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Asus Maximus X Formula W_FLOW header missing


Elderdeekey

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One of the reasons to buy this expensive mobo was my thought to get rid of unpleasant reading of water cooling flow in rpm and get it as  L/min or alike. Maximus X Formula has W_FLOW header and when my flow meter from Koolance is connected to that header it shows my flow as L/min in BIOS.

To my unfortunate AIDA64 doesn't show it in the list. I do understand this is very new mobo and perhaps AIDA doesn't know about it (yet).

I've tried the latest beta (5.95.4544 Beta). Any plans to add it in the future releases?

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W_FLOW header is shown as Water Flow fan in AIDA64. But you may need to enable the following 2 options in AIDA64 / main menu / File / Preferences / Stability to have the reading properly measured by AIDA64.

Embedded Controller (EC) support
Embedded Controller (EC) bank switching

Regards,
Fiery

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1 hour ago, Elderdeekey said:

Thanks for the reply, both are enabled, no show...

Edit - added a few pictures to illustrate the situation.

Thank you for the photos.  Please right-click on the bottom status bar of AIDA64 main window --> Sensor Debug --> ISA Sensor Dump. Copy-paste the full results into this topic, or attach the results as a TXT file to your post. You may need to enable status bar in AIDA64 / main menu / View first.

Then right-click on the bottom status bar of AIDA64 main window --> Sensor Debug --> SMBus Dump (Full). Copy-paste the full results into this topic, or attach the results as a TXT file to your post.

Finally, right-click on the bottom status bar of AIDA64 main window --> Sensor Debug --> Embedded Controller Dump. Copy-paste the full results into this topic, or attach the results as a TXT file to your post.


Thanks,
Fiery

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On ‎2018‎. ‎02‎. ‎21‎. at 10:18 PM, Elderdeekey said:

wow, never seen that before :)

Please find 3 dump files attached and thank you very much for the attention to the problem!

ecdump.txt

isasensordump.txt

smbusdump_full.txt

Thank you.  Strangely we cannot see any valid readings in the W_FLOW register.  One more odd thing is that the CPU OPT fan register seems to indicate a reading of 1395 RPM in your register dumps, but on the BIOS Setup photo above the CPU OPT fan didn't seem to be spinning at all.

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Actually I was eager to see if that helps and made that simple loop right away - as you may see below this is EKWB DDC PWM pump with the simplest flow meter from Barrow. Coolant rotates propeller which sends interrupts via 3-pin cable to fan's header on mother board. This cable was attached to W_FLOW header there.

simple_loop.jpg.2ca67eecb6a9c18d087c50f6dd4eba6a.jpg

This is Flow Rate reading in BIOS:

flow_rate_bios_reading.jpg.d674b5d716c17e2d081a9b41ea7f8ea2.jpg

 

To my unfortunate nothing has changed since my first try - still no Water Flow Fan or alike in the list of sensors...

I'm using 5.95.4557 Beta version and have attached dump files below from this simple test.

Hope you could find something that prevents AIDA to see that bloody Flow Rate :)

Thanks!

ecdump2.txt

isasensordump2.txt

smbusdump_full2.txt

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Fiery, great job!

Yes, "Water Flow" as cooling fan is visible now. Also, as a free beer, I've also got 2 sensors from Aquasuite visible as well: 1) - the real flow meter (they call it Aqua-Computer Flow sensor MPS flow 100, it is connected via USB to motherboard) and 2) - it's internal temperature sensor. Both wasn't visible before :) 

Well, as you told before, "water flow" header is visible as cooling fan... and so it shows RPM, not L/min or L/hour the way ASUS BIOS shows it at monitoring page (please see a screencap below):

rpm.jpg.701b3f886b0a8555c84e6d666fddf28d.jpg

I do know there is a simple math in conversion from RPMs to LPH or LPM (or even simply rename RPM into flow measurement) as I still need it that way... It seems like it shows it as ml/min (it is close to my 70 LPH for main loop w/o workload). So could it be possible to show it as a real flow units?

P.S. Interesting enough that Aquasuite sensor is seen as Flow#1 and shows flow in correct format 56.8 LPH

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On ‎2018‎. ‎03‎. ‎13‎. at 10:06 AM, Elderdeekey said:

Just to add - according to asus support answer the conversion RPM into flow units is done by using this approach -
https://www.wou.edu/las/physci/taylor/g322/flow_meter_velocity_conversion_chart.pdf

Thank you for your feedback.  I don't think that that formula applies to this particular case.  Asus seems to use a simpler formula of x 24 / 1000 to convert the raw RPM readings into LPM (L/M).  The AIDA64 sensor module uses a fixed measurement unit of LPH (L/H) on the flow sensor readings, so we need to come up with a proper formula to convert the RPM value of Water Flow on your motherboard into the LPH reading that can be squeezed into the AIDA64 sensor module as a secondary measurement for the same reading for your motherboard.

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3 minutes ago, tistou77 said:

Hello

I am interested in this conversion from RPM to L/H
With my Rampage VI Extreme, in the bios I have the indication as on the screen of Elderdeekey and in Aida64, it is RPM

Based on your experiences with your Rampage VI Extreme motherboard, what do you reckon the proper conversion formula from RPM to LPH would be?

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9 minutes ago, Fiery said:

Based on your experiences with your Rampage VI Extreme motherboard, what do you reckon the proper conversion formula from RPM to LPH would be?

It would seem, according to Koolance for their flow meters, that the indicated RPMs would correspond approximately to ml/min
And therefore 1500 RPM = ~1500 ml/min = 90 L/H
After I do not know if it's applicable just to the product Koolance

But in the bios, I have 76 L/M indicated and in Aida64, 2900RPM ...
I think 76 L/M is huge

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4 minutes ago, tistou77 said:

It would seem, according to Koolance for their flow meters, that the indicated RPMs would correspond approximately to ml/min
And therefore 1500 RPM = ~1500 ml/min = 90 L/H
After I do not know if it's applicable just to the product Koolance

But in the bios, I have 76 L/M indicated and in Aida64, 2900RPM ...
I think 76 L/M is huge

The BIOS (at least on Maximus X Formula) uses a formula of x 24 / 1000 to get to L/M, but I don't think that that formula is correct.  Unless we can come up with a proper formula that yields to values that make sense, I'd be hesitant to convert the raw RPM reading to anything else...

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4 minutes ago, Fiery said:

The BIOS (at least on Maximus X Formula) uses a formula of x 24 / 1000 to get to L/M, but I don't think that that formula is correct.  Unless we can come up with a proper formula that yields to values that make sense, I'd be hesitant to convert the raw RPM reading to anything else...

at ~ 200 RPM, that will correspond to the conversion indicated by Koolance

76 L/M (in my bios) = 76 x1000 /24 = 3166 RPM
In Aida64 = ~2950 RPM

Having PWM pumps, I will have to check by disabling the PWM (the pumps can turn faster while being in the bios)

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On ‎19‎.‎03‎.‎2018 at 7:42 PM, Fiery said:

Thank you for your feedback.  I don't think that that formula applies to this particular case.  Asus seems to use a simpler formula of x 24 / 1000 to convert the raw RPM readings into LPM (L/M).  The AIDA64 sensor module uses a fixed measurement unit of LPH (L/H) on the flow sensor readings, so we need to come up with a proper formula to convert the RPM value of Water Flow on your motherboard into the LPH reading that can be squeezed into the AIDA64 sensor module as a secondary measurement for the same reading for your motherboard.

I finally got the second Aqua-Computer Flow sensor MPS flow 400, which is seen as Flow sensor in AIDA64, and which shows flow as LPH. It takes data from Aqua software, aka Aquasuite. Sensor is connected to motherboard via USB2. AIDA64 takes Flow data from Aquasuite and shows it as LPH within its sensors. So conversion is done by Aqua SW from the data received from their own sensor.

To compare flow data I could rely on my water pump RPM only - it always was/is around 2200 RPM from the very beginning.

Now let's see what data I've got:
- my previous Koolance flow meter, connected to WATER_FLOW header, was showing 36 L/M in BIOS (see 1st screencapture) - unrealistically high value, while AIDA64 was showing ~1300 RPM. If connected to any fan header it was showing 1200-1250 RPM;
- my today's flow meter from Aqua (with the same water pump RPM) shows ~100 LPH. It is very realistic number as D5 PWM from EKWB is capable to produce up to 400 LPH under full load, which is ~4800 RPM (and my loop has low flow resistance). In my particular case Aqua sensor shows ~330 LPH when pump is around 4800 RPM.

It could be calibrated more precisely but my point is - 
ASUS has made WATER_FLOW header but didn't specify what flow meters should/could be connected to this one. It doesn't take into consideration the internal diameter of your tubes etc. That makes me think this is rather marketing feature of this motherboard than a precise tool you could rely on for water flow measurement in flow units (L/M or L/H). If you need such tool - buy flow meter from Koolance (with appropriate LCD and HW converter, so you will see flow in LPH) or Aqua one. The measurement through WATER_FLOW header depends on what flow meter you connect there and since you can't specify which one you have connected (ASUS BIOS doesn't have such feature) as well as diameter of your tubes and/or other parameters, BIOS data might not be realistic and definitely are not precise whatever formula ASUS is using for conversion.

Bottom line - after second thought I agree with Fiery - no need to convert this header info in AIDA from RPM to LPH - the data might not be correct... Let's leave it as such - RPM :)

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On ‎2018‎. ‎03‎. ‎21‎. at 10:22 PM, Elderdeekey said:

I finally got the second Aqua-Computer Flow sensor MPS flow 400, which is seen as Flow sensor in AIDA64, and which shows flow as LPH. It takes data from Aqua software, aka Aquasuite. Sensor is connected to motherboard via USB2. AIDA64 takes Flow data from Aquasuite and shows it as LPH within its sensors. So conversion is done by Aqua SW from the data received from their own sensor.

To compare flow data I could rely on my water pump RPM only - it always was/is around 2200 RPM from the very beginning.

Now let's see what data I've got:
- my previous Koolance flow meter, connected to WATER_FLOW header, was showing 36 L/M in BIOS (see 1st screencapture) - unrealistically high value, while AIDA64 was showing ~1300 RPM. If connected to any fan header it was showing 1200-1250 RPM;
- my today's flow meter from Aqua (with the same water pump RPM) shows ~100 LPH. It is very realistic number as D5 PWM from EKWB is capable to produce up to 400 LPH under full load, which is ~4800 RPM (and my loop has low flow resistance). In my particular case Aqua sensor shows ~330 LPH when pump is around 4800 RPM.

It could be calibrated more precisely but my point is - 
ASUS has made WATER_FLOW header but didn't specify what flow meters should/could be connected to this one. It doesn't take into consideration the internal diameter of your tubes etc. That makes me think this is rather marketing feature of this motherboard than a precise tool you could rely on for water flow measurement in flow units (L/M or L/H). If you need such tool - buy flow meter from Koolance (with appropriate LCD and HW converter, so you will see flow in LPH) or Aqua one. The measurement through WATER_FLOW header depends on what flow meter you connect there and since you can't specify which one you have connected (ASUS BIOS doesn't have such feature) as well as diameter of your tubes and/or other parameters, BIOS data might not be realistic and definitely are not precise whatever formula ASUS is using for conversion.

Bottom line - after second thought I agree with Fiery - no need to convert this header info in AIDA from RPM to LPH - the data might not be correct... Let's leave it as such - RPM :)

Thank you for your test runs and detailed feedback, it's very helpful.

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  • 7 months later...
On 3/13/2018 at 2:06 AM, Elderdeekey said:

Just to add - according to asus support answer the conversion RPM into flow units is done by using this approach -
https://www.wou.edu/las/physci/taylor/g322/flow_meter_velocity_conversion_chart.pdf

I'm confused. Isn't that converting rpm to meter per second? So speed of water moving, not the actual amount of liquid flowing? I don't care of water is moving at 35775367 m/s if it only a teaspoon a min

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Sorry to bring back from dead but I'm trying to figure this out on a maximus XI formula and google has this thread at top of a very short list of relevant hits. I have koolance flow meter and their adapter and show 40 L/M is uefi

Was this ever figured out? I can't find flow reading in aida. Is beta version required for this still? I'm using 5.98.4800

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1 hour ago, rtlflat said:

Sorry to bring back from dead but I'm trying to figure this out on a maximus XI formula and google has this thread at top of a very short list of relevant hits. I have koolance flow meter and their adapter and show 40 L/M is uefi

Was this ever figured out? I can't find flow reading in aida. Is beta version required for this still? I'm using 5.98.4800

On Asus Maximus motherboards AIDA64 doesn't convert the raw flow readings to L/M.

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  • 1 year later...

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