Issues escalating to additional complications (GPU, power supply, etc.) Likely minor short circuit
Issues escalating to additional complications (GPU, power supply, etc.) Likely minor short circuit
This setup seems incorrect. Using a PCI-E 8-pin in an EPS 8-pin socket doesn't match their design. You'd need to insert the right cable to avoid damaging the board. Both images show mismatched connections, which could harm components. The graphics card should connect via its own 8-pin EPS/EATX port, not daisy-chained with the PSU. In the first image, the power cable goes directly to the ATX, then to the graphics card—this is fine. In the second image, the PSU connects to the ATX, then to the PCI-E cable on the card, which is also correct. Make sure each component uses its proper pin configuration.
I'm not aware of any nearby PC repair shops or parts stores. You might want to check online directories or ask locals for recommendations.
Everything proceeded naturally without any issues. It would have been better to state clearly that nothing was forced. As expected, the PSU includes safeguards to prevent damage, which is logical. The cables used were as follows: one (IMG-2459, 8 Pin EPS-CPU) went into the motherboard, while the other (IMG-2461, 6 Pin PCI-E) was connected to the PSU. The third cable (IMG-2460, 8 Pin PCI-E) linked the CPU to the GPU. To confirm their functionality, testing both the motherboard and GPU individually would be necessary.
I also used Canada Computers for purchasing parts and some nearby repair shops. It would have been helpful to remember I booted it in various formats using a different USB port each time, but none of those attempts caused the keyboard to respond. A new keyboard was tested on my laptop to confirm functionality.
Review the pin-out diagrams I shared earlier and examine the 8-pin blocks for PCI-E 8-pin and the 8-pin EPS-12V. You’ll notice the square and beveled pins are arranged in a specific sequence; therefore, you can’t connect an 8-pin PCI-E into an 8-pin EPS, or vice versa. In short, a square connector won’t fit into a beveled or hex hole unless you force it. The PCI-E 6+2 design allows flexibility—either as a 75W PCI-E 6-pin connector or a 150W PCI-E 8-pin connector. An 8-pin EPS CPU isn’t meant to fit into an 8-pin PCI-E GPU. Instead, the correct setup is: 8-pin EPS → 8-pin EPS on the motherboard, then 8-pin PCI-E → 8-pin PCI-E on the graphics card. You should be able to send it to Canada Computers for troubleshooting or diagnostics. I’m not sure what they’d charge you, but Memory Express helped confirm a dead CPU for $30 a few years back... Based on your keyboard issues, the motherboard might be faulty. However, a full check at Canada Computers would be wise. If you short-circuit a motherboard, it could also harm the CPU and RAM modules, which draw power through the 24-pin and 8-pin cables. For the most comprehensive evaluation, consider bringing a working system over and swapping components one at a time. If you don’t have another system or someone to assist, take your hardware to Canada Computers for testing. Try replacing the graphics card, RAM sticks, CPU, or even the motherboard itself. Test the PSU with a fully functional system. Does it work?