View Full Version : What happens when your pump stops?
orion456
07-04-07, 08:56 PM
How long does it take before an E6600 hits shut down temperature?
Does the water keep circulating somewhat if your rad is on the top?
Is there a danger of pressure build up inside the loop?
Who has had this happen....describe your trama.
Big Mike
07-04-07, 09:20 PM
Surprisingly, its almost instantaneous, at least it was on my rig, I unplugged it and the temps skyrocketed and the computer was off within 10 seconds. Needless to say I won't be doing that again
orion456
07-04-07, 09:28 PM
Wow, that is surprising, I would have guessed two minutes. I know on air it takes quite a few minutes to reach high temperatures; but then you do have a lot of metal to heat up first.
Big Mike
07-04-07, 09:29 PM
Yeah, you and me both, lol, I was just going to reconnoiter some stuff in the case, and BAMO it was off.
Propaganda
07-04-07, 09:31 PM
How long does it take before an E6600 hits shut down temperature?
Does the water keep circulating somewhat if your rad is on the top?
Is there a danger of pressure build up inside the loop?
Who has had this happen....describe your trama.
IDK
Not enough to measure.
Yes, but IDK the limit.
With a P4 2ghz and ATI 9500ish I had the pump not pluged in... the graphics slowed down to a crawl... thats when I noticed something was wrong. For that it only took a few minutes for the system to be near critical failure.
I've seen pics with melted tubing...
Surprisingly, its almost instantaneous, at least it was on my rig, I unplugged it and the temps skyrocketed and the computer was off within 10 seconds. Needless to say I won't be doing that again
Wow, thats fast. I've unplugged my pump just to see how fast the temp rises and it took nearly a minute before my temps got to a point that I was uncomfortable with, but not really dangerous(~60C). I did it to test if MBM would shut down my system in the even of a pump failure.... and it did. I think I have it set to shut down at 60C.
Denbob99
07-05-07, 04:05 AM
Technically if your rad is horizontally above the waterblock, convection should occur and keep the water flowing.
WonderingSoul
07-05-07, 05:37 AM
Technically if your rad is horizontally above the waterblock, convection should occur and keep the water flowing.
Technically, lol. But will it really work? :p
QuietIce
07-05-07, 06:00 AM
Probably too much resistance in the average loop to allow convection ...
Mine took about a min before the the mobo shut it down.
--pak
Denbob99
07-05-07, 06:19 AM
If there is just a CPU in the loop it is possible, I read an article about someone who used convection to passively watercool their CPU. Placed a largish heatercore on top of the case horizontally, connected it to a CPU block and left it to its own devices.
AzAzEl656
07-05-07, 06:40 AM
Surprisingly, its almost instantaneous, at least it was on my rig, I unplugged it and the temps skyrocketed and the computer was off within 10 seconds. Needless to say I won't be doing that again
Do you remember what temp it was right before shutting off?
Mine got 80C and didn't shut off but my motherboard's settings say it should shut down at 60C. Strange... (I'm on air BTW)
Big Mike
07-05-07, 09:22 AM
I want to say the last temp i saw was 76C, it cut out right after it changed to 76.
Sleepy_Steve
07-05-07, 09:35 AM
Bummer, I can get away with a few minutes on my P4 @ 3.6 on air.... and like 30 seconds on my E6600 in the mid 3's.
Never had the guts to try it on water. I doubt I will now. :D
And mike, has that FD blown up yet? I mean my car club down at school went through 3 this past year alone lol. Yeah, running jokes fly about a triangular peg into a roundish hole.
core2due
07-05-07, 09:40 AM
I had this cheap water cooler for my video card and the pump stopped and after a minute or two I had steam coming out the back of my pc. The way the block was made was the connections going into it were soldered on and it got so hot it melted the solder.:)
Back when I had an athlon xp running with a peltier, the power cycled and the pump stopped but the peltier didn't. Formed a steam lock around the waterblock. Which saved my motherboard by keeping it from leaking after it melted the acrylic top to the block enough that it was no longer watertight.
Of course it fried the CPU. :(
AzAzEl656
07-05-07, 09:51 AM
I had this cheap water cooler for my video card and the pump stopped and after a minute or two I had steam coming out the back of my pc. The way the block was made was the connections going into it were soldered on and it got so hot it melted the solder.:)
Sheesh! What a way to go.
Orion, if your pump fails then your PC will shut down and your CPU probably won't get damaged. I think the mobo has a cut off thingy to avoid heat damage. If your still a bit worried, then set your BIOS to shut off at a certian temp. That is, if your mobo has that feature.
||Console||
07-05-07, 10:04 AM
I always found that I could boot and use the pc normaly if I forgot to plug the pump in . Untill you start using any thing besides IE then the Pc crashes even on super pi
Big Mike
07-05-07, 10:20 AM
And mike, has that FD blown up yet? I mean my car club down at school went through 3 this past year alone lol. Yeah, running jokes fly about a triangular peg into a roundish hole.
No, I heard you actually have to drive the car for it to blow up, rofl, I think I've put 1000 miles on it in the 4 years I've owned it. I'm also super anal about how things are done and I've done like 8 years of research into the do's and don'ts of rotaries... We'll see how it fares once I get the oil leak straightened out for good and get it tuned the rest of the way. I'm thinking I'll pop the coolant seals before the apex seals. I can live with blown coolant seals, its just a wear issue like a head gasket, apex seals are avoidable if you build and tune just right.
Steam from WC rig. Now that is impressive! :bang head
It should be enabled by default, but it's worth checking to make sure the overtemp shutdown is enabled in your bios and the limit is appropriate for your CPU.
If you're really paranoid about this, here's a DIY flow sensor.
http://www.overclockers.com/tips1114/
jrafael
07-06-07, 09:46 AM
I have a Via Aqua 1300 connected with a relay card so its turn on/off with my computer, during a thunder storm the power line flicked really fast and the fuse in the relay card burned and the water pump stop working, but the computer keep on running, I wasn't at home but my wife told the computer start beeping like crazy and the shutdown (cpu overheat protection), so when I got back home, I was really scare about loosing my brand new opty 170 and mad at my self for switching to watercooling + running the opty naked, anyways I replace the fuse, danced to the god's of watercooling and pray for mercy, then press the power button and like nothing happened, the pump started and so the pc, fired up orthos it ran for 12h with out errors(triyng to check it the processor suffer damage due to overheathing), then ran wprime multiple time, and everything came ok, what is really weird its before this incident, I couldnt oc past 280 fsb no manner voltage, mult, htt, etc, now I can go up to 3G @ 1.45 40C at full load ???? is not stable though (crappy psu), but I will be upgrading soon.
Iron Hawk
07-06-07, 12:26 PM
back in the day, i unplugged my ViaAqua 1300 thinking the cord went to somthing else. It went 5 or 6 hours before I realized it was off. This was with an Athlon 1800+ and a graphics card and a NB block in the loop Cooled with a Chavette heatercore. The only thing that clued me in to the fact that It was unplugged was that my temperatures were very high.
So, depending on your setup, and your luck, it might be very quick to shut down, or it might last for a few minutes, or it might self sustain.
Sleepy_Steve
07-06-07, 09:47 PM
No, I heard you actually have to drive the car for it to blow up, rofl, I think I've put 1000 miles on it in the 4 years I've owned it. I'm also super anal about how things are done and I've done like 8 years of research into the do's and don'ts of rotaries... We'll see how it fares once I get the oil leak straightened out for good and get it tuned the rest of the way. I'm thinking I'll pop the coolant seals before the apex seals. I can live with blown coolant seals, its just a wear issue like a head gasket, apex seals are avoidable if you build and tune just right.
Yeah, driving helps finish the job... That must be torture to not be driving it. But if you're taking care of it like that, its a great car. But I guess most rotary owners have a hard time getting used to rebuilding the motor every 45k or whatever obscenely short maintenance cycle they have. Glad to hear its doing well for you :beer:
I on the other hand put 20,000 on my car in the first year I've owned it... 6 months of that where I wasn't even driving the car. But the S-14A is a tough little car from what it has shown me... Just needs a little more brakes, and a lot more power lol.
core2due
07-06-07, 09:54 PM
Steam from WC rig. Now that is impressive! :bang head
It should be enabled by default, but it's worth checking to make sure the overtemp shutdown is enabled in your bios and the limit is appropriate for your CPU.
If you're really paranoid about this, here's a DIY flow sensor.
http://www.overclockers.com/tips1114/
Ya when I first saw the steam I was like holy **** but later it was funny.:eek:
Big Mike
07-06-07, 10:32 PM
Yeah, driving helps finish the job... That must be torture to not be driving it. But if you're taking care of it like that, its a great car. But I guess most rotary owners have a hard time getting used to rebuilding the motor every 45k or whatever obscenely short maintenance cycle they have. Glad to hear its doing well for you :beer:
I on the other hand put 20,000 on my car in the first year I've owned it... 6 months of that where I wasn't even driving the car. But the S-14A is a tough little car from what it has shown me... Just needs a little more brakes, and a lot more power lol.
KA-T, everything else is hype, or too much bread. brakes should be easy with the zillion and one Z32 mix and match options.
Voodoo Rufus
07-07-07, 12:03 AM
I've seen the water boil in my waterblock tubing before when my pump turned off from a bad DC connection. Took several minutes to do, and the computer didn't shut off until I took the side off the case and looked.
Sleepy_Steve
07-07-07, 11:37 AM
KA-T, everything else is hype, or too much bread. brakes should be easy with the zillion and one Z32 mix and match options.
Brakes are fine... Just need better pads / fluid. And maybe some brake ducting. But after boiling my fluid at VIR this past spring, I need to fix that before I go back to a real track.
Yeah KA-T is where its at, torque... and cheaper initial investment than an SR. Only problem is I have a lot of other things to take care of with the car - piston rings and timing chain - before I think about giving it more power.
Man are we off topic or what lol.
What happens when your pump stops?
bad things happen
SeventySevenRD
07-10-07, 09:17 PM
I had my pump stop on me once...it took about 10 min then the computer shut down.
gocartman2
07-11-07, 02:07 PM
im guessing with a t-line you wouldnt be so well prepared, but a reservoir would handle more of the heat, i might get rid of my res though really not happy will the refilling of it
thideras
07-11-07, 02:13 PM
im guessing with a t-line you wouldnt be so well prepared, but a reservoir would handle more of the heat, i might get rid of my res though really not happy will the refilling of itIt doesn't matter how much water you have in your loop...cause the pump isn't moving the water...
bryan_d
07-11-07, 02:31 PM
what is really weird its before this incident, I couldnt oc past 280 fsb no manner voltage, mult, htt, etc, now I can go up to 3G @ 1.45 40C at full load ???? is not stable though (crappy psu), but I will be upgrading soon.
Burn in theory?
I remember when I had my first watercooling kit, with the Hydor L40II, I would always forget to turn the pump on. Incredibly the temperatures never rose much with my custom Copper Cap block. The internals of the block held a large volume of water, and the block itself consisted of a great amound of pure copper; the thermal capacity was very high for the system. I bet if my pump had stopped for my Swiftech Storm, it would have been a completely different story.
Pumps stopping with modern waterblocks, just equates to bad things.
bryan d
The res won't help. First of all, the thermal capacity of the coolant in most reservoirs is quite small. But as thideras said, even a five gallon res won't do you any good without the pump to circulate the coolant.
gangaskan
07-11-07, 05:07 PM
i'm glad i dont have a bay res anymore :) not to be off topic, but ever since i got my MCRES micro it makes things look better ... to me that is
When I brought my computer back up to school this spring I forgot to turn on my pump (has external PSU) and I ran my computer for ~15mins until I realized that my pump wasn't plugged in. I wasn't really doing any hardcore computing but the computer was up and running it never shutdown but I am sure it was getting close to the trip point (if there even is one). Ever since then I always plug in the pump before I even think about pluggin in my PSU. :beer: :beer: A blown processor because of a stupid mistake wouldn't be fun :D.
Future of watercooling :)
http://www.bit-tech.net/news/2006/05/01/water_rolls_uphill/
Anyone know where the BIOS setting for turn off temp went to??? Recently I have bought 5 or 6 motherboard and have yet to see this option. This option was on pretty much every motherboard a few years ago.
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