Hypertransport sync flood error

Posted by Carl B on Super User See other posts from Super User or by Carl B
Published on 2012-09-27T05:12:30Z Indexed on 2012/09/27 9:40 UTC
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Filed under:

memory

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motherboard

What is it? And what causes it?

Is it only for uncorrectable DIMM Errors(Troubleshooting DIMM errors)?

When an UCE occurs, the memory controller causes an immediate reboot of the system.

During reboot, the BIOS checks the Machine Check registers and determines that the previous reboot was due to an UCE, then reports this in POST after the memtest stage:

A Hypertransport Sync Flood occurred on last boot

3 BIOS reports this event in the service processor’s system event log (SEL) as shown in the sample IPMItool output

There are what seems to be some suggested answers to include

Bad Caps
Bios verisons (happens in one version not the other)
Graphics card issues
Lack of power to the CPU

The list of possible generators seems to target everything but the computer case.

System Specs:

Windows Home Premium 64
Motherboard - MSI790FX-GD70 (MS7577) / Bios v 1.9 (American Megatrensa Inc)
Ram - Patriot G Series ‘Sector 5’ Edition 4GB DDR3 1600
CPU - AMD Phenom II X2 555 Black Edition Callisto 3.2GHz Socket AM3 80W (Note: unlocked 2 cores CPU Z ids it as phenom II x4 B55)
Graphics - 2 x Radeon 5750 in crossfire
PSU - ABS 900w
HDDs - 2 Seagate 1.5 TB Sata
SSD - 1 OCZ 120 GB Vertex Plus R2

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