Overheating problem in open loop

Strikeforce90 · 10 Mar 2021 at 16:30

I have two gigabyte 1080ti waterforce aourus extreme with built in waterbkock
I am using one ekwb extreme 240 for both of them for 3 years.
Last week my pump got stuck.I opened it and fixed it.
About 1 month ago till now one of my geraphic card after about 15-20 min under load gets 78C,but my another card is about 52-58C
Both of them was working about 46-49C
I read that my gigabyte 1080ti waterbkock cant be opend.
But I disassembled the whole loop and cleaned it as EK said
Whats is wrong with my loop?

Strikeforce90 · 10 Mar 2021 at 18:05

agnes said:
Check your warranty, if it's no longer valid, go ahead and take the block apart, it's likely gunk build up.

I searched a lot,the block cant be apart

Strikeforce90 · 10 Mar 2021 at 18:09

Jay85 said:
Whats your flow rate on your pump? Does the speed gradually decrease?

Vital information as it will determine whether the blocks are blocked or not. Mine did this and the cpu block was absolutely hammered with gunk. The the flow rate would start high then drop until the fluid is barely moving.

I dont know how to find flow rate on my pump!
Please tell me how can See that?
But if fluid barley miving,how another geraphic card that connected to the same loop is 50C?!
In my mind,If fluid barley moving both of them should get high temp

Strikeforce90 · 10 Mar 2021 at 18:12

xb8browney said:
Sounds like something maybe entered the GPU block.

i can see something is in block but that thing is in both blocks
One is 50C and the other one 72-78C
And I saw a video that showed because of that thing temp changes around 5C not 22-28C
Maybe I am wrong but I am searching for 1 week

Strikeforce90 · 10 Mar 2021 at 18:27

Jay85 said:
It will speed up as it leaves the pump, hits first gpu and its fine then slows down as it hits second gpu thats possibly clogged hence your difference in temps.

By the sounds of it, both probably are clogged but one worse than the other. You'll need a flow meter to see your flow rates, a digital one is best so you can see an actual reading.

Is it possible that flow rate of pump decreased or pump cant do its job?
Maybe its some how got damaged because of clogged or ...
Last week that I cleaned it,it looks good but I am not sure that it works fine
Are you sure that problem is the block not the pump or radiator or the fans of radiator or ..?

Strikeforce90 · 10 Mar 2021 at 19:06

xb8browney said:
Buy a set of triangle security screw bits and take it apart?

I should to be sure that its certainly block problem

Strikeforce90 · 10 Mar 2021 at 19:15

MikeTimbers said:
If the second block is plugged it would affect flow uniformly through the loop and affect temperatures uniformly. If on the other hand part of the second block is plugged, that part of the chip would not be cooled properly. So, is there a potential blockage in the second block? Yes, there could be.

There also could be a different cause though. It could be that the overheating when the pump was not working has caused the thermal compound on the second block to dry out and it's no longer providing an effective heat bridge.

Is it possible that just one of thermal compound dry out and the other one nothing happens?

Strikeforce90 · 10 Mar 2021 at 22:09

MikeTimbers said:
yes, it is. if one had a thinner spread it would have dried faster than one with a thicker spread.

unfortunately there is one other scenario which is that one of the cards was damaged when your pump failed and now doesn't control itself properly. I would really suggest dismantling both cards down to PCB, heat plate and cover. clean the pcb, inspect all the components looking at the caps in particular for any sign of a domed end. check the thermal tape and see if it needs replacing, new paste on the chips. clean out the heatplates with a toothbrush and some toothpaste (not joking). clean the inside of the covers the same way.

I will do that
Tnx

Strikeforce90 · 12 Mar 2021 at 08:48

Strikeforce90 · 12 Mar 2021 at 09:07

I really dont know what to title this...
You can not take it apart with out destroying it.
The face plate cover, and the top cover at the ports are glued on. How do I get this thing apart for cleaning?

When I called Gigabyte,
ME: How do I clean this card?
Gigabyte:" we do not recommend cleaning them."
ME: Do I just put it back and let it break, then send it back?
Gigabyte: " we dont recommend that either. "

In these two topics you can see no one gets a correct answer:

https://forums.overclockers.co.uk/t...us-gtx-1080-ti-waterforce-wb-xtreme.18837442/

https://hardforum.com/threads/the-gigabyte-facepalm.1956254/

Please help meeee

Strikeforce90 · 12 Mar 2021 at 10:41

cammmy said:
It my not help but try backflushing the blocks with soapy water. Take the cards and pump out, put the input to the pump into a bucket of warm soapy water, connect the pump outlet the the waterblock OUT port, put the out port Into a drain or back into the bucket. Turn the pump on and let it run. Do the cards one at a time.

Thoroughly flush the blocks with clean water before re-installing to remove any soap.

Doesnt it hurt the pump?
Or dirts get stuck in pump?

Any other idea please?

Strikeforce90 · 12 Mar 2021 at 11:04

Mr Mcgoo said:
i second this. they use a standard Chinese size screw that is not a common size over here. The triangle screw driver should work and be easy to find. You could also use a torx screw driver (be careful in case of stripping the head.)

What about the glue that Others mentioned ?
Because of the glue,it is hard to open and how find specific glue?

Strikeforce90 · 12 Mar 2021 at 20:54

cammmy said:
It sounds like backflushing is the least invasive option. If you are really worried, just start with plain water and put it down the drain. If it's screwed and glued together, you would need to get the screws out and heat the block to loosen the glue, then clean it all off and replace it with something suitable on re-assembly

Edit: have you tried swapping the cards around? If you try that and the problem follows the cards, it's likely an issue with the blocks, if it stays the same, it could well be an issue with the pump.

I swapped the cards and I got sure that in one of them water barley moves
I should try to open it or add somthing in loop to somehow clean inside the block
I afraid to open the block,unless some one who did that before,tell me exactly what to do
I dont know where is the glue and when I colud open it,how should I fasten it?
How should I heat the block?

Strikeforce90 · 12 Mar 2021 at 20:57

Mr Mcgoo said:
The glue in question is the glue used for the faceplate. The aluminium shroud on the front with the eagle on hiding the screws. This could be a pain to get off as using any substance to clean the glue off could damage the acrylic block. Not sure what is best to use to remove the glue. Maybe someone else knows a thing or two?

Have you done it before?
If I remove the glue on front of the card,rest of it is as the EK blocks?

Strikeforce90 · 12 Mar 2021 at 20:59

cammmy said:
That's why one of the suggestions was to put the output down the drain, then it's only clean water but it will use more. With the bucket suggestion, you would have the pump drawing from the top of the bucket and put the output at the bottom. Then any debris heavier than water will sink to the bottom and not be drawn Into the pump.

I should try this
How much soap should I have add to 1litr water?
How much the loop should run in this way?

Strikeforce90 · 16 Mar 2021 at 16:57

cammmy said:
I wouldn't use a huge amount, just enough so that it can help loosen any compacted debris. What caused the pump to fail. Was it growth in the loop?

Yes
Everytime I start the pump again,is stops working and I should open it,then it will be ok.

Strikeforce90 · 18 Mar 2021 at 05:04

cammmy said:
Sounds like you need to take apart and clean everything you can. Pump, CPU block etc. Take out the radiators and backflush those too. I would also recommend getting a small bottle of brewing sanitiser and letting it soak inside all the components for 5 mins before rinsing it out. It's possible the growth has clogged various parts of your loop.

Run the pump from a bucket to the sink with clean water after you have cleaned it out. If it still has issues, you may have a dead pump.

I cleaned the pump,radiator,fittings,tubes,...
Everything except the gpu bkock that I afraid to open it
I testet the pump and it is ok