View Full Version : Still bad watercooling temps
hi all i am haveing a problem with my watercooling setup, i just took apart the whole system and put it all abck together from scratch, i even took out the whole motherboard and put the waterblock on with the board in my lap so i could make for sure that it was seated correctly on the cpu, and after all that, about 4 hours work i boot up my system to see the temps are EXACTLY the same as before i had taken the whole thing apart! my system:
abit th7-raid mobo
P4 1.7ghz non-overclocked
DD mazeP4 waterblock
DD cooling cube
120mm fan pulling air through cube
4"x4"x4" reservoir
eheim 1250 water pump
i put the radio shack thermal compound on as i did not have any arctic silver 2
temps:
idle wile typing this 39C
full load 44C
case temp 31C
can anyone please give me any help as to what could possibly be wrong?i even used water wetter, any help or comments are greatly appreciated as i am stumped!
I am using about the same setup except I have 2 85cfm fans on the cube and am running a 1333 tbird @1530 and my temps are the same as yours at full load ,though a little cooler at idle 31c I too have tried reseating the block with the same results. If you figure this out let me know .
Derek
These temps seem right to me. You have to understand that water cooling alone is not much more effeicent than air. A lot of people seem to think that they are going to get some below ambient temps with just water. It aint gonnna happen on the todays Cpu's. Athlons or Pentium 4's are Hot. In order to obtain lower temps you will need to start peltier cooling. That or a Vapochill unit is the closest to a practical way of cooling your gonna get with CPU's in the Gigahertz. Otherwise you can try getting a temp probe to confirm those temps but im pretty sure they are right.
SteenkyBastage
08-19-01, 07:49 PM
Originally posted by mEKbOY
These temps seem right to me. You have to understand that water cooling alone is not much more effeicent than air.
eh...yes, those temps seem ok to me, but as far as watercooling not much more effecient than air...? maybe i'm not following what you meant, but water is MUCH more effecient at cooling.
one thing i might ask is what the flowrate of the pump is. i've heard (but not tested) that too much waterflow actually will raise temps (once again, i haven't tested. could be a load of crap, but it may be worth checking out).
i personally use a 700 GPH danner pump and with my 1.2 Athlon at 1.47 my full load is 38C. but my ambient (room) temp is 24C. my ambient (temp flowing into your radiator) temp will relate to my processor temps. (ex: raise my ambient 5C, the cpu load will raise 5C).
just a couple of things that may be worth checking...hope it has helped a bit
Sorry for not being clear on that.. What i meant is that water cools heat much faster than air.. This is proven in the minimal differnece in load and idel temps with water while the differnece between load and idle temps with air are high. As fas as overall temps Plane water not is extremely better than air as a lot think. With a a good healthy setup on a high end athlons are around the 40c mark on load. With my Swiftech 462 with a delta 69cfm fan my temps were about 6c higher at load. But then again not overyone had a swiftech and a powerful delta.
I believe your comment about water flow is true, Like pulling the thermostat out of a car will raise temps under heavy loads because the water isnt staying in the radiator long enough to cool. But the pump that comes with the dangerden kit is 158gph I believe. Has anyone tried a bigger pump with this kit and gotten cooler temps?
Derek
William
08-19-01, 08:19 PM
it depends on the air setup. I think the shack goop is holding you back, did you apply like you would Artic Silver 2? That will help somewhat, but not a whole lot. What is the flow rate on that pump? If it is above 800gph you are probably pumping water too fast. Your temps aren't horrible, so I wouldn't fret about it.
thank you all for the reply's, my pump is rated at 317gph so that is not too much :) my main reason for this post is that i want to try and overclock this p4 to 2ghz (or more) but with my temps the way they are i do not believe i will be able to do this withought shortening the life of the cpu SEVERELY,i know arctic silver 2 would help but not more then a degree or 2, do u think another 120mm fan on the radiator will help? as i am sucking outside air through it already.
William
08-19-01, 10:29 PM
another 120 should help in a push pull setup a bit. I would try overclocking, most p4s are going to run really hot anyways, so you should be fine. Try it and see.
ok i think i will add another 120mm fan onto the radiator then, and i wasnt aware that the p4 got so hot, i was under the impression that the athlon ran hotter?if not i have been horribly missimformed :(, anywho how hot do u guys think i should let it get while overclocking as to not shorten the life signifigantly of the cpu?
Well i dont that much about pentium 4's but my friend has one running at like 55c under load so you should be fine. My usual goal for athlons which are hotter is to keep it under 50c on load. Just my preferences though.
Your temps seem ok since you are runninga at such a high speed. At 1600 mhz 1.91v my temps max out at 44c also. When I crank up the voltage to 2.22v and 1702 mhz my max temps are near 50c. I am puting out so much wattage the temps I am getting seem ok to me. In a few weeks I may try a second 120mm fan just to see if my temps improve.
DD cube with 1 108 cfm sucking air
Maze2 (new revision)
Maxi-Jet 1200 295 gph
4x4x4 resivoir
Yeah Bender.. wa have very similar water setups. I have Maze 2 block, a smal resocoir with dual 150GPH pumps and a large 12'x7' radiator with 2 120mm fans. On my Athlon 1ghz at 1.54ghz with 2.13 volts my system gets upto 48c on load so things seem to be right to considering the voltage.
Newbie_Doo
08-20-01, 11:01 PM
Originally posted by touser
thank you all for the reply's, my pump is rated at 317gph so that is not too much :) my main reason for this post is that i want to try and overclock this p4 to 2ghz (or more) but with my temps the way they are i do not believe i will be able to do this withought shortening the life of the cpu SEVERELY,i know arctic silver 2 would help but not more then a degree or 2, do u think another 120mm fan on the radiator will help? as i am sucking outside air through it already.
I run 80 GPH (on a C2-600@945) and get 2-3C over ambient. Try restricting the flow and see if the temps drop. I think that 300+GPH really is too much flow and the radiator doesn't have enough time to dissipate the heat. It is worth a try, and if I am wrong, you can post your results here and disprove me.
Anthony
Originally posted by Newbie_Doo
I run 80 GPH (on a C2-600@945) and get 2-3C over ambient. Try restricting the flow and see if the temps drop. I think that 300+GPH really is too much flow and the radiator doesn't have enough time to dissipate the heat. It is worth a try, and if I am wrong, you can post your results here and disprove me.
Anthony
ok i will give that a shot! but 1st of all how would i restrict the flow?and how much should i restrict it?
You can restrict the flow by putting a loop in your hose comming from your radiator. That will slow it down a bit. or use a wire-tie to pinch the hose.
Another thing you can do to see if the block is sitting right on the CPU is to push on it just alittle bit and see if the temps change. If they go down, tighten one hold down screw at a time. Then do the same to the next working from corner to corner.
Thats how I got my waterblock on.
Originally posted by Crappy
You can restrict the flow by putting a loop in your hose comming from your radiator. That will slow it down a bit. or use a wire-tie to pinch the hose.
Another thing you can do to see if the block is sitting right on the CPU is to push on it just alittle bit and see if the temps change. If they go down, tighten one hold down screw at a time. Then do the same to the next working from corner to corner.
Thats how I got my waterblock on.
thank you for the help crappy!, but i know for a fact that the waterblock is on there perfect, i completely took the whole computer apart piece bye piece, took the motherboard out and put it on my lap and tightened the block on right there and made sure it was on there perfect :)
The Overclocker
08-21-01, 08:28 AM
it might have been sid before but try and put a kink in the hose just before the radiator, it will slow down the water going through it giving it time to cool down
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