 2021. Feedback may be submitted to administration@pcisig.com.

(Firmware WG) | Revised _DSM for Cache Locality TPH Features ECR

The review period for this document will end on February 8, 2021. Feedback may be submitted to administration@pcisig.com.

(SFF WG) | PCI Express SFF-8639 Module Specification Revision 4.0, Version 0.9​

The review period for this document will end on January 25, 2021. Feedback may be submitted to administration@pcisig.com.