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### Spontaneous Reboot With “`OEM 0#x12 SEL`” Messages and No Memory Errors (6652566)

Spontaneous reboots can occur with no memory errors reported. This problem is associated with an entry in the System Event Log (SEL) labeled `OEM #0x12` followed by a series of entries labeled `OEM record e0`. Here is an example:

    6502 | 12/22/2007 | 07:41:21 | OEM #0x12 |  | Asserted
    6602 | OEM record e0 | 00000000040f0c0200100000f2
    6702 | OEM record e0 | 01000000040000000000000000

The hexadecimal value in “`OEM record e0`” entries might be different from those in the example.

If this problem occurs on your system, you should take basic steps to eliminate possible causes, as described here. If you take these steps and the problem continues to occur, contact Sun Support for additional remediation.

## Remedial Steps

The following steps might eliminate the problem. Retest the system after each step:

1. Verify that the system BIOS, other system firmware, and PCI card firmware is up to date. For information on verifying and updating system BIOS and firmware, consult the Software Release Notes.
2. Remove all PCI cards and CPU modules. Use canned compressed air to clean their contacts and slots, and then reseat them.
3. If PCI cards have been added to the system recently, try rearranging the PCI cards. Note any change in symptoms after the cards are rearranged.

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