tralnon Posted June 24, 2014 Share Posted June 24, 2014 Well, first let me start with the usual- processor- Intel core i7 4820-k cpu cooler- Corsair H100i motherboard- ASUS Rampage IV Black Edition Alright, so the problem I noticed is that every time I turn on my machine it will give me a cpu fan failure after POST and ask me to go into the bios. Now, when I do this it registers the pump running between 2100-4000 rpm. When I exit everything starts like normal. I have been noticing that two of the other chassis fans are coming in at 600 rpms or lower, but they're plugged into the other fan ports. Is this something I should really worry about, and is there anything I can do stop it registering as a cpu cooler failur? I know the pumps running because it hasn't gone above 38 C in idle and it's kind of hot down here in the south. Link to comment Share on other sites More sharing options...
LangZone Posted June 24, 2014 Share Posted June 24, 2014 It's possible that the motherboard isn't giving the pump full power for a second on boot. Make sure that the cpu fan speed is not on auto but always 100% or "full" in the bios. Link to comment Share on other sites More sharing options...
HOODedAssault Posted June 24, 2014 Share Posted June 24, 2014 You could disable monitoring of the cpu fan header in bios. BUT I would only do this if your mobo has a speaker and you turn on temp warning for you cpu in bios. Or use some kind of software to warn you if you temp passes a certain point within windows. Not sure if realtemp has a warning system. Don't use Ai suite tho if you on asus. It'll pop up every couple min because it's glitchy. Or run the pump straight off psu with an adapter or off a fan controller which would allow you to monitor rpm. Link to comment Share on other sites More sharing options...
tralnon Posted June 24, 2014 Author Share Posted June 24, 2014 Sounds like a plan, thanks for the advice. Haha, I work on computers all the time, but it's the first one I've ever built from scratch. Link to comment Share on other sites More sharing options...
LangZone Posted June 24, 2014 Share Posted June 24, 2014 Good luck. Keep us updated either way. Link to comment Share on other sites More sharing options...
tralnon Posted June 29, 2014 Author Share Posted June 29, 2014 alright, so here's the update: Went into the bios and looked at the fan controller settings. Auto was set for the CPU Fan so that the "Q Controller" or whatever could manage it. I did not see a full power option but I think I saw a turbo. Whichever other one there is besides Auto and Disable. haha It seems to have resolved the issue because after I turned it off and let it sit for a few minutes it booted back on without the error. The other two chassis fans were still red though, so I'll have to play around with it at some point. Either way, the main issue was fixed. I appreciate all the help. On a side note, apparently you're able to run the radiator fans off of the pump directly, but the L cable that came with the cooler is, well.. uesless for that. the fan connection ends are male connectors as well. I assume that's normal, so not sure about that. Link to comment Share on other sites More sharing options...
davidhumphrey Posted July 2, 2014 Share Posted July 2, 2014 are you plugged into the cpu_opt fan, or cpu fan ? When I had mine plugged into the cpu_opt connector, I had the same failure on every post. Link to comment Share on other sites More sharing options...
wytnyt Posted July 2, 2014 Share Posted July 2, 2014 your hydro tach lead must be connected to cpu_fan to avoid the fan error. Link to comment Share on other sites More sharing options...
JKeifer Posted July 2, 2014 Share Posted July 2, 2014 It's possible that the motherboard isn't giving the pump full power for a second on boot. Make sure that the cpu fan speed is not on auto but always 100% or "full" in the bios. Just an FYI. The pump gets its power directly from the power supply's SATA connector and not the MB. The pump's connection to the MB is a tachometer wire only that is used by the MB to assess the RPM of the pump. I'd look into the bios setup to make sure that the CPU fan is set to monitor the lowest possible RPM which, with my ASUS MB, is around 200 RPM. Link to comment Share on other sites More sharing options...
snapper69 Posted July 3, 2014 Share Posted July 3, 2014 Quote: "On a side note, apparently you're able to run the radiator fans off of the pump directly, but the L cable that came with the cooler is, well.. uesless for that. the fan connection ends are male connectors as well. I assume that's normal, so not sure about that". The fans are connected to the Y splitter cable, which comes with a cover on the fan end to avoid short circuits. Link to comment Share on other sites More sharing options...
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