There are 4 fans:
1) Attached to the back of the tower is the now not-working ~3x3" fan 2) The sound card GPU has a working fan (attached to the GPU) 3) The motherboard CPU has a working fan (attached to the CPU) 4) The power supply has its own working fan also (inside the power supply)When I added a few disks and cleaned out the dust inside, I disconnected all the SATA power cables and bought af Molex-to-SATA adapter, where, when I put it all back together and powered it up, the main #1 fan above isn't working anymore.
I've been using the computer for a few days without that main fan. Googling for how to check the temperature, I installed and ran Speedfan.Exe with the side cover removed. I think the only tab in Speedfan.Exe that is useful is "Readings".
- Fan1: 0 RPM, Fan2: 1236 RPM, Fan3: 0 RPM, Fan4: 0 RPM, Fan5: 0 RPM
- GPU: 73C, Temp1: 45C, Temp2: 29C, Temp3: -2C, Temp: 0C
- HD1: 43C, HD2 44C, HD0: 40C
- Core 0: 37C
The only thing I see 'wrong' perhaps is that the graphics card has a 6-inch set of black and white twisted wires that aren't connected to anything on one end as shown below.
I don't remember if that set of wires was connected or not, so I left it unconnected. Plus, why would a graphics card control the "main" fan anyway?
The motherboard & graphics according to CPU-Z from cpuid.com are:
- Gigabyte Technology Co. Ltd., Model EP43-UD3L
- Nvidia GeForce 8500 GT, ASUSTek Computer - GPU Temperature 73.0C
- Fan Speed 40%
The fan seems to only have two wires going to it which come from a Molex connector with original pigtails, so the fan has power I'm pretty sure (I haven't taken it out yet becuase I think the two wires coming off the graphics card are what caused the fan to stop.
Any advice for what makes the main #1 span spin? (Could it be the twisted pair of wires coming off the graphics board?)
If the machine runs without the fan, will it shut off when it gets hot?