Have you just overloaded your hardware?
Have you just overloaded your hardware?
I just completed a PC build and everything seemed okay. I installed Windows 10 and applied all the updates smoothly. Then I added three fans to the front and back of the case. I suspect I might have installed them incorrectly, which is why the PC won’t power on. Here’s what I did: the CoolerMaster case fans use a PWM cable with three female connectors, and I linked them to the motherboard. I also connected an extra PWN cable extension to the rear Apevia fan. The fans came with both a PWN and a Molex power cable, so I used the latter for the rear fans and the former for the top ones. Everything was wired to the SysFan header on the motherboard. Could this setup risk damaging the system or at least cause problems? Why isn’t the machine turning on now, even after removing the Apevia fans?
You might risk damaging your motherboard or power supply by sending power through data lines. Please share a photo of the connection points if you need help understanding it.
I understand this might be a bit confusing. In short, I connected the fans in a series using PWM signals from the case and Molex connectors on the fan wires themselves.
Three fans are connected in a series, sharing power from a single cable or each fan has its own wiring from the same source?
This setup is really confusing, and a visual would make it clearer. It seems like fans are linked together, connecting to both the board headers and the power supply via Molex. I'm not sure it would create a short circuit, but I wouldn't try that. *Note: After reviewing the OEM documentation, I understand the layout better.* You're using multiple fans but only have one SYS_FAN and one CPU_FAN header. So you connected several fans together, drawing power from a 12V fan header and the PSU's Molex connector at the same time. Molex leads should connect to fans, then to the header, and finally to the PSU. If that's the case, it's possible your PSU got shorted. Try disconnecting it from everything except the wall and test with a paperclip. Your board might be damaged. In short, avoid overloading fan headers—consider using a SATA-powered hub instead.
Did you link the fans to a splitter or set them up in a daisy chain? Daisy chaining involves having both input and output points so the signal can move to another part of the system. More devices in a circuit usually raise the power usage from the power supply unit. Your PSU might have switched to protection mode. As advised, unplug it for 10-15 minutes, then reattach. If your PSU has a switch, turn it off briefly to reset and back on. It seems unlikely you damaged anything by connecting the fans improperly. You likely activated a protection feature and need to reset it.
All five fans are linked together in a chain and linked to the motherboard via a SYSFAN header. Two CoolerMaster case fans are hooked up using a PWM cable with an extra unused PWM extension. I utilized that unused slot to attach one Apevia fan, which also features a molex connector—so I connected the remaining two fans using molex. The power supply remains separate from these fans.