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WC'ed, now higher temps

A

autobot

Limp Gawd
Joined
Sep 1, 2004
Messages
416
Hey there folks. Well I just completed installing a water cooling system in my computer and now according to the BIOS on my MSI board and nTune my temps are higher than before when I was on air cooling. Here are the system specs...

computer:
A64 3500+ (clawhammer)
MSI K8N Neo2 Platinum
1GB Patriot PC3200 low latency
ATi 9800pro 128mb
SB Audigy2 ZS
WD 80GB SATA HDD
Lite-On DVD-CD/RW combo drive
Ultra 500watt PS

Cooling:
DD TDX A64 1/2"
DD Maze4GPU Acetal-topped 1/2"
DD Dual-120 HeaterCore
DD Dual-5.25 Resevoir
AquaXtreme 50Z-DC12
(2) AOC 120mm Aluminum fans
Distilled water w/ 2 drops of anti-algea and 5 drops yellow UV dye
Arctic Silver 5

Before I installed this WC equipment I was running at 39C at idle, 45C load on a the stock A64 heatsink assembly w/ AS5. Currently with the watercooling system I'm running at 41C and 48C load.
These temps are according to the MSI K8N Neo2 Platinum's BIOS and Nvidia's nTune. I've attached a Compunurse thermal probe to the side of the A64's heatspreader and its temps are way different than what the BIOS is reporting. The Compunurse thermal probe reads 26.5C at idle and 29.2C at load.
Now which one of these units am I to beleive? I've read of the Neo2's issues with reporting correct temps, but they can't be that far off. On the other hand based on the input of the Compunurse thermal probe, that would mean that on air cooling I would had been getting around 26C at idle and that seems a bit off. I would greatly appreciate any input you folks may have. Thank you!
 
sounds to me like theres a kink in a hose, the waterblock isnt properly seated, or you put on waaay too much thermal paste

check those and report back
 
Is the heater core internal or external? Also, what are the stats on your pump? The tdx is a pretty restrictive block...
 
hi

The pump is an AquaXtreme 50Z-DC12 It's specs show 700l/hour.
The pump-flow should be high enough to make sure the fluid gets cooled enough.( >1 l/min).
But the more components you use in the circuit, the higher the resistance.And so, less flow. :(
You can test it by filling a bucket with an litre-indication.
Clock for 1 or 2 minutes and calculate your flow.
 
Do all the above and make sure the radiator air flow is not restricted. If still having problems I'd put your air cooling back on, check temps, then reinstall the water system. If still having same results then it is the system design, bad component(that reminds me, check to make sure the nozzle in the tdx is positioned correctly), or bad sensor.Just try and eliminate one at a time.
 
Do you have the plumbing hooked up correctly? If the tubes are reversed on the TDX it will cause bad temps. How bout some pics of your setup to help us out??
 
As far as I can tell, everything is installed and routed correctly. The system goes as follows....
>>pump>>CPU>>GPU>>HeaterCore>>Resevoir>>pump>>

The TDX is properly mounted with the instructed amount of AS5 as per their site.

Here is a pic of my setup...
04200002.JPG


and in the dark...
04190007.JPG
 
Just out of curiosity, try mounting a fan to blow around the cpu socket. Yes I know A64 thermister is in the die, just a hunch about stagnent air around cpusocket.
 
What tubing are you using? Is the tube from the TDX to the GPU squished at all?

The loop looks like it's set up right, and the TDX is plumbed correctly. I don't think that the Maze4 gpu block cares. Do you have pics of your radiator setup?
 
I still think the pump is to weak, to deliver a high flow-rate.
The problem could be the mounting height of your radiator.Try lowering it, a lot.
It's possible the pump can't press-up enough liquid to cool.
I have a pump that delivers 2600litres/min, true, but after, reservoir, tubes,GPU,CPU and 2
big radiators and a deliver-height of 1 m , there remains a flow of 2 litres/min :( .But that's more then enough.

Everything else looks good in your pics.

Check flow ;)

Grtz
 
As a closed loop, the height doesn't matter as much as you'd think. The longer tubes to/from the rad don't introduce much restriction either, compared to other rad orientations.

I have the same pump (Swiftech MCP600 is the same), an RBX, a Fusion HL, and a Bonneville heater core (double 120mm rad). There isn't enough restriction in the loop to cause trouble for the pump. This pump has enough head to keep it pumping better than an Eheim 1250 in a loop such as this. DC pumps aren't generally weak little girly-pumps, especially this pump and the MCP650. The MCP350 has great head, but the 90deg input kills the flow.

Have you taken the TDX off the cpu, cleaned the surfaces, reapplied AS5? Are the block hold-downs tight enough, with even pressure? Does the tubing get squished in a bend at any point in the loop?
 
I have already reseated the TDX twice, cleaning and using a new dot of AS5 in the middle of the IHS. None of the hoses are kinked. I'm using McMaster Carr MasterKleer 7/16" ID tubing. The tubing is nice and flexable with a thick wall. My heater core setup is majorly ghetto, but its a temporary build until I put everything in my custom Sun Microsystems casemod.
Here are some pics of my ghetto HC setup...
04210001.JPG

04210002.JPG

04210003.JPG

In these pictures it looks like the face of the HC covered in duct tape, but it is not. There is a cardboard/duct tape stand that holds it up off the surface of the case. I ended out getting a few brass threaded nuts like the ones that DangerDen uses for its water block hold down equipment. :)
 
please remove that cardboard-construction.And lower your heatercore, you've got long enough tubing.Make sure you're air-intake is optimal. I don't care if it blocks the air-intake or not, just try.Then you've ruled out the pump-flow and possible air-obstruction.

Always make a standard-setup, without all the modding, eh things. :rolleyes:
Then you know for sure what your setup can perform.Then mod ;)

It's all trial and error.

Grtz
 
Lord_Hadronous said:
...check to make sure the nozzle in the tdx is positioned correctly), or bad sensor.Just try and eliminate one at a time.
Click to expand...
Hmm- I just got a TDX but haven't installed it yet..... didn't know that the nozzle had to be installed in a certain way. Can someone explain this, please?
 
Looks like you might not have enough airflow going through your heatercore. It's sitting so close to the top of your case.
 
Well I fabricated a new stand for my heatercore using 3/4" angled aluminum stock, 1/8" aluminum rivets and some aluminum perforated sheet metal and that seems to have dropped my temps by 2C. Here is a pic of the new stand...

04260001.JPG
 
Fanatik said:
That looks cool. Where did you get that preforated metal?
Click to expand...

I got the perforated aluminum sheet metal at a local (Clackamas, Oregon) metal recycler for only $2 for a 3-foot by 4-foot sheet. :)
 
autobot said:
Well I fabricated a new stand for my heatercore using 3/4" angled aluminum stock, 1/8" aluminum rivets and some aluminum perforated sheet metal and that seems to have dropped my temps by 2C. Here is a pic of the new stand...
Click to expand...

that's some improvement, you see every little bit helps,heu maybe try reversing airflow through the rad,and look what happens.

Grtz
 
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