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Unusually high WC temps?

post #1 of 5
Thread Starter 
Here's my loop:

res >> mcp655 > mcr320 >> xspc rasa >> xspc rx120 >> gpu #1 >> xspc rx240 >> gpu#2 >> res

gpu temps are great, my 470s are at 1.1 volts and idling in the 30s, loading in the 40s, almost never getting to the 50s except in furmark or kombustor.

cpu temps are sorta crappy though - I'm at 1.32v, 4.2ghz, and reaching temps of nearly 70 in games, 80 and even a bit higher in prime 95. the temps were pretty much on par with this even when my loop only had 1 gpu and neither of the rx radiators - if I remember right, my old corsair h50 cooled considerably better than this.

edit: so I've determined beyond pretty much any doubt that something is horribly wrong with the cpu block itself. I reseated the thing, backed down the OC to 4.0ghz and 1.27 volts, and now I'm hitting low/mid 80s in prime 95 after 10-15 seconds. so I guess the next step is to take apart the block and clean it out for gunk and what not. can anyone tell me how to do this?
I'm pretty sure the TIM job was fine, and the mounting is tight and even as far as I can tell. I did end up mounting the cpu block so that the inlet port is on top of the outlet port, as opposed to side-to-side, which is what I usually see. could that be causing the crappy temps, or is there something wrong with the block itself? thanks for any help...
Edited by tommy1993 - 1/14/11 at 9:30pm
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post #2 of 5
You have plenty of cooling capacity in that loop and the fact that the proc heats up so quickly points to either a bad mount or an issue with the block itself, as you seem to have (correctly) determined. What coolant/additives do you run in the loop and when was the last time you serviced the loop? How old is the loop? It's 'possible' that there is some sort of manufacturing defect in the block causing the drop in performance, like a massacred pin grid or something, but that's highly unlikely. More likely is a clog caused by additives, probably UV dye. If you don't run any of that then it's possible that it's a mounting issue still.

Edit: In my build log you can see several pics of my very gunked Apogee GTZ. I'll never use anything but distilled and PT-Nuke in my loop again. I spent some time carefully cleaning the block with an old toothbrush and a solution of hot/boiling water and white vinegar. People also use citric acid, ground-up limes/lemons etc (there's a good guide using limes around here somewhere). I'd disassemble the block as much as possible, ideally down to the baseplate and then clean that by itself. Soaking it in a citric or otherwise acidic solution will clean it well, but don't let it sit for too long, even an hour in a strong solution can damage thin pins or start to degrade mounting threads. I'd say max 30 minutes, then rinse, toothbrush and repeat if needed.
Edited by SaltwaterCooled - 1/14/11 at 10:45pm
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post #3 of 5
Thread Starter 
slightly unrelated, but it'll help me out...

http://www.koolance.com/water-coolin...product_id=873

^^ will that work with two EKFC470 blocks?
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post #4 of 5
Quote:
Originally Posted by SaltwaterCooled View Post
You have plenty of cooling capacity in that loop and the fact that the proc heats up so quickly points to either a bad mount or an issue with the block itself, as you seem to have (correctly) determined. What coolant/additives do you run in the loop and when was the last time you serviced the loop? How old is the loop? It's 'possible' that there is some sort of manufacturing defect in the block causing the drop in performance, like a massacred pin grid or something, but that's highly unlikely. More likely is a clog caused by additives, probably UV dye. If you don't run any of that then it's possible that it's a mounting issue still.

Edit: In my build log you can see several pics of my very gunked Apogee GTZ. I'll never use anything but distilled and PT-Nuke in my loop again. I spent some time carefully cleaning the block with an old toothbrush and a solution of hot/boiling water and white vinegar. People also use citric acid, ground-up limes/lemons etc (there's a good guide using limes around here somewhere). I'd disassemble the block as much as possible, ideally down to the baseplate and then clean that by itself. Soaking it in a citric or otherwise acidic solution will clean it well, but don't let it sit for too long, even an hour in a strong solution can damage thin pins or start to degrade mounting threads. I'd say max 30 minutes, then rinse, toothbrush and repeat if needed.
yeah i learned the hard way when i first got into WC, NEVER use additives or dyes because it just clunks everything up. Stated above, just find the manual (online somewhere) and take it apart and clean it with a tooth brush, that will most likely be your best bet.

too bad you dont have another block you can test to see if its a bad block.
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post #5 of 5
I was going to make a similar thread cause I'm new to watercooling so don't really know what I should be expecting as far as temps are concerned,

EK Bay Spin Reservoir > MCP 655 > Apogee XT > XSPC RX360 > Reservoir

I'm only using distilled water @ the moment.

RX360 has 3 GT-15s @ 1200 RPMs or so in push. No pull fans.

i7 950 @ 4200mhz
idle temps 38c
linx load temps 72c max

I'll be changing out my white tubing for black later today and would like to know if theres anything I may want to check out to make things better. Are these temps normal?
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