Jump to content

Externally powered usb hub killed computer?

MinerModi
 Share
Posted

Hello so I actually already made a post about what happened to my pc so im sorry for having to make another one but i remebered something. So basically i have this cheap 4 usb port hub that cane be powered externally. I have had this usb hub for months now but i never had an appropriate power plug to have it powered not up until last month when i came across a spare  one. So i immediate plugged the plug in to the socket turned on my pc plugged in my yet unpowered hub and then it happened.

As soon as i plugged in the power cable into the hub the pc shut off and wouldnt turn on again so i thought of the cmos and decided to reset it and then it turned on for a few seconds and turned off again so when that didnt work i tried fully replacing it and the same thing happened when even that didnt work i suspected my brand new power supply so i tried another one to no avail. This got me really worried i replaced the thermal paste on my cpu replaced the ram but still nothing works. I am afraid this might have fried something on my motherboard but i needed to make sure and also i font know if this helps or not but after every major change i do to the motherboard like reseating a cable or something or resseting the cmos it would turn on for 2 seconds and then turns off again. Also after turning off permenantly any connected device would still recieve power through the usb ports.

PC SPECS:

I3-4150

8GB Ram

FSP Hydro G 850 W modular power supply 

Rosewill fbm 01

15028106374771378420784.jpg

1502810666488518059798.jpg

1502810730333340937183.jpg

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Sounds to me like you shorted out your PC. A USB Hub should not have external power like that (least not to my knowledge). Sound like one of the USB Killers just with the added step of a wall plug

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

Powered USB hubs are normal. 

Looking at your pictures it looks like you swapped polarity on the power in and thus have +5V on the gnd pin of the USB to the PC.

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

its a usb killer in disguise 

Favorite Threads: PSU Tier List

 

My Stuff n' Things

Spoiler

The Beast (My Rig)   |CPU: AMD Ryzen 9 3900X|  |Cooling: Enermax Liquimax III, 6x 120mm Noctua Redux|  |Motherboard:  MSI MPG B550 Gaming Plus|  |RAM: 4x32gb 3200 G.Skill TridentZ NEO|  |Graphics Card: EVGA(RIP) GeForce RTX 3070TI FTW3|  |Power Supply: Corsair CX-M 750W|  |Case: Corsair 4000D Airflow Mid Tower Case(Black)|  |SSD: 1Tb WD BLACK NVMe, 500gb NVMe, 1Tb Samsung 850 EVO|  |Monitor: MSI Optix MPG341QR 34" Ultrawide|  |Keyboard: Logitech G815|  |Mouse: Logitech G203 LIGHTSYNC|  |Audio Interface: FiiO K7 DAC/Amp|  |Headphones: Sennheiser HD6XX|  |Webcam: Logitech C920, Logitech C270|

 

My Network Rack  |Switch: Cisco Dell PowerConnect 5548P|  |Router: Unifi USG|  |Rack: 12U|  |Server: HP Z420|  |Services: Proxmox PVE, Wireguard, Pihole, NVR, NAS|

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
  • Author

So do you think the pc is enirely dead?

If so would the ram or cpu still work?

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
13 minutes ago, MinerModi said:

So do you think the pc is enirely dead?

If so would the ram or cpu still work?

maybe they are alive but you need to test  on another  motherboard

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing CPUs, Motherboards, and Memory

×