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post #6751 of 14772
a few update on my BE biggrin.gif



     
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post #6752 of 14772
Quote:
Originally Posted by IT Diva View Post

You only need the one tach wire to read rpm, as long as the pump/fan runs from the same PSU as the device to read/display the RPM does.
The tach circuit in the pump, or fan, essentially is just a mechanism, either optical or electronic/magnetic, that electrically connects the tach wire to the ground wire twice every revolution.
The device being used to "read" the tach signal, (fan controller display or mobo) has an internal resistor that pulls the tach wire up to some positive voltage level, usually 5V or 3.3V, and then counts the number of times the voltage levels drops to near 0V in a given time period, indicating that the tach wire connects to ground.
When you set a pump to run at 7V, by using the 5V wire for gnd, and the 12V wire for +, then the tach wire only connects to the 5V line, and not ground as it was supposed to.
Depending on the circuitry of whatever is "reading" the tach wire, it may or may not, and may not is far more likely, be able to derive an rpm value from the non standard tach signal input level.
The pump at 12V should display fine.
Darlene

Different ground potentials?

What do you think about using 2 PSUs in general... and the GP issue?
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post #6753 of 14772
Quote:
Originally Posted by JottaD View Post

a few update on my BE biggrin.gif

Warning: Spoiler! (Click to show)

Looking good so far thumb.gif
Are you using the same tubes I am, Tygon?
    
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post #6754 of 14772
Quote:
Originally Posted by Mydog View Post

Looking good so far thumb.gif
Are you using the same tubes I am, Tygon?

nop rolleyes.gif

this one :
TUBE Primo Chill Primo Flex Onyx Black 12.7 mm (1/2 ") / 19.1 mm (3/4")
     
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post #6755 of 14772
Hi guys i come here to join the club and gain some oc experience! wink.gif


Validation

http://valid.canardpc.com/iwv817

Album of my build on Facebook. High resolution pics.

https://www.facebook.com/media/set/?set=oa.271859722982394&type=1


Buildlog on a Swedish forum called Sweclockers

http://www.sweclockers.com/forum/143-projektloggar/1285813-540-dark-now-h2o-akrylic/#post14471253



    
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post #6756 of 14772
Quote:
Originally Posted by Raja@ASUS View Post


Raja - I'm using a simple offset OC (offset + turbo, bclk =100) and when switching from 45x to 46x with only changing offset and turbo voltages the MB does a reset (clock gen reset is enabled)... but this reset does not occur when going from 46x to 47x or 48x?
For example with LLC High:
45x all cores
offset = +5mV, Turbo capped at +8mV (which = 1.28V loaded)
Change to:
46x all cores
offset = +5mV, Turbo capped at +24mV (= 1.31V loaded. Yes, I probably could take 45x to negative offset)
I get a cold restart/post
Doing the same from there up through 49x, the MB does not restart, just loads the setting and does a warm re-post

Anyone know what's being triggered on going from 45x to 46x (or above)? All the above clocks are stable to R15 and at least 30min p95 with 5min/FFT (and gaming... etc)
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post #6757 of 14772
First question. I hawe seven PWN fans i my rig.

I'm currently using all Chassi fan 4 pin connetions.
Both Cpu 4 pin connections + two of the three OPT Chassi fan 4 pin headers.

Chassi fan 1 - Fan 1
Chassi fan 2 - Fan 2
Chassi fan 3 - Fan 3

CPU Fan - Fan 4
CPU OPT Fan - Fan 5

OPT Chassi fan 1 - Fan 6
OPT Chassi fan 2 - Fan 7

I get RPM readings from all Chassi fan and CPU headers but with the OPT Chassi fan headers i doesn't read my rpm values.
I'm have tested multiple programs and software monitors.

Also why does these 3 headers not support the same customization like the three main chassi fan headers?
I have read the manual and looked in my bios. I cant find any good explanation of the values.
Does the pre set profiles, duty mode and "user mode" follow the motherboards chassi temprature?

I want them to follow CPU temps or at least have a pretty aggressive profile.
I cant go for the best setting when i dont know my fans Rpm values.

Please help me with this! smile.gif


EDIT

Looks like the only time bios can read RPM of the OPT Chassi fan headers is when DUTY mode is enabled. 90% showed me 900RPM of my 1000RPM fans.
But when ever i switched over to User mode or Profile mode. The mobo doesn't recognize that there are fans connected.

This must be a faulty Bios issiue. Asus cant seriously think that it should be this way.
Best would be if they just made all 4pin headers normal Chassi fan 1-6 instead becuse they work fine! Especially with the customization part.
Edited by TobbbeSWE - 3/25/14 at 6:24pm
    
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post #6758 of 14772
Quote:
Originally Posted by IT Diva View Post

You only need the one tach wire to read rpm, as long as the pump/fan runs from the same PSU as the device to read/display the RPM does.

The tach circuit in the pump, or fan, essentially is just a mechanism, either optical or electronic/magnetic, that electrically connects the tach wire to the ground wire twice every revolution.

The device being used to "read" the tach signal, (fan controller display or mobo) has an internal resistor that pulls the tach wire up to some positive voltage level, usually 5V or 3.3V, and then counts the number of times the voltage levels drops to near 0V in a given time period, indicating that the tach wire connects to ground.

When you set a pump to run at 7V, by using the 5V wire for gnd, and the 12V wire for +, then the tach wire only connects to the 5V line, and not ground as it was supposed to.


Depending on the circuitry of whatever is "reading" the tach wire, it may or may not, and may not is far more likely, be able to derive an rpm value from the non standard tach signal input level.

The pump at 12V should display fine.


Darlene

Confirming that Darlene is correct. 4731 rpm on the pump! thumb.gif And since I moved the pump to the back of the case the noise is not that audible anymore. Makes a lot of sense. feeling a but embarrassed as I forgot all my electronic class since university. All I remeber is that of your skin stick to the mosfet when you touch it you need a bigger one smile.gif
    
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post #6759 of 14772
Quote:
Originally Posted by Jpmboy View Post

Different ground potentials?

What do you think about using 2 PSUs in general... and the GP issue?

I used a booster X5 on my old system to get an extra 450W into the system and the power cord didn't have a ground. The X5 is powering up from a molex connector from the first PSU and uses it as a ground reference.
    
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i7-4930K Asus Rampage IV Black edition EVGA GTX780 TI SC ACX EVGA GTX780 TI SC 
RAMHard DriveHard DriveHard Drive
G-Skill Ripjawz-Z F3-2400C11Q-32GZM Samsung EVO 750GB SSD seagate ST3000DM001-1CH166 seagate ST3000DM001-1CH166 
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XSPC Razor GTX780 ti backplate XSPC Razor GTX780 ti backplate Koolance QD3 Quick Disconnect No-Spill Coupling... ek coolstream 120XT 2X 
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EK-DDC X-TOP 3.25 DDC Pump Windows 8.1 X64 Dell 3007WFPHC dell 
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post #6760 of 14772
Quote:
Originally Posted by TobbbeSWE View Post

EDIT

Looks like the only time bios can read RPM of the OPT Chassi fan headers is when DUTY mode is enabled. 90% showed me 900RPM of my 1000RPM fans.
But when ever i switched over to User mode or Profile mode. The mobo doesn't recognize that there are fans connected.

This must be a faulty Bios issiue. Asus cant seriously think that it should be this way.
Best would be if they just made all 4pin headers normal Chassi fan 1-6 instead becuse they work fine! Especially with the customization part.

ASUS fan control is not the most optimal, sure. There are dual SuperI/O chips that control the fans, hence the two different fan "domains". This seems more a controller limitation rather than by ASUS choice, as I kind of feel they have some of the most advanced system fan headers. Which is an odd thing to be the best at, but it is what it is. Otherwise, you have like an aquaero built into the motherboard, and I don't think all users need to pay for this just yet.
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