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H100i GTX CPU Temp and Speed


SlackerKing

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Hi all,

 

I just completed my new build using an Air 240 and H100i GTX and while everything looks sharp my temps (in BIOS) are worrying me.

 

The cooler is set up on the front of the case with the fans on the back side of the radiator pulling air into the case. In other words, my fans aren't between the radiator and case.

 

I've also swapped out the factory fans with two Jet Flo 120's because I wanted a red glow. Also, I have 1 Jet Flo in the top of the case as an exhaust and 1 in the bottom, as an intake.

 

When I first entered BIOS I started out with a temp of 45c and it raised to 49/50c and stayed there. This may be because I had my Intel back plate rotated the wrong direction, which I have since corrected, but not tested.

 

My CPU fan speed was ranging between 350-750 rpm and would jump to 1000+ every now and then. Even after I set the fan speed to "full". The other chassis fans, also Jet Flo's, are running around 1600 rpm and are moving a lot of air.

 

I then applied a BIOS update and when I came back in the CPU fan was disabled, but the actual fans were still running and I was showing the same temps.

 

My questions are as follows:

 

1. Is it better to have my radiator fans pushing through the radiator into the case or pulling the air from the outside through the radiator? Or does it matter?

 

2. Should I have stuck with the factory fans? I think the Jet Flo's are air flow and not static. What are some good, quiet static air flow fans with a red glow?

 

3. Should I worry about BIOS fan speeds, since Corsair Link, which I haven't installed yet due to not having Windows installed, will control the fans?

 

My goal will be to OC the chip, which is a 6700K, to around 4.6 to 4.7. I've seen similar builds to mine hitting 33c idle and 50-60c under load.

 

Let me know if you need more info.

 

Thanks,

Slacker

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Hi Slacker,

 

1. Pull is a bit more quiet, push will give You a bit better performance (1 °C).

2. Jet Flo´s are ok for the radiator use (95 CFM, 2.72 mmH2O). If You will be not satisfied with the performance You can add another 2 (push+pull) to get 2-3°C lower temps (not neccessary until You test the cooler with 2 fans!).

3. BIOS is showing You the speed of the fan (one of 2 fans), currently the cooler runs on factory defaults (in my H100i GTX it was silent for the pump and balanced for the fans)

 

When You inside the BIOS your CPU is not using the low power states which are active under OS, so Your iddle temps can be higher under BIOS. Check what are the temps now, after You have installed the backplate properly. Also please make sure that You have the following done properly:

 

1. Connection:

- 3PIN connector of the CPU block to CPU/CPU1 header on MB

- Y connector to CPU block

- 2 x 4PIN fans to the Y connector

- Data cable to CPU block , other end to USB header

 

2. Bios setup:

- CPU fan controller disabled / manual 100% / full speed

 

If You would like to use in the future 4 fan setup please be sure You use a SATA to 4PIN PWM splitter which will power the fans from PSU and will connect fans control wires only to the cooler as You can overload the fan controller of the cooler (the complete cooler should not draw more than 1A from Your MB header).

 

You can fill in Your system spec in Your profile than everyone can see Your HW config.

 

BR,

 

Peter

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1. Connection:

- 3PIN connector of the CPU block to CPU/CPU1 header on MB

- Y connector to CPU block

- 2 x 4PIN fans to the Y connector

- Data cable to CPU block , other end to USB header

 

Should this Y connector go from 4 pin to two 4 pins? The one I have only has a single 4 pin on the Y part. The other is a 3 pin.

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You may want to get Windows up and running and LINK installed before making any expansion plans for your small form factor build. It has been suggested the Asetek coolers cannot be properly monitored through the BIOS and you need LINK or another 3rd party software program to do that. Either way, it doesn't matter what fans are on the radiator or whether they are mounted in push or pull, 45-50C in the BIOS suggests an issue -- either plate contact or the pump is not flowing at the normal rate. You may need LINK to verify the pump speed. The backplate and contact issue you might be able to resolve in the BIOS, but it would be easier to make observations with Windows up and running. I am also assuming you have the radiator fans powered from the H100i pump block.

 

The Jetflo 120 is a hyrbid airflow/pressure design, like most 120mm fans. With a 2000 rpm limit, neither airflow or pressure should be an issue, although I don't know how loud that will be. If you do decide to run push-pull with these, you likely will not be able to run them through the pump block. At 0.4A for each fan, you will have to run them from the power supply or SATA connector as mentioned above, or risk blowing the fan the controller on the GTX. However, that decision is probably better left for later once you get a feel for your system.

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You may want to get Windows up and running and LINK installed before making any expansion plans for your small form factor build. It has been suggested the Asetek coolers cannot be properly monitored through the BIOS and you need LINK or another 3rd party software program to do that. Either way, it doesn't matter what fans are on the radiator or whether they are mounted in push or pull, 45-50C in the BIOS suggests an issue -- either plate contact or the pump is not flowing at the normal rate. You may need LINK to verify the pump speed. The backplate and contact issue you might be able to resolve in the BIOS, but it would be easier to make observations with Windows up and running. I am also assuming you have the radiator fans powered from the H100i pump block.

 

The Jetflo 120 is a hyrbid airflow/pressure design, like most 120mm fans. With a 2000 rpm limit, neither airflow or pressure should be an issue, although I don't know how loud that will be. If you do decide to run push-pull with these, you likely will not be able to run them through the pump block. At 0.4A for each fan, you will have to run them from the power supply or SATA connector as mentioned above, or risk blowing the fan the controller on the GTX. However, that decision is probably better left for later once you get a feel for your system.

 

Well, I have swapped out the Jetflo 120's for some Corsair SP120's and fixed my CPU backplate issue. These are the only 2 fans I will have on the radiator, for now, so I have them connected to the connector on the H100i GTX using a splitter.

 

Now I just need to apply my new thermal paste after cleaning off the old and hook everything else and try again. The thermal paste I bought is Tuniq TX-4. They say it should be spread flat across the entire CPU, but I am not sure if that's better than the pea-sized method or not with this brand.

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Well, I have swapped out the Jetflo 120's for some Corsair SP120's and fixed my CPU backplate issue. These are the only 2 fans I will have on the radiator, for now, so I have them connected to the connector on the H100i GTX using a splitter.

 

Now I just need to apply my new thermal paste after cleaning off the old and hook everything else and try again. The thermal paste I bought is Tuniq TX-4. They say it should be spread flat across the entire CPU, but I am not sure if that's better than the pea-sized method or not with this brand.

 

Hi,

 

The TX4 grease is a thick and a bit hard to spread grease, I would not recommend to use the "rice" sized method. I have done today some testing of another CPU coolers on my system and during removal of the H100i GTX I realised that even the MX4 was not totally spread across the CPU heat spreader (so when mounting back the H100i GTX I have applied a very thin layer of MX4, get 2°C better temps now). This not happened with another 3 CPU coolers I tested today (MX4 spread with the pressure) so I assume that the H100i GTX mount "generates" not so big pressure on the CPU heatspreader than the air coolers did. Be prepared for a bit tougher process to spread the thick TX4 grease. But if You do it properly You will be happy with the results (that grease is one from the better ones).

 

Jet Flo 120

You can use these on the cooler, will cause no problems (and are not louder than the corsair ones). Just keep the power limits as also c-attack mentioned, 2 pieces are fine but for more use the SATA to PWM splitter (akasa is making some). But first, check if Your system runs properly and get into windows to check infos from C Link.

In BIOS You should be able to see idle CPU temps max up to 40°C. My motherboard reports also well in BIOS the fan rpm (not the pump!!!) at the CPU fan section. Don´t forget to set the fan controller to off or manual(100%) or full speed mode to secure continuous 12V fot Your cooler (pump).

 

BR,

 

Peter

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I tried the pea-sized method with the TX-4 my temps are holding steady at 41-42c in BIOS. The M/B Temp also dropped from 32c to 30c.

 

My CPU fan speed in now showing as 1570 rpm with the SP120's, whereas before the Jetflo's were only around 350-750 rpm. The CPU fan is set to high, but it should be disabled in BIOS, so Corsair Link can control it in Windows?

 

Also, once I am in Windows I hope to get better results in Corsair Link. I may need to redo the TX-4 application if I find that the pea method didn't let it spread correctly.

 

EDIT: may have spoken too soon. The CPU temp in BIOS is now at 42.5c and M/B Temp is 32c.

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I tried the pea-sized method with the TX-4 my temps are holding steady at 41-42c in BIOS. The M/B Temp also dropped from 32c to 30c.

 

My CPU fan speed in now showing as 1570 rpm with the SP120's, whereas before the Jetflo's were only around 350-750 rpm. The CPU fan is set to high, but it should be disabled in BIOS, so Corsair Link can control it in Windows?

 

Also, once I am in Windows I hope to get better results in Corsair Link. I may need to redo the TX-4 application if I find that the pea method didn't let it spread correctly.

 

EDIT: may have spoken too soon. The CPU temp in BIOS is now at 42.5c and M/B Temp is 32c.

 

Just checked some sites what "should" be the idle temp for Your CPU in BIOS (I don´t know what board You have). Your temps are high for idle , no OC in bios. Off-cousre some deviation due to ambient temps are present for sure.

http://www.corsair.com/en-us/blog/2015/august/overclocking_i7-6700k

 

Have You checked the CPU block after installation (is it tight, You can´t move it, turn it ...) ? Check also if there is no component of Your motherboard which not allows proper seating (heat spreader, capacitor ...).

 

BIOS - FAN controller

You will just turn off the fan control of the CPU for Your Motherboard. Through the header You are just powering the cooler and getting back fan rpm feedback to avoid shutdown for "no CPU fan present" alert. The fans and pump are controlled through the built in controller (in the cooler itself), this is why You will need the CL (You will find later on SIV more useful - just search for it here on the forum).

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My motherboard is an Asrock Fatal1ty Z170 ITX/ac.

 

Anyways, I got Windows and Corsair Link installed.

 

CL now shows the following:

 

H100i GTX Cooler Pump: 2850

H100i GTX Cooler Fan: 26.1c

Asrock Motherboard Temp: 22.1c

Asrock Motherboard Aux Fan: 1670 rpm

Asrock Motherboard System Temp: 17.2c

Intel Core i7-6700K Temp: 17.3c

Asrock Motherboard Temp 3: 22.0c

Intel Core i7-6700K Loads: 0-5%

Asrock Motherboard CPU Fan: 1605 rpm

 

Some of those temps seem low even for idle, right?

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If You would like to use in the future 4 fan setup please be sure You use a SATA to 4PIN PWM splitter which will power the fans from PSU and will connect fans control wires only to the cooler as You can overload the fan controller of the cooler (the complete cooler should not draw more than 1A from Your MB header).

 

Can I use a SATA powered 4 pin hub to run and control all my fans from the H100i GTX? Would it allow me to control the fan speed for individual fans or would it see all fans as a single fan in Corsair Link?

 

This pin stuff is confusing me. The H100i GTX connects to a 3-pin on the motherboard, but then the other connect is a 4 pin, which I have connected to a Y adapter than ends in one 3 pin and one 4 pin.

 

Don't I need all 4 pins to control the fan speed in CL?

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Can I use a SATA powered 4 pin hub to run and control all my fans from the H100i GTX? Would it allow me to control the fan speed for individual fans or would it see all fans as a single fan in Corsair Link?

 

This pin stuff is confusing me. The H100i GTX connects to a 3-pin on the motherboard, but then the other connect is a 4 pin, which I have connected to a Y adapter than ends in one 3 pin and one 4 pin.

 

Don't I need all 4 pins to control the fan speed in CL?

 

Hi,

 

The Y splitters for 3PIN or 4 PIN fans have always only one output connector populated with the tacho signal wire. So don´t wory about this. (otherwise all fans will report to one controller their speeds and it will result in a mismatch reading, will confuse the fan controller). The H100i GTX has his own fan controller built in inside the CPU cooler block. The Y splitter to connect fans to it should look like:

 

1. Connector what You connect to the cooler should have all 4 wires (pins)

2. First output where You connect first fan should have also 4 wires (pins)

3. Second output where You connect second fan should have 3 wires (pins) where the third (tacho,rpm reporting) wire is missing.

Note: Only one fan speed is reported to the cooler as it has only one fan controller!

 

The H100i GTX cooler is connected to Your CPU header on Your motherboard through a 3 PIN connector, where first two pins are to get the 12V, the third PIN is the tacho (rpm reporting) signal which gives the fan rpm feedback to Your motherboard.

 

To Your previous post. Something is wrong with Your readings, the cooler fan speed should be rpm, You have °C (temperatures). Also Your CPU has lower temps than the CPU cooler what shouldn´t be. Please post screens, best is to use the SIV software what You can find here on the forum (thank goes to red-ray).

 

H100i GTX Cooler Pump: 2850 - looks ok, performance mode

H100i GTX Cooler Fan: 26.1c - here You should have RPM

Asrock Motherboard Temp: 22.1c - can´t comment

Asrock Motherboard Aux Fan: 1670 rpm - this will be one of Your case fans

Asrock Motherboard System Temp: 17.2c - can´t comment

Intel Core i7-6700K Temp: 17.3c - this is to low (what is Your ambient temperature?)

Asrock Motherboard Temp 3: 22.0c - can´t comment

Intel Core i7-6700K Loads: 0-5% - idle CPU

Asrock Motherboard CPU Fan: 1605 rpm - this is the fan speed reported by the H100i GTX to Your MB CPU header. So Your fans are spinning at 1600 (balanced mode i guess)

What is missing from here: H100i GTX Cooler Temp: ?

 

BR,

 

Peter

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Here's the screenshot. As you can see, I did type the incorrect value for the Cooler Fan.

 

My ambient temp is around 17c, as I like it cool in my house, but these temps in the screenshot are a little higher because I have the house heat on right now.

 

My Cooler Fan icon was flashing red this morning when I logged in and showed 0 RPM, even though the fans were spinning on the radiator. I looked in BIOS and the CPU was disabled, even though it wasn't yesterday, and the fan speed set to silent. I bumped it up to FULL for now, so the red flashing would go away, but I will drop it back down more than likely.

 

http://i.imgur.com/a5yYfdo.png

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Hi,

 

That looks strange, the CPU cooler is warmer than the CPU (core or MB sensor). Eventually according this the cooler is not cooling, but heating up the CPU. Something is wrong here. Please try to run the SIV software let´s see what it shows. The 0 RPM on cooler fan ... is a BUG, it happens to me sometimes also (You can keep the CPU fan control on full speed in the BIOS), when it happens I quit the CL software (totally) then I start it again (if not works, than restart and it´s ok). Your pump is set to quiet mode (according the picture), performance mode has around 2800 rpm. Your cooler fans are running in balanced mode. Have You grouped the coolers "temp/fan rpm/pump rpm/led"?

 

BUT, actually You should focus first on that temperature anomaly You have, Your CPU should be a bit warmer than the cooler temp. In iddle it will be a few degrees warmer than the ambient temp. Try the SIV and post us some screens.

 

BR,

 

Peter

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Hi,

 

That looks strange, the CPU cooler is warmer than the CPU (core or MB sensor). Eventually according this the cooler is not cooling, but heating up the CPU. Something is wrong here.

 

Yeah, I agree that it's strange. My ambient is around 20c. I know the thermal paste I used got good reviews of people getting idle temps like mine, but I doubt any of them showed 6c below ambient.

 

Maybe I will contact the mobo maker and see what they think too.

 

Please try to run the SIV software let´s see what it shows.

 

I will try to run it tonight after work.

 

The 0 RPM on cooler fan ... is a BUG, it happens to me sometimes also

 

Do you mean that AUX fan? It was originally showing an RPM, then stopped, even though the fan is spinning.

 

I have both case fans hooked up to a splitting coming off of CHA Fan 1. Should I hook one up to that and the other up to CHA Fan 2 instead?

 

Your pump is set to quiet mode (according the picture), performance mode has around 2800 rpm. Your cooler fans are running in balanced mode. Have You grouped the coolers "temp/fan rpm/pump rpm/led"?

 

You care correct about the modes. I haven't grouped anything, yet. What does grouping do?

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Please try to run the SIV software let´s see what it shows.

 

Not sure exactly what you need to see in SIV, but I posted a few screenshot below.

 

It shows the same CPU temps as as CL does. Well, the temps are in the 11-13c range now, since it's around 15c inside my house now.

 

I ran a brief test with Prime95 and my Motherboard Temp didn't change, but my i7-600K Temp rose from 15c to 50c and the Motherboard Temp 3 rose from 19c to 53c. This is in CL and SIV. When I placed a normal thermometer in the case it showed a case temp of 19c.

 

Let me know if you need anything else.

 

Main Screen

 

http://i.imgur.com/PnDPWaE.png

 

Cooling Status

 

http://i.imgur.com/YeCmksj.png

 

Hardware Status

 

http://i.imgur.com/OUDzWKb.png

 

Sensor Debug

 

http://i.imgur.com/hzWM2za.png

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Hi,

 

Case fan connections:

- One motherboard header can report only one RPM, so if You used a splitter than it reports the rpm of the fan which has the tacho (yellow) wire connected

- If You would like to have rpm of the second fan also and proper control, connect it to the CHA2 header (this is the one which reports currently the 0 rpm in CL)

 

Temperatures (and SIV):

- I have asked for SIV screenshots to see if Your temps will be the same, they are

- You should contact for sure Asrock with your temp issues, I think it´s impossible to have as reality what we see on Your screenshots. Can be also bad sensor in Your CPU, but the core temps and also the package temp is very low, I think it´s impossible to have all sensors bad. I assume that Your bios is showing also low temps now? Maybe You can try the SW of asrock to check what temps it reports

 

Currently I can´t give You more hints, this situation is really strange,

 

BR,

 

Peter

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My BIOS still reports a CPU temp if 42c, which is what it has reported from the start.

 

I've already contacted Asrock about the issue, but haven't heard back from them.

 

Tonight I plan on applying the thermal paste as recommended on the Tuniq website. If the temps still look strange, then I will take the motherboard back and get another one to see if that resolves the issue.

 

If the issue still happens after that, then it has to be the CPU, right?

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My BIOS still reports a CPU temp if 42c, which is what it has reported from the start.

 

I've already contacted Asrock about the issue, but haven't heard back from them.

 

Tonight I plan on applying the thermal paste as recommended on the Tuniq website. If the temps still look strange, then I will take the motherboard back and get another one to see if that resolves the issue.

 

If the issue still happens after that, then it has to be the CPU, right?

 

Hi,

 

Please check first also with the asrock software what You received with the board the temps. As Your board shows "looks like"good temps in BIOS I assume the problem will be elsewhere. I have checked all screens You posted once again, on the first one (right side) looks like the CPU is reporting valid package temperature (25°C) what can happen at Your really low ambient temps. Check the asrock SW and let know please what it shows. Maybe just CL is not reading things properly from Your MB?

 

Also, when You run SIV you need to quit CL software (even from tray).

 

BR,

 

Peter

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Not sure exactly what you need to see in SIV, but I posted a few screenshot below.

 

Have a look at Menu->Edit->View System. It also best to post a screen shot showing CL and [Hardware Status] so we can compare what both report.

 

In general you will find TE CPU PECI + PKG Core i7 report how hot the CPU is. Quite often the average Core temp is lower then PKG Core i7.

 

There is a bug in SIV 5.06 as TE CPU PECI is not reported on [Hardware Status]. If you e-mail or post the two save files I will fix it, see http://forum.corsair.com/forums/showthread.php?p=788225 for how to generate them. I typically takes me less than an hour once I get the files, but it may take slightly longer as I also need to fix the voltages.

 

I am also wondering why SIV did not report your GTX 980Ti temperature. Do you have the drivers installed? Please include [gpu-info] in the [save Selected].

 

Also, when You run SIV you need to quit CL software (even from tray).

 

It's safe to run SIV when CL is active, but if you do this SIV will not report the CL hardware. NEVER start CL is SIV is reporting CL hardware.

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Have a look at Menu->Edit->View System. It also best to post a screen shot showing CL and [Hardware Status] so we can compare what both report.

 

Both of those screenshots should be above. Did you mean of them running side-by-side?

 

There is a bug in SIV 5.06 as TE CPU PECI is not reported on [Hardware Status]. If you e-mail or post the two save files I will fix it, see http://forum.corsair.com/forums/showthread.php?p=788225 for how to generate them. I typically takes me less than an hour once I get the files, but it may take slightly longer as I also need to fix the voltages.

 

I can look into this tonight.

 

I am also wondering why SIV did got report your GTX 980Ti temperature. Do you have the drivers installed? Please include [gpu-info] in the [save Selected].

 

No, I haven't installed any drivers for my GPU. I was trying to resolve the CPU temp issue before doing anything else.

 

It's safe to run SIV when CL is active, but if you do this SIV will not report the CL hardware. NEVER start CL is SIV is reporting CL hardware.

 

So always start CL before SIV?

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Both of those screenshots should be above. Did you mean of them running side-by-side?

 

Yes, one screen shot showing both so we know the temperatures should be the same.

 

So always start CL before SIV?

 

If you wish to run both then yes, start CL then SIV. On start-up SIV will detect CL is there and not report the CL hardware. [Link Devices] explains why, see http://forum.corsair.com/forums/showthread.php?p=831307.

 

If you wish SIV to report the CL hardware then just run SIV and exit SIV before you start CL.

 

I can look into this tonight.

 

Thank you. Once I get the save files I will upload a 5.07 Beta with the fixes.

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I applied new thermal paste to the CPU tonight and re-seated the H100i GTX and my temps went up from what they were before. I don't know if they're still right, since they still appear to be below ambient, which is currently 26c.

 

Anyways, here are some new screenshots. I have also attached the two files you requested from SIV, based on the instructions in the other thread. That being said, I didn't see an embedded option to check.

 

I ran CPUID HWMonitor on this new PC and my old PC, which are sitting right beside each other. The old PC just uses air cooling and I don't have the side on the case and the main case fan is broken. When I compare the temps the old PC has and average temp of 41c. The new PC, which is water cooled and has more fans has an average temp of 30c. These are Core Temps and I don't know if this info is even useful.

 

Also, what's the difference between System Temp and Motherboard Temp 3? And i7-6700K Temp and Motherboard CPU Temp?

 

Finally, I ran a brief 10 min torture test using Prime95 v and my Motherboard Temp didn't change, my i7-6700K Temp went up to 60c and the Motherboard Temp 3 and CPU Temp went up to 65c. These temps seem a little warm considering I haven't even overclocked yet.

 

Thanks for the help and let me know if you need anything else.

 

System

 

This doesn't contain a side-by-side with CL, but you can compare it to the other screenshots that do have a side-by-side.

 

http://i.imgur.com/WLoGgjT.png

 

Cooling Status

 

http://i.imgur.com/Gzy9Crb.png

 

Hardware Status

 

http://i.imgur.com/W1PMA8C.png

 

Sensor Debug

 

http://i.imgur.com/BCm1L6N.png

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