diff --git a/changes/2023-11-node-failure-incident-response/index.md b/changes/2023-11-node-failure-incident-response/index.md index 24b07c7..53ba5a9 100644 --- a/changes/2023-11-node-failure-incident-response/index.md +++ b/changes/2023-11-node-failure-incident-response/index.md @@ -4,27 +4,14 @@ description: | Motherboard was replaced in response to this incident. --- -## Hardware changes - -* Ordered a replacement `Supermicro X9SCL-F rev1.11a` from eBay (~$20 + shipping). -* TODO: Install +See [related incident](/incidents/2023-11-12-node-failure/index.md) for diagnostics +information. -## Diagnosis - -Diagnosed a motherboard failure. Rationale: +## Hardware changes - * Symptoms began after a full shutdown. - * Symptoms: - * Fans spin for ~1 second on pushing power button, then stop. Repeats after ~1 - second delay, indefinitely. - * No display - * No beep from built-in speaker - * No POST - * Power cycling stops after holding powr button for 5 seconds. - * Symptoms unchanged when removing all components (one by one): disks, RAM sticks, - CPU. - * Symptoms unchanged with multiple PSUs, PSU cables, and wall outlets. +* Ordered a replacement `Supermicro X9SCL-F rev1.11a` from eBay (~$20 + shipping). +* TODO: Install replacement ## TODO diff --git a/incidents/2023-11-12-node-failure/index.md b/incidents/2023-11-12-node-failure/index.md index 69ecfeb..2ca25ec 100644 --- a/incidents/2023-11-12-node-failure/index.md +++ b/incidents/2023-11-12-node-failure/index.md @@ -11,15 +11,20 @@ each cycle, but no beep from the motherboard speaker. The boot loop can be stopp holding the power button. -## Tried - -* Replaced CMOS CR2032 battery: No change in symptoms -* Removed RAM: No change in symptoms -* Removed 5 disks: No change in symptoms - - -## To try - -* Replace PSU -* Remove all disks: Label SATA cables, remove power connections -* Replace motherboard: I really hope not... +## Diagnosis + +Diagnosed a motherboard failure. Rationale: + + * Symptoms began after a full shutdown. + * Symptoms: + * Fans spin for ~1 second on pushing power button, then stop. Repeats after ~1 + second delay, indefinitely. + * No display + * No beep from built-in speaker + * No POST + * Power cycling stops after holding powr button for 5 seconds. + * Symptoms unchanged when removing all components (one by one): disks, RAM sticks, + CPU. + * Symptoms unchanged when replacing (one by one): PSU, PSU cables, wall outlets, CMOS + CR2032 battery. + * Symptoms unchanged with multiple PSUs, PSU cables, and wall outlets.