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Case fan connections

Hakan

57 months ago

Apologies if this has already been posted (as all cases, mobos and fans are different - my ignorance has lead me to start a new thread).

Sooo...

Total newbie - really, TOTALLY NEW!

Have tried to be a money saver and bought parts lower than RRP through a lot of patience. The patience is starting to wear thinner now I'm building.

All parts are in an the power side is the part I didn't expect to slow me down...

To summarise and be concise:

MOBO: Gigabyte GA-970A-UD3P ATX AM3+ Motherboard CASE: NZXT Source 210 Elite (White) ATX Mid Tower Case PSU: Corsair CX 500W 80+ Bronze Certified Semi-Modular ATX Power Supply

Everything is in place bar the power cabling.

So the NZXT has 2 case fans, both different sizes.

Both have 3 pin connectors and male and female molex connectors.

The mobo has sockets for a 3 pin SYS_FAN and 4 pin SYS_FAN. It also has a 3 pin PWR_FAN

I've read about daisy-chaining the molex cables, I've read about using both SYS and PWR sockets for case fans, I;ve read about plugging one case fan directly into the PSU (although I lose some fan control) and I've read about burning out your system by doing in all incorrectly... :(

I'm almost tempted to buy a bog-standard 4 pin case fan and just use the the SYS_FAN sockets on the mobo.

I bet this is a lot less complicated than my old head is making it out to be!!!

Any advice will really be appreciated :)

Thanks folks.

Comments

  • 57 months ago
  • 1 point

Just plug in your case fans through the molex connectors if you don't mind having them on full blast. Otherwise, just plugging the case fans in the sys_fan plugs. 4-pin means nothing except you get extra features such as pwm control and fan speed reading.

  • 57 months ago
  • 1 point

Thanks very much for your prompt response John; that said have a few more questions and a few comments I've found on the net that may add to other people's similar questions.

It appears my options are:

Connect both 3 pin fans to the PSU and leave it on full power. Connect one to the PSU and the other to the 3 pin SYS_FAN Each fan comes with a 3 pin connector and male and female molex - can the m and f molex be connected for cable management (where the 3 pin will be used)? I get mixed info on the PWR_FAN 3 pin connection. Some say it's for the fan on the PSU and a brand leader on building a pc says you can use this for the case fans?

I'm not a heavy gamer so perhaps I'll just plug a 3 pin into the mobo and one into the psu. That said, a 4 pin case fan is circa £5, so I'm not fussed in investing in one and not plugging directly into the PSU...

Thanks again :)

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