• Might have burned my PC. Please help!
    6 replies, posted
So I am building my new PC, and google said that I need to connect my (fine-working before) fans to CHA_FAN on the mobo. I had one cable with TWO molex outputs from my PSU complect from both, so I just connected the 4 pin from it. After I turned the power on there was a huge spark and a loud BAM sound from my PC. After waiting for some time my pc refused booting for the first time, booting normally for the second time, saying "Overclock failed" Now after a couple reboots it works fine (I still have my keyboard not being detected by BIOS, but that's a different story). So, what can be the consequences of my actions? All parts seem to be fine
Its not uncommon for power supplys to produce loud noises and make sparks when you plug in the power cable or switch them on. If your pc is working properly now i dont think you should worry. Also for the keyboard, try diffrent usb ports. Or a ps/2 keyboard ans turn on usb legacy mode in the bios.
[QUOTE=superstepa;34303053]So I am building my new PC, and google said that I need to connect my (fine-working before) fans to CHA_FAN on the mobo. [b]I had one cable with TWO molex outputs from my PSU complect from both, so I just connected the 4 pin from it.[/b] After I turned the power on there was a huge spark and a loud BAM sound from my PC.[/QUOTE] Can you better describe what i bolded above? I am reading it as you somehow attached a molex connector to the CHA_FAN connector on the motherboard. Also describe where said spark was located. Computers should not spark or anything when they are functioning normally.
[QUOTE=Zah;34324136]Can you better describe what i bolded above? I am reading it as you somehow attached a molex connector to the CHA_FAN connector on the motherboard. Also describe where said spark was located. Computers should not spark or anything when they are functioning normally.[/QUOTE] My PSU had a cable with molex inputs/outputs and a 4-pin input which I have connected to mobo The funny thing that the PC works perfectly fine, I am playing SR3 on it now
[QUOTE=superstepa;34330664]My PSU had a cable with molex inputs/outputs and a 4-pin input which I have connected to mobo The funny thing that the PC works perfectly fine, I am playing SR3 on it now[/QUOTE] I think you still did damage your motherboard, so it's something to keep in mind. if the 4 pin connector was on the same cable as a couple molexes, that was (i'm 99% sure) a floppy drive power connector not an 'input'. The rare psu that i have seen that did have some sort of fan connector had a 3 pin on its own separate cable. Unless this was specified by the PSU's manual...
If you have a case fan, or any type of fan for that matter that has both a molex power connector and a 3 pin riser for the motherboard power, DO NOT plug both in at the same time. Some PSUs have a 3 pin fan connector, which is for telling the motherboard the speed of the fan inside the PSU. You should never attempt to apply power to that cable. Whatever exploded probably saved the rest of the system from getting fried, but there is still irreversible damage.
[QUOTE=bohb;34333537]If you have a case fan, or any type of fan for that matter that has both a molex power connector and a 3 pin riser for the motherboard power, DO NOT plug both in at the same time. Some PSUs have a 3 pin fan connector, which is for telling the motherboard the speed of the fan inside the PSU. You should never attempt to apply power to that cable. Whatever exploded probably saved the rest of the system from getting fried, but there is still irreversible damage.[/QUOTE] This is why if you're not sure you need to read the manual for the psu to see what shit is what.
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