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Corsair H100i Not Correctly powered ?


Nanako
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Hello, i've had my Corsair H100i for about six months now. I had some problems with the first one (dead pump on arrival) and had to RMA it, the second one has been working fine, i think. At least, it cools the CPU, and i didn't fiddle with it much once i got that working. After the fuss with the previous one i was happy to just plug it in and forget about configuration

 

I've recently replaced my motherboard for unrelated reasons (The new board, and all other system specs, are in my system specs here on the forum, i just filled it out)

I've got the cooler installed again, it seems to work fine, but after some time, i'm growing tired of the noise. I don't know if there's been any recent change, or whether this problem happened when i first got it.

 

The pump is plugged into the CPU_FAN header on the board.

Here's an image of my board: http://ingvarr.net.ru/img/2013/07/15-2/gigabyte_990fxa_ud3_rev4_1.jpg

Sorry for the low resolution, its hard to find a good image of revision 4

The header in question is visible on the upper middle, it has 4 pins which i think is a little unusual for a cpu fan header

 

Currently:

The fans on the radiator are running at 100% constantly

The LED on the cooler pump is not lit up

The CPU Fan speed shows as 0 RPM in the bios

The cooler does not show up in Corsair Link: https://i.imgur.com/Cu39wZC.png

 

 

 

From what i've read here, these problems are possible indicators of the pump failing, or not getting enough power.

I've only started messing with this more deeply a few days ago, so i can't tell whether these are new problems or existed since i got it. Although i am reasonably confident that the pump LED was lit up at some point in the past

 

Despite all of these issues, the cooling system is performing its main job just fine - Cooling the CPU. The CPU temperature idles around 16 c (Room temperature basically, my house is cold) and reaches just over 50 celsius running for a week straight under maximum load (crypto mining). This is an exceptionally hot CPU and i know from past experience that if the cooler had failed, the system would overheat and shut down within five minutes.

The hoses are warm and vibrating slightly, i'm sure liquid is flowing through them

There's no question about its cooling ability, and from that i'd say the pump has to be functioning to at least some degree.

 

But these problems mean i can't control it, and possibly hint at some underlying issue. Right now i want to have control over the fan speed so i can make it go quieter

 

Please help me work out what might be wrong, and what to try doing.

Edited by Nanako
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Have you looked in Device Manager for the Corsair USBxP Driver and tried resetting that?

 

Without the CPU Fan speed (which is 1/2 of pump speed), it's hard to say for certain if it's getting enough power ... but it's unlikely. The CPU Fan Header (and 4-pin is not unusual at all) should be set to 100% power in your BIOS. So make sure that you have that set. If your motherboard has software for control that runs in Windows, you may also need to disable that or set it to 100% in that software as it would override anything that you set in the BIOS.

 

Finally ... the fans running at 100% is actually more indicative of the pump getting enough power. But what kind of fan are you using? Is it the stock fans or did you add custom fans to the pump?

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Have you looked in Device Manager for the Corsair USBxP Driver and tried resetting that?

No such device is listed there.

From a little research, i surmise it's supposed to be under USB controllers? But it's not there

https://i.imgur.com/IfJ7CEE.png

 

The internal usb cable is plugged into one of those F_USB headers on the bottom of the board image in the OP. I've tried all three headers with no change.

 

The CPU Fan Header (and 4-pin is not unusual at all) should be set to 100% power in your BIOS. So make sure that you have that set.

I'm unsure of how to do this for a gigabyte board. I've attempted to do it by disabling all fan control things in the bios, but it doesn't seem to have had an effect.

 

is there a guide or advice anywhere on how to accomplish it?

If your motherboard has software for control that runs in Windows, you may also need to disable that or set it to 100% in that software as it would override anything that you set in the BIOS.

no such software, afaik. i've never installed anything except speedfan yesterday for testing, and that's not currently running. setting all the controls to 100% doesnt make a difference

But what kind of fan are you using? Is it the stock fans or did you add custom fans to the pump?

the fans on the radiator are just the two stock corsair fans which came with the cooler

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Let's make sure ... which "flavor" of H100i do you have? I've been assuming the H100i v2 (http://www.corsair.com/en-us/hydro-series-h100i-v2-extreme-performance-liquid-cpu-cooler). Is this the correct cooler?

 

Disabling fan control does (typically) have the result of setting the fan to full speed. But as for specifics unique to your motherboard ... they are all different. Your manual and/or vendor is a better source. That said, you should have it set.

 

Something else to try ... if you have a standard mini-USB to USB-A cable, you can use that ... plug it into the cooler, router it outside the case and plug into a rear USB port.

 

With that said, if those fans are running at full speed, that's leading me to think that the microcontroller has gone out. The pump itself is fine (and working, obviously). But (assuming the H100i V2) the pump has a default fan curves that keeps it from running at full speed unless the cooler is super hot and your CPU temperature doesn't indicate that this is the case.

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Let's make sure ... which "flavor" of H100i do you have? I've been assuming the H100i v2 (http://www.corsair.com/en-us/hydro-series-h100i-v2-extreme-performance-liquid-cpu-cooler). Is this the correct cooler?

Ah good point, no it is not. The one i'm using is the Corsair H100i GTX, factory refurbished

https://www.scan.co.uk/products/corsair-hydro-series-h100i-gtx-240mm-high-performance-multi-cpu-liquid-cooler-with-corsair-link-for-

 

Disabling fan control does (typically) have the result of setting the fan to full speed. But as for specifics unique to your motherboard ... they are all different. Your manual and/or vendor is a better source. That said, you should have it set.

I'll look into this. any idea how to test whether i've done it right or not?

 

Something else to try ... if you have a standard mini-USB to USB-A cable, you can use that ... plug it into the cooler, router it outside the case and plug into a rear USB port.
Might have one, and if not it'd be extremely cheap to buy one. Ill get one, test this, and report back

 

With that said, if those fans are running at full speed, that's leading me to think that the microcontroller has gone out.

This would be unfortunate. If that's the case then i'd have to return it or somesuch?

 

It's been a little over six months now. Second cooler recieved 8th august 2017

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I think that's pretty much the same as the H100i V2, just a different name.

 

Question: you don't have a SATA connector do you?

 

I don't, not sure how this thing could connect to sata.

 

It has....

A wire that runs to a fan header plug, 4 pin

A wire that splits into two fan header pins, for the radiator fans to plug into

A socket for the aforementioned USB cable which connects to a usb header on the board

The two pipes which connect to the radiator

 

no other cables or protrusions, no SATA

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H100i should have a SATA power connector and you should have that connected directly to your power supply. I'm not sure what you mean when saying that you have the pump connected to the CPU_FAN header. The pump should be connected directly into a 12V power supply connector. The other wire from the pump, which only has one wire that connects to a fan type connector, it's there only to report the pump speed back to the motherboard. You don't even need to connect that if you don't want to, but it might be handy to have it connected to a FAN header somewhere (preferably not the CPU_FAN header).

 

On your motherboard you can only control CPU_FAN, and SYS_FAN_1. There is no control of SYS_FAN_2 or PWR. No software can control SYS_FAN_2 or PWR fan on that board.

So you should have the radiator fans connected to the CPU_FAN header so you can control them via software. Gigabyte uses a software called Easy Tune 6 which gives you control over the CPU_FAN header and you can adjust the radiator fan speeds accordingly.

 

https://www.gigabyte.com/us/Motherboard/GA-990FXA-UD3-rev-40#support-dl

 

The LINK problem you are having, I suggest uninstalling it and installing again the latest version. You can also try this workaround: http://forum.corsair.com/v3/showthread.php?t=117575

If that doesn't work, then yeah, the AIO controller might be stuffed, but if you do the above, you don't even need LINK for anything. The pump should be running at 100% and the radiator fans you can control them via the motherboard software.

Edited by aceisme
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I'm not sure what you mean when saying that you have the pump connected to the CPU_FAN header.

Exactly what i said :P

 

http://www.corsair.com/en-eu/blog/2015/march/h100i_gtx_how_to

 

Seems the GTX is setup differently from what you're used to

 

On your motherboard you can only control CPU_FAN, and SYS_FAN_1.

So you should have the radiator fans connected to the CPU_FAN header so you can control them via software.

 

This may be a viable solution, i have a fan splitter in there somewhere already, i can move it around and figure that out

The LINK problem you are having, I suggest uninstalling it and installing again the latest version.

already tried this

You can also try this workaround: http://forum.corsair.com/v3/showthread.php?t=117575

This only applies to v2 of the link software, i'm using v4 and the instructions don't make sense. Doesn't seem like it'll help anyways

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H100i should have a SATA power connector and you should have that connected directly to your power supply.

The H100i has SATA, IIRC. He's got the H100i GTX. That ... and the H100i V2 ... does not have a SATA connection; it is powered from the fan header.

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I don't, not sure how this thing could connect to sata.

 

It has....

A wire that runs to a fan header plug, 4 pin

A wire that splits into two fan header pins, for the radiator fans to plug into

A socket for the aforementioned USB cable which connects to a usb header on the board

The two pipes which connect to the radiator

 

no other cables or protrusions, no SATA

 

OK ... I was making sure. There are ... I think ... six different variations on the H100. Some have SATA power. I can't always keep them straight.

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I'll look into this. any idea how to test whether i've done it right or not?

Well ... typically pump speed and/or fan speeds will tell us. You have neither. that said, if your fans are running at full speed, they are likely getting the 12V power. I'm inclined, at this point, to think that you do have it powered correctly.

 

Might have one, and if not it'd be extremely cheap to buy one. Ill get one, test this, and report back

OK. If it works, then you either have a bad cable or a bad USB port. If it doesn't, i think we're looking at a bad microcontroller. Since the fans are running at full speed, that's actually where I'm leaning right now.

 

This would be unfortunate. If that's the case then i'd have to return it or somesuch?

 

It's been a little over six months now. Second cooler recieved 8th august 2017

You'd have to do another RMA. I don't know the policy for RMA'ing an RMA replacement cooler.

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The H100i has SATA, IIRC. He's got the H100i GTX. That ... and the H100i V2 ... does not have a SATA connection; it is powered from the fan header.

 

The OP says Corsair H100i not H100i GTX, hence the reason I mentioned SATA cable. If it's mentioned somewhere else, I must have missed it. Regardless, the pump connector should be connected directly to a 12V source from the power supply instead of a fan header. It is more reliable and it eliminates any user and BIOS errors. I don't know why Corsair didn't use a SATA power connector on all AIO's. It's a much better solution.

The radiator fans should be connected directly to the CPU_FAN header not to the pump headers. That way you will not require LINK software to control them.

Edited by aceisme
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This only applies to v2 of the link software, i'm using v4 and the instructions don't make sense. Doesn't seem like it'll help anyways

 

If you connect the fans directly to the CPU_FAN header, you don't need LINK software anymore. If LINK is something you must have, then you might need to do another RMA, but remember to take shipping costs in consideration. All up it will be almost 3Kg in weight.

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