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Thread: Did brown out just kill my CPU?!
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11-23-2021 05:19 PM #1New ROGer Array
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Did brown out just kill my CPU?!
Just had a quick flash brown out during storm. My otherwise perfect PC of just over a year, running an i9 chip on Asus ROG Maximus XII, seems instantly damaged. Still running with RAM RGB lights and fans, and I hear normal drive sounds during boot, but motherboard is giving me error 7F ("reserved for future use" per manual) which then changes to "Check CPU". Meanwhile, monitor display is blank, no signal. How do I even begin to troubleshoot this, short of swapping out the CPU?? Please help! I've done cold reboots to no avail, same result. Thanks for any suggestions.
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11-23-2021 05:23 PM #2Moderator Array Nate152 PC Specs
Nate152 PC Specs Motherboard ROG Strix Z690-F Gaming WiFi Processor i7-12700KF Memory (part number) Kingston Fury Beast 16GB (2x8GB) 6000MT/s (KF560C40B) Graphics Card #1 ROG Strix 3090 Ti LC OC Sound Card SupremeFX Monitor HP ZR30w Storage #1 Seagate Firecuda 530 1TB CPU Cooler EK Quantum Velocity2 Case Thermaltake Tower 900 Power Supply EVGA Supernova 1600 T2 Keyboard ROG Falchion NX / Strix Flare II Mouse ROG Chakram X/Chakram Core/Spatha X Headset ROG Delta S Animate Mouse Pad Steelseries Prism XL + ROG Scabbard II OS Windows 11 Home Accessory #1 2x Swiftech Maelstrom X300 D5 V2 Accessory #2 2x Hardware Labs SR2 560 MP radiators Accessory #3 Lamptron FC-5 V3 fan controller 
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Hi Brian72
Try shutting down your pc and turning off the psu switch for a few seconds, turn it back on and see if things return to normal.
Normally, psu's have protection against this.
Could try reflashing the bios if that doesn't help.Last edited by Nate152; 11-23-2021 at 05:26 PM.
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11-23-2021 05:37 PM #3New ROGer Array
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It worked!! Thank you! I hadn't tried unplugging the PSU and switching it off physically, just shut down / restart. Now I need to get my blood pressure back down. Thanks again!
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11-23-2021 05:39 PM #4Moderator Array Nate152 PC Specs
Nate152 PC Specs Motherboard ROG Strix Z690-F Gaming WiFi Processor i7-12700KF Memory (part number) Kingston Fury Beast 16GB (2x8GB) 6000MT/s (KF560C40B) Graphics Card #1 ROG Strix 3090 Ti LC OC Sound Card SupremeFX Monitor HP ZR30w Storage #1 Seagate Firecuda 530 1TB CPU Cooler EK Quantum Velocity2 Case Thermaltake Tower 900 Power Supply EVGA Supernova 1600 T2 Keyboard ROG Falchion NX / Strix Flare II Mouse ROG Chakram X/Chakram Core/Spatha X Headset ROG Delta S Animate Mouse Pad Steelseries Prism XL + ROG Scabbard II OS Windows 11 Home Accessory #1 2x Swiftech Maelstrom X300 D5 V2 Accessory #2 2x Hardware Labs SR2 560 MP radiators Accessory #3 Lamptron FC-5 V3 fan controller
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You're welcome,
Good to see it was an easy fix.
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