Power & hardware

Power cuts, UPS, boot failures, physical NAS hardware, and recovery after outages.

40 entries — IDs PWR-001 through PWR-040.

PWR-001: Power cut — NAS won't come back on

Symptoms: Blackout ended; DXP 8800 Plus dark or fans not spinning. Likely cause: UPS drained, breaker tripped, or PSU fault. Fix: 1. Check wall power and UPS output. 2. Press NAS power button once; wait 2 minutes. 3. If no lights, check breaker panel. 4. Do not yank drives while powered off. Still broken? Home Power Outage Recovery

PWR-002: Pool degraded after power outage

Symptoms: Power returned; TrueNAS shows DEGRADED. Likely cause: Drive didn't remount or failed during outage. Fix: 1. Wait for full boot — all disks ONLINE. 2. If still degraded, follow pool degraded guide. 3. Run SMART on all disks. 4. Replace any drive with new errors. Still broken? Server When Pool Degraded

PWR-003: UPS beeping after outage

Symptoms: Unifi or NAS UPS alarming. Likely cause: On battery or battery end-of-life. Fix: 1. Acknowledge alarm per UPS manual. 2. Restore mains power. 3. Replace UPS battery if old. 4. Test UPS self-test monthly. Still broken? Home Power Outage Recovery

PWR-004: Should NAS be on UPS?

Symptoms: Short outages cause issues. Likely cause: Clean shutdown needs UPS signaling. Fix: 1. NAS and router on UPS recommended. 2. Configure UPS shutdown script if available. 3. Minimum: avoid abrupt power loss during writes. Still broken? Basics Physical Equipment Map

PWR-005: NAS reboot loop after storm

Symptoms: Fans spin, reboot, repeat. Likely cause: PSU, RAM, or drive preventing boot. Fix: 1. Disconnect non-essential USB. 2. Boot with minimum drives only if expert — risky. 3. Otherwise contact support/Ryan. 4. Do not RMA pool disks as first step. Still broken? Home Turn Everything On

PWR-006: Smell of burning from NAS

Symptoms: Electrical burn smell from DXP 8800 Plus. Likely cause: PSU or backplane failure — fire risk. Fix: 1. Pull power plug immediately. 2. Do not restart until inspected. 3. Photo damage for insurance. 4. Professional hardware inspection before reuse. Still broken? Handover Notify Insurance And Utilities

PWR-007: Fan noise suddenly loud

Symptoms: NAS sounds like jet engine. Likely cause: Fan failure, dust, or high CPU from transcodes. Fix: 1. Check TrueNAS CPU temps. 2. Clean dust filters. 3. Verify all chassis fans spin. 4. Replace failed fan module. Still broken? Basics Physical Equipment Map

PWR-008: Room too hot for NAS

Symptoms: Closet or rack overheating. Likely cause: Poor ventilation summers. Fix: 1. Move airflow or add room AC/fan. 2. Open closet door. 3. Monitor drive temps in SMART. Still broken? Basics Physical Equipment Map

PWR-009: Lightning strike — what to check

Symptoms: Storm nearby; gear acting odd. Likely cause: Surge damage possible. Fix: 1. Inspect UPS absorbed surge indicator. 2. Test NAS SMART all drives. 3. Replace suspicious network gear. 4. Consider whole-home surge protection. Still broken? Home Power Outage Recovery

PWR-010: Cannot reach NAS after power restore

Symptoms: Power on but 192.168.2.203 dead. Likely cause: Network gear also rebooting; IP conflict. Fix: 1. Wait 5 min for UniFi Dream Machine SE. 2. Power-cycle switch if no link lights. 3. Confirm NAS Ethernet linked. 4. Check DHCP reservation for .203. Still broken? Home Turn Everything On

PWR-011: Apps didn't start after power return

Symptoms: TrueNAS up but Jellyfin etc. down. Likely cause: Docker service slow start or pool delayed mount. Fix: 1. Wait 10 minutes post-boot. 2. Start Docker/k3s if stopped. 3. Start apps in order: cloudflared, NPM, media. 4. See Docker FAQ. Still broken? Home Turn Everything On

PWR-012: Windows A: drive red X after outage

Symptoms: Mapped drive disconnected. Likely cause: NAS was off during Windows boot. Fix: 1. Reconnect A: when NAS online. 2. Enable reconnect at sign-in on map drive. 3. Verify share path. Still broken? Home Windows Pc Basics

PWR-013: cloudflared down after reboot

Symptoms: External sites dead; LAN OK. Likely cause: Tunnel app didn't auto-start. Fix: 1. Start cloudflared in TrueNAS Apps. 2. Set start on boot. 3. Check tunnel logs. Still broken? Home Restart Cloudflared

PWR-014: Scheduled shutdown before storm

Symptoms: Preemptive shutdown confusion. Likely cause: Manual shutdown done right. Fix: 1. Use TrueNAS Shut Down from UI. 2. Wait for lights off. 3. UPS protects network gear. 4. Power on after storm passes. Still broken? Home Power Outage Recovery

PWR-015: NAS powered off during resilver

Symptoms: Accidental unplug during rebuild. Likely cause: Pool may resume or show errors. Fix: 1. Power on and wait — do not touch drives. 2. Check pool status and resilver progress. 3. Run scrub after resilver completes. 4. Avoid repeat — use UPS. Still broken? Server When Pool Degraded

PWR-016: BIOS/UEFI settings lost

Symptoms: Rare clock or boot order wrong. Likely cause: CMOS battery or firmware glitch. Fix: 1. Set boot to OS drive. 2. Verify all drives detected in BIOS. 3. Contact Ugreen support if drives missing. Still broken? Home Truenas Basics

PWR-017: Drive bay hot-swap during power on

Symptoms: Swapped drive without shutdown. Likely cause: May work on DXP — risky if unsure. Fix: 1. Prefer shutdown for replacement unless documented hot-swap. 2. If pool degraded, follow degraded guide. 3. Never swap two drives at once. Still broken? Server When Pool Degraded

PWR-018: Ethernet link light off on NAS

Symptoms: No network despite power on. Likely cause: Bad cable, port, or NIC. Fix: 1. Try different cable and switch port. 2. Check link on switch side. 3. Reboot NAS once. 4. USB NIC fallback only if documented. Still broken? Home When Internet Broken

PWR-019: Whole home power out — priority order

Symptoms: Everything dark. Likely cause: Unknown restart sequence. Fix: 1. Power: modem/ONT → UniFi → NAS → PC. 2. Wait between layers. 3. See turn everything on guide. Still broken? Home Turn Everything On

PWR-020: Generator power — safe for NAS?

Symptoms: Running on generator during extended outage. Likely cause: Dirty power can harm electronics. Fix: 1. Use UPS between generator and NAS. 2. Avoid startup surges. 3. Shutdown NAS if voltage unstable. Still broken? Home Power Outage Recovery

PWR-021: NAS draws too much at startup

Symptoms: Breaker trips when NAS + PC start. Likely cause: Inrush current from 7+ spinning disks. Fix: 1. Stagger power-on of heavy devices. 2. Dedicated circuit for NAS if possible. 3. Check electrician for panel capacity. Still broken? Basics Physical Equipment Map

PWR-022: Front panel power button unresponsive

Symptoms: Cannot power on via button. Likely cause: Button fault or motherboard issue. Fix: 1. Try rear power switch if present. 2. Check UPS output. 3. Hold button 10s for hard off then on. Still broken? Home Turn Everything On

PWR-023: LED status unclear on DXP 8800 Plus

Symptoms: Don't know if boot finished. Likely cause: Wait for UI reachable at .203. Fix: 1. Ping 192.168.2.203. 2. Open dsm.saxobroko.com when on LAN. 3. Full boot may take 5–10 minutes. Still broken? Home Truenas Basics

PWR-024: Hear drives spin up then down repeatedly

Symptoms: Drives cycling on boot. Likely cause: Power supply insufficient or drive fault. Fix: 1. Stop cycling — pull power. 2. Remove recently added hardware. 3. Test with support — don't guess drive order. Still broken? Server When Pool Degraded

PWR-025: UPS software not connected to TrueNAS

Symptoms: UPS can't auto-shutdown NAS. Likely cause: USB cable not linked or NUT not configured. Fix: 1. Optional improvement: connect UPS USB. 2. Configure NUT in TrueNAS. 3. Until then, manual shutdown on long outages. Still broken? Home Power Outage Recovery

PWR-026: Battery backup runtime too short

Symptoms: UPS dies in 5 minutes. Likely cause: Undersized UPS or old battery. Fix: 1. Size UPS for NAS + router 15+ min. 2. Replace battery every 3–5 years. 3. Graceful shutdown beats sudden off. Still broken? Basics Physical Equipment Map

PWR-027: Physical move of NAS to new house

Symptoms: Relocating DXP 8800 Plus. Likely cause: Shock damage if running. Fix: 1. Full shutdown and unplug. 2. Label drive bays if removing trays. 3. Transport upright secured. 4. Wait 30 min at new location before power on. Still broken? Basics Physical Equipment Map

PWR-028: Dropped NAS — drives OK?

Symptoms: Unit fell or bumped hard. Likely cause: Head crash risk even when off. Fix: 1. Do not power on immediately. 2. Listen for clicks on boot. 3. Run full SMART on all drives. 4. Replace any with new errors. Still broken? Server Read Smart Disk Errors

PWR-029: Water leak near NAS

Symptoms: Moisture in rack/closet. Likely cause: Electrical hazard and corrosion. Fix: 1. Power off and unplug immediately. 2. Dry area before restart. 3. Inspect for corrosion. 4. Insurance claim if damaged. Still broken? Handover Notify Insurance And Utilities

PWR-030: Pets chewed network or power cable

Symptoms: Intermittent disconnects. Likely cause: Physical damage. Fix: 1. Replace damaged cables entirely. 2. Route cables protected. 3. Check for short before power on. Still broken? Basics Physical Equipment Map

PWR-031: NAS in garage — temperature extremes

Symptoms: Winter cold / summer heat. Likely cause: Out of spec operation. Fix: 1. Move to climate-controlled space. 2. Drives fail faster in extremes. 3. Check SMART temps weekly if must stay. Still broken? Basics Physical Equipment Map

PWR-032: Power button accidentally pressed

Symptoms: Brief shutdown mid-stream. Likely cause: Bump or kids. Fix: 1. Wait for clean shutdown if graceful. 2. Power on after 30 seconds. 3. Check pool and apps. 4. Use physical lock or rack guard if repeat. Still broken? Home Power Outage Recovery

PWR-033: Firmware update bricked after power loss

Symptoms: NAS won't boot after failed update. Likely cause: Power lost during flash. Fix: 1. Contact TrueNAS/Ugreen support. 2. Do not swap pool drives to another machine blindly. 3. Pool data often intact if drives untouched. Still broken? Home Truenas Basics

PWR-034: Redundant PSU if one fails?

Symptoms: DXP 8800 Plus PSU question. Likely cause: Check hardware spec — may be single PSU. Fix: 1. Know your model's PSU count. 2. Keep spare PSU part number if dual. 3. Sudden off may be PSU — not always disk. Still broken? Basics Physical Equipment Map

PWR-035: Ryan — first power outage alone

Symptoms: Inherited NAS; lights flickered. Likely cause: New operator panic. Fix: 1. Wait for power stable. 2. Turn on network then NAS. 3. Check pool HEALTHY before heavy use. 4. Read power outage recovery guide fully. Still broken? Handover Who Gets What

PWR-036: Status page wrong after outage

Symptoms: status.saxobroko.com shows all red. Likely cause: Services still starting. Fix: 1. Wait 15 minutes. 2. Refresh Homepage/status. 3. Fix NAS and cloudflared first. Still broken? Home Check Status Page

PWR-037: Clock wrong after long power off

Symptoms: TLS errors on apps. Likely cause: CMOS battery or NTP not synced. Fix: 1. Fix TrueNAS NTP. 2. Reboot router if time wrong network-wide. 3. Retry HTTPS sites. Still broken? Home Truenas Basics

PWR-038: Multiple brownouts in one day

Symptoms: Lights dim repeatedly. Likely cause: Utility grid instability. Fix: 1. Minimize writes during brownouts. 2. UPS helps ride through. 3. Consider shutting NAS until stable. 4. Log incidents for utility report. Still broken? Home Power Outage Recovery

PWR-039: Insurance claim for NAS hardware

Symptoms: Lightning destroyed unit. Likely cause: Need documentation. Fix: 1. Photo serial numbers and damage. 2. Note purchase date if known. 3. Pool data separate from hardware claim. 4. Notify insurer per handover guide. Still broken? Handover Notify Insurance And Utilities

PWR-040: When to call a professional

Symptoms: Hardware smells, clicks, or pool FAULTED. Likely cause: Beyond home repair safe zone. Fix: 1. Stop using NAS. 2. Do not run filesystem repair tools on ZFS pool. 3. Data recovery labs for FAULTED + critical data. 4. Ryan: use Saxon's contacts or IT pro. Still broken? Handover First 24 Hours