Water cooling pump monitor

bigben2k · 05-07-2002, 10:15 AM

Ok, here's a very good thread to start...

I think we should talk about how we can simply automate a water cooling rig, so that if something goes wrong, the PC will shut itself down.

Now, we should all be familiar with MBM (Motherboard Monitor), which is mentionned several times everywhere, for the purpose of shutting down a PC if the temp gets too hot.

So here's my suggestion: let's expand the idea to include a FLOW SENSOR!

I'd love to get my hands on something like this little gizmo:
http://www.innovatek.de/sites/wkuhler.html
unfortunately, I don't speak German. Going through a translator, it seems that this company sells this toy and suggests hooking it up to the motherboard.

I can't find the darn thing in the USA. Anyone?

I also thought about a level sensor for the tank (for those who use one), but since the system is essentially closed, there doesn't seem to be a point, except maybe to hook it up to a LED "low fluid level" indicator.

We could however, include a couple of in-line thermal probes. (I certainly want to know how well the rig is going to perform!

Any comments?

pHaestus · 05-07-2002, 10:23 AM

http://www.overclockers.com/tips642/

Should be able to do what you need with that

pHaestus · 05-07-2002, 10:26 AM

Oh and Joe has a Swiss Flow flowmeter that connects to a motherboard's fan header and converts rpm of the flowmeter to a GPM value (with some math).

bigben2k · 05-07-2002, 11:22 AM

I found this sensor, but no electronic link. I'm sure it's useless for our purpose, but it gives an idea of what I'm looking for:
http://www.sciencekit.com/Products/D...egoryID=193995

versus what I'm NOT looking for:
http://www.controleng.com/archives/p...ruary/p401.htm

As for the level sensor, this is the cheapest I could find:
http://www.omega.com/toc_asp/subsect...K12&book=Green
(It's basically a float mounted magnet, with a reed switch)

I did find thermal sensors:
http://www.omega.com/ppt/pptsc.asp?ref=5TC&Nav=tema02
Maybe someone can give us an opinion on those, or a better source! I'd also need to rig them up for in-line operation...

UnaClocker · 05-07-2002, 01:20 PM

CPU Overtemp shutdown

myv65 · 05-07-2002, 09:11 PM

I'm curious what you guys think something like this would be worth. I've teamed up with one of my coworkers to build a couple of prototypes specifically for this purpose. The box essentially has plugs for a PSU molex and wall outlet, with another set of plugs for your pump and PSU. When you turn on the PSU, a relay turns on the pump power and a pressure switch monitors the pump outlet pressure. If it doesn't reach a setpoint with "X" seconds, power to the PSU gets cut. Toying with putting some LEDs on to give a little feedback.

I'll emphasize it's just a prototype we've made and we don't currently have any plans for production. More of a "gee, wouldn't it be neat to have. . ." sort of thing.

Any thoughts? Sound like something people would be willing to buy? Priciest part is the pressure switch, which is ~$10 ea in quantity. Hand-made units would probably cost ~$40, give or take.

imatation · 05-07-2002, 09:27 PM

on some newer mobos (i think the new soyo kt3 ultras) have an option where if the cpu fan drops below a certain rpm the computer will shut down. I think it would be pretty easy to use a visible flow meter with an impeller inside and sorta hook it up like they did in that overclockers.com link above. you could place a tiny magnet on one of the impeller blades and use the hall effect sensor the same way its used inside fans. you could probably find a way to mount the sensor on the outside of the flowmeter. that way the hall effect sensor would report the rpm of the impeller the same way it reports the rpm of the armatures inside fans. then just hook up the modified flow meter to the cpu fan power socket and the mobo would moniter the impeller rpm thinking it is a fan cooling the cpu, and when ever the impeller rpm drops below a predetermined rpm the computer will shut itself down

05-07-2002, 10:15 AM	#1
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Water cooling pump monitor Ok, here's a very good thread to start... I think we should talk about how we can simply automate a water cooling rig, so that if something goes wrong, the PC will shut itself down. Now, we should all be familiar with MBM (Motherboard Monitor), which is mentionned several times everywhere, for the purpose of shutting down a PC if the temp gets too hot. So here's my suggestion: let's expand the idea to include a FLOW SENSOR! I'd love to get my hands on something like this little gizmo: http://www.innovatek.de/sites/wkuhler.html unfortunately, I don't speak German. Going through a translator, it seems that this company sells this toy and suggests hooking it up to the motherboard. I can't find the darn thing in the USA. Anyone? I also thought about a level sensor for the tank (for those who use one), but since the system is essentially closed, there doesn't seem to be a point, except maybe to hook it up to a LED "low fluid level" indicator. We could however, include a couple of in-line thermal probes. (I certainly want to know how well the rig is going to perform! Any comments? __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-07-2002, 11:22 AM	#4
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	I found this sensor, but no electronic link. I'm sure it's useless for our purpose, but it gives an idea of what I'm looking for: http://www.sciencekit.com/Products/D...egoryID=193995 versus what I'm NOT looking for: http://www.controleng.com/archives/p...ruary/p401.htm As for the level sensor, this is the cheapest I could find: http://www.omega.com/toc_asp/subsect...K12&book=Green (It's basically a float mounted magnet, with a reed switch) I did find thermal sensors: http://www.omega.com/ppt/pptsc.asp?ref=5TC&Nav=tema02 Maybe someone can give us an opinion on those, or a better source! I'd also need to rig them up for in-line operation... __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

05-07-2002, 01:20 PM	#5
UnaClocker Cooling Savant Join Date: Apr 2000 Location: Bremerton, WA Posts: 514	CPU Overtemp shutdown __________________ The UnaClocker Watercooler Extraordinaire! Overclock till it goes BOOM!

05-07-2002, 10:23 AM	#2
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	http://www.overclockers.com/tips642/ Should be able to do what you need with that

05-07-2002, 10:26 AM	#3
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	Oh and Joe has a Swiss Flow flowmeter that connects to a motherboard's fan header and converts rpm of the flowmeter to a GPM value (with some math).

05-07-2002, 09:11 PM	#6
myv65 Cooling Savant Join Date: May 2002 Location: home Posts: 365	I'm curious what you guys think something like this would be worth. I've teamed up with one of my coworkers to build a couple of prototypes specifically for this purpose. The box essentially has plugs for a PSU molex and wall outlet, with another set of plugs for your pump and PSU. When you turn on the PSU, a relay turns on the pump power and a pressure switch monitors the pump outlet pressure. If it doesn't reach a setpoint with "X" seconds, power to the PSU gets cut. Toying with putting some LEDs on to give a little feedback. I'll emphasize it's just a prototype we've made and we don't currently have any plans for production. More of a "gee, wouldn't it be neat to have. . ." sort of thing. Any thoughts? Sound like something people would be willing to buy? Priciest part is the pressure switch, which is ~$10 ea in quantity. Hand-made units would probably cost ~$40, give or take.

05-07-2002, 09:27 PM	#7
imatation Cooling Neophyte Join Date: May 2002 Location: SC Posts: 68	on some newer mobos (i think the new soyo kt3 ultras) have an option where if the cpu fan drops below a certain rpm the computer will shut down. I think it would be pretty easy to use a visible flow meter with an impeller inside and sorta hook it up like they did in that overclockers.com link above. you could place a tiny magnet on one of the impeller blades and use the hall effect sensor the same way its used inside fans. you could probably find a way to mount the sensor on the outside of the flowmeter. that way the hall effect sensor would report the rpm of the impeller the same way it reports the rpm of the armatures inside fans. then just hook up the modified flow meter to the cpu fan power socket and the mobo would moniter the impeller rpm thinking it is a fan cooling the cpu, and when ever the impeller rpm drops below a predetermined rpm the computer will shut itself down

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