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Post Package Repair (PPR) Types and SEL Events on Purley and Whitley Platforms

Content Type: Product Information & Documentation | Article ID: 000100102 | Last Reviewed: 04/06/2026

Post Package Repair (PPR) offers additional spare capacity within the DDR4 DRAM that can be used to replace faulty cell areas detected during system boot time.

The PPR setting in BIOS is available in

Intel® Server Board S2600BP/S2600ST/S2600WF
System Firmware (FW) Version - SE5C620.86B.02.01.0013.CLD01.032120230338 and later

Intel® Server D50TNP/M50CYP
System FW Version - SE5C620.86B.01.01.0006.2305172341 and later

PPR Types

There are two types of PPR, Soft and Hard

Soft PPR is only intended for use in the lab, to test RAS features without permanently fusing memory cells.

Hard PPR is intended for field applications and end customer installations in data centers (production environment). DDR4 memory is required to have at least one spare row per bank group for use with PPR.

PPR SEL Events or Messages

Both Soft and Hard PPRs will have same SEL events or messages for PPR runtime request or finish and all the other if PPR events. The only difference is in what happens with the setting. Soft will simply mask a bad cell(s) temporarily but when you reboot that cell is un-masked. in Hard, that cell(s) is masked off permanently and another unused row/cell in a given DRAM is utilized

Example SEL event:

SN:Mem err Sensor ST:Memory ED: Post Package Repair Runtime Request. Rank: 2 CPU: 2 DIMM: F2. - OEM ET:Asserted EC:OK

To determine which PPR Type is currently set, it can be verified or viewed either in BMC Web Console or through <F2> BIOS Setup Utility

Recommendation is to set PPR Type to Hard for production environment

Related Products

This article applies to 78 products.

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Discontinued Products

Intel® Compute Module HNS2600BPS Intel® Server System R1208WFQYSR Intel® Server System R2308WFTZSR Intel® Server System D50TNP1MHEVAC Compute Module Intel® Server Board S2600BPQ Intel® Server Board S2600STQ Intel® Server Board S2600STQR Intel® Server Board S2600WFTR Intel® Server System R1208WFTYS Intel® Server Board S2600STS Intel® Compute Module HNS2600BPS24 Intel® Compute Module HNS2600BPS24R Intel® Compute Module HNS2600BPB Intel® Server System R2312WF0NP Intel® Server System R2208WFTZSR Intel® Compute Module HNS2600BPQR Intel® Server Board S2600STBR Intel® Server System LWP1304YR561601 Intel® Server System D50TNP1MHCRAC Compute Module Intel® Server System R2224WFTZSR Intel® Server System R2208WFDZS Intel® Server System ASB2208WFAFC1 Intel® Server Board S2600WFT Intel® Server System R2312WF0NPR Intel® Server System R2224WFTZS Intel® Server System R2208WFSZS Intel® Server Board S2600WF0R Intel® Server Board S2600STK Intel® Server Board S2600BPSR Intel® Server System R1304WFTYS Intel® Server System D50TNP2MHSTAC Storage Module Intel® Server System R2312WFTZS Intel® Server System R1304WF0YSR Intel® Server Board S2600BPS Intel® Server System LWP2208ZR581202 Intel® Server Board S2600WFQ Intel® Compute Module HNS2600BPBLC24 Intel® Compute Module HNS2600BPSR Intel® Server Board S2600WFQR Intel® Compute Module HNS2600BPBLC Intel® Compute Module HNS2600BPB24 Intel® Compute Module HNS2600BPB24R Intel® Server System R1304WFTYSR Intel® Server System R2208WFQZS Intel® Server Board S2600BPQR Intel® Server System R2312WFQZS Intel® Server System R2308WFTZS Intel® Server System R1304WF0YS Intel® Server Board S2600BPB Intel® Compute Module HNS2600BPQ Intel® Server System R2208WF0ZSR Intel® Server System D50TNP2MFALAC Acceleration Module Intel® Server System LWP2208ZR561603 Intel® Server System R2208WFQZSR Intel® Compute Module HNS2600BPBLC24R Intel® Server System LWP2216ZR561205 Intel® Compute Module HNS2600BPQ24R Intel® Server System LWP2216ZR561204 Intel® Server Board S2600STB Intel® Server System D50TNP2MHSVAC Management Module Intel® Server System R2312WFTZSR Intel® Server System ASB2208WFAFP1 Intel® Server System D50TNP1MHCRLC Compute Module Intel® Server System R1208WFTYSR Intel® Server System R2208WF0ZS Intel® Server Board S2600BPBR Intel® Compute Module HNS2600BPQ24 Intel® Server System R2208WFTZS Intel® Server System R2224WFQZS Intel® Compute Module HNS2600BPBLCR Intel® Server Board S2600WF0

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