TA-915: BIOS May Cause Non-maskable Interrupt (NMI) Errors During Boot
An Intel customer discovered an issue implementing Intel® Xeon® Processors 5400 series E-0 stepping and BIOS R0091 or Intel® Modular Server BIOS R0047. Approximately one out of three boots will exhibit a non-maskable interrupt (NMI) with one or more of the following characteristics:
- Immediately following POST, the following error may be seen: NMI detected. System Halted, followed by a system hang.
- No POST, no video (system hang)
- System hang with the following POST Code LED indicators: MSB off | off | green | amber LSB
- In some instances, uncorrectable memory errors may be falsely reported in the system event log (SEL), and DIMM's C1 and D1 may be taken offline.
Technical Advisory TA-915-7 (PDF) 
File name: TA_915_7_00.PDF
Size: 46 KB
Date: November 2008
File Revision: 7
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