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How to Resolve the 1-5-2-1 Beep Code on Intel® Server Systems

Content Type: Error Messages   |   Article ID: 000033871   |   Last Reviewed: 08/06/2021
Description Resolution

Environment

Any Intel® Server Board

Description

Board does not POST. Rather, it presents a 1-5-2-1 beep code error.

Resolution

Because the 1-5-2-1 beep code initially points to a CPU socket population situation (click here), proceed as follows:

  1. Both CPU1 & CPU2 power need to be supplied even if CPU2 is not installed.
  2. Ensure the board-CPU combination is a compatibility one.  For this, refer to our Product Specifications page.
  3. Make sure that the processor is properly seated. See the Intel® Processor Installation Support page.
  4. Verify that the processor has thermal paste.
    Note
    • CPU1 needs to be installed in order to boot the system up.
    • CPU1 must be populated before CPU2.
    • Power supply needs to have enough wattage to provide the resources in a dual processor configuration.  Check this on the Technical Product Specification document for the Intel board model in question.
  5. Test the processor in a known working, compatible motherboard.
  6. Check for physical damage like bents pins.

Related Products

This article applies to 70 products.
Intel® Server Board S2600KP Family Intel® Server Board S1400SP2 Intel® Server Board S1400SP4 Intel® Server Board D40AMP Intel® Server Board S2600WFR Intel® Server Board D50DNP Intel® Server Board S2600ST Intel® Server Board M10JNP Intel® Server Board M10JNP2SB Intel® Server Board S1400SP Family Intel® Server Board M50FCP Intel® Server Board S2600WFTF Family Intel® Server Board D50TNP Intel® Server Board M20NTP Intel® Server Board S2600TP Family Intel® Server Board S2600BPR Server Boards Intel® Server Board M50CYP Intel® Server Board S2600WFTF

Discontinued Products

Intel® Server Board S2600KPF Intel® Server Board S2600BPQ Intel® Server Board S1200SPLR Intel® Server Board S2600CW2S Intel® Server Board S2600CW2SR Intel® Server Board S2600WFQR Intel® Server Board S7200AP Intel® Server Board S7200APR Intel® Server Board S2600STQ Intel® Server Board S2600BPQR Intel® Server Board S2600STQR Intel® Server Board S2600TPFR Intel® Server Board S2600WFTR Intel® Server Board S2600KPFR Intel® Server Board S2600BPB Intel® Server Board S2600WT2R Intel® Server Board S2600STS Intel® Server Board S1200SP Family Intel® Server Board S2600CW2 Intel® Server Board S2600TPR Intel® Server Board S1200SPOR Intel® Server Board S2600KP Intel® Server Board S2600TPF Intel® Server Board S2600STBR Intel® Server Board S1200SPL Intel® Server Board S2600KPR Intel® Server Board S2600CWTSR Intel® Server Board S2600STB Intel® Server Board S2600WFT Intel® Server Board S1200SPS Intel® Server Board S2600WF0R Intel® Server Board S2600STK Intel® Server Board S1200SPO Intel® Server Board S2600CWTS Intel® Server Board S1200SPSR Intel® Server Board S2600BPSR Intel® Server Board S2600WT Family Intel® Server Board S2600WTT Intel® Server Board S2600CW Family Intel® Server Board S2600BPBR Intel® Server Board S2600WTTR Intel® Server Board S2600TP Intel® Server Board S2600CW2R Intel® Server Board S2600WT2 Intel® Server Board S2600CWTR Intel® Server Board S2600CWT Intel® Server Board S2600WF0 Intel® Server Board S7200AP Family Intel® Server Board D40AMP1SB Intel® Server Board S2600BPS Intel® Server Board S2600WFQ

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