CPU Fan Error - Mystery cable

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Joined
14 Jul 2012
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8
Hi guys,

The short story is i'm trying to install a Raijintek Juno Pro ADD cooler on my cpu (i7 3770k). When i first booted up BIOS warned of a CPU FAN Error, due to the rpm being below 600. I set the warning threshold to 200 which stopped the warnings, but once windows booted up i saw the cpu temps are around 90-100C.

I'm guessing I either haven't set it against the cpu properly (it was very fiddly to install), or it's something to do with this extra connector it has. It has a normal 4pin fan connector which i've connected to the CPU_FAN header, and another one that I don't recognise with a little label on it that says "V5". I assumed it was something to do with the RGB lighting and so not important, but maybe it is?

The really long story, for those interested, is that my radiator leaked a bit and i only noticed because the PC started rebooting randomly. I removed all the water cooling parts and ordered a cheap cpu cooler so i could at least turn it on and try to work out which parts were broken. Of course that's turning out to not be so easy, as i had to remove the "thermal armour" (stupid asus sabertooth motherboard) just to fit the cooler on, and it's still not working properly. I suppose there is also the chance that water has irreparably damaged the motherboard which is causing the temp issue.

Would greatly appreciate any suggestions!
 
The other plug will be for RGB and can be ignored.

If the CPU temperature is anyway near that high and the fan isn't maxing out then there's a problem there. Check where it's plugged and how that fan header is configured in the bios.

The reason for the high temperature is likely to be the mounting. Redo it and make sure you didn't accidentally leave any protective covers on the base of the heatsink.
 
Thanks for the advice, I'll ignore the extra connector for now. I removed the cooler and the setting looked fine, but I screwed it up trying to replace it so I'll have to wait for some more thermal compound to arrive by post now.
 
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