the older motherboard stops working with usb right after powering up for a short time
the older motherboard stops working with usb right after powering up for a short time
The motherboard is an LGA 1155 model that came with a used computer I acquired early in my journey to build a gaming PC. It was affordable, featured an i7 2700K processor, and likely had a graphics card—my current one is a 7870. It wasn’t a fully prebuilt budget internet machine, and it performed reliably throughout. I lent it to a neighbor who attempted to mount the Wi-Fi dongle outside and connected the USB extension cable I provided for stronger signal coverage (since everyone shares the same Wi-Fi, he was upstairs with the router). Unfortunately, the USB port on the back panel was damaged; the pins probably shorted, causing all serial devices like the keyboard to stop working. Despite this, the system booted normally and, within a short time, the mouse would move if you waved it. Now I’m unsure whether it’s beyond repair or if I could fix it myself using my soldering iron. The pins appear bent away from the socket, suggesting they weren’t shorting, but the USB plug was pulled out and stuck in the cable end. I’ve switched to another motherboard, which is functioning correctly with the same components, including the power supply. This suggests the issue might be with the USB 5V power supply rather than the board itself.
Have you ever done micro-soldering? It might be a fun project if you're interested. If the PCIe slot isn't working, you could remove and reinsert it using replacement cards. This would mean buying the cards cheaply, otherwise you might end up spending more than needed just to get a new system. Edited August 28, 2022 by Bombastinator
Technically it functions as a hobby project, simply performing tasks without any further purpose beyond sitting on the shelf. I've tried soldering small SMT parts both unsuccessfully and occasionally successfully over the years, but never with a true microsoldering experience. The system had a graphics card, suggesting PCIe should work, though running keyboard functions would require an expansion card. I could always look for deals on eBay or AliExpress.
I accept that but my equipment isn’t up to the task. There are folks here with deeper expertise in microsoldering. An adjustable wattage iron and precision tips really help. I favor wicks instead of those bulky vacuum irons for desoldering since they feel more natural. Mostly I fix broken USB ports and tinker with older Macs that keep losing their connectors. It’s just minor stuff.