CPU Waterblock started to leak
Hi guys want to share that I encountered a issue with my CPU waterblock that started to leak water.
I have a Alphacool XPX Eisblock, sandblasted /frosty version. I've been using it now for 8months.
The other day I had a issue when I didn't notice that my LAING DDC pump didn't start and as result the computer was running for a while until it restarted and I noticed as I went into BIOS my CPU was running 107C.
I quickly caught that my pump wasn't running and did a quick shutdown and then restarted to make sure the pump would turn on.
I see it start and check too see if all is ok...
When the pump started to run you get this gush of water coming out from all sides from the CPU waterblock.
The heat had caused some issue with the block and water was now coming out from all sides from it. It was no small amount either. I quickly was trying to shutdown as much was dropping down to my graphics card right below.
I'm not happy to say the least. The heat build-up and the resultant pressure caused some issue with the block.
There was water down the whole backside on my GPU and running down the whole motherboard to the bottom of the case. The computer basically shutdown on it's own before I had time so shut it down. Pulled power and went to check damage.
It's a lot of work to drain and fill this system. Not something I enjoy doing.
Either way I had to remove and redo my VEGA 64 waterblock as there was water on the PCB, was running down from it as I picked it out from the system. I was suspecting it had fried with the amount of water on it. Water was in the PCIE port also. So many points of failure was evident to check later.
I suspected a dead GPU, dead motherboard and maybe dead CPU.
Either way I looked at the CPU waterblock next, I was just a little disappointed and wondering if it's utterly useless now. I wondered what was the cause of failure with it.
I saw it was not the fittings but the part that is the TOP and the middle part where you have your bracket for installation fit into that had leaked in-between. Had something cracked? No.
This waterblock is comprised of 3-layers compared to the usual 2-layer design with only the cold-plate and a top screwed onto it.
You only have 4 screws holding it together screwed from the bottom. The cold-plate had some water on one of the screws... Pressure had forced it out here. I saw there was water inside where there shouldn't be.
I screwed it open and the coldplate had held with it's black O-ring. Water hadn't leaked outside from it and the above middle part where you have your mounting plates for your socket attach. It was on the layer above where you have the top attach to this part with 2 transparent O-rings that had leaked. It was filled with water where there should be none. I looked around and saw no damage to anything. Why did it leak? Pressure?
Is this OK? Did the heat just cause too much pressure in the block so the O-rings could not handle it?
I looked over the whole thing but found no apparent fault. I just decided to dry it up and clean it up and hope that would do it. I was a little worried about the O-rings. They apparently weren't that good as they should be.
After several hours of redoing and cleaning up the mess I went to test the system again if it was still working after filling and redoing the loop and making sure it wasn't leaking again. Too my surprise the system worked and nothing was wrong.
I did my air-bleed and filled up the reservoir to full and started to use the computer for a couple hours. All seemed OK until I started some heat load. As soon as the water got a little warm I saw a drop of water form and drop out from below the CPU waterblock again. ... Panic and shut down!
I quickly dried up the water that had dropped once again on my GPU and checked things. Why is it still leaking? What has gone wrong with it? It was just a single droplet but enough to cause damage it if goes to the wrong place. I had made sure the O-rings where sealed properly and all.
I went to check pressure in the system... PSSSHT!... Too much pressure... Air wanted out from the system as I opened the reservoir. Ok, maybe it's still a issue.
I remove some water from the system to not have as much and retest and get the system warm. I keep testing and have some toilet paper to take any excess leakage. It keeps leaking a droplet now and then. The O-rings are clearly not doing their purpose properly. My CPU block is the weakest link and I have a pressure problem in my system. Any excess pressure and my system wants to release it through my CPU waterblock.
I kept going and opening up the reservoir and sure enough there was too much pressure every time. Air&water wants out from my loop. It's and issue when the weakest link is seemingly the O-rings in my CPU waterblock. I never had the issue it wanted to leak before and I've noted the pressure issue before but it hadn't caused leakage as far as I had seen yet but after this incident.
The block keeps leaking as of this moment, not by much but enough to be a problem. You can keep a little paper there to soak it up before it hits any other parts. It has enough time to dry before another leakage.
I'm a little more than pissed, I need to take out the block once again to maybe redo the re-assembly but not sure if that will be enough to keep it from leaking again. It can't take the pressure my system keeps building up.
Can O-rings shrink with time? These are not the regular black O-rings, some transparent ones. I noticed they were kinda on the slime side and not putting good pressure against the top part.
It's the point of failure as far as I'm concerned. I never thought the CPU block would leak in this way as it has done now. And I wonder why it's doing it now. It's been all good for a solid 6months at least. I've had pressure be high before and it hasn't leaked then.
Gigabyte X570 AORUS XTREME, Ryzen 7 3800X 4.4Ghz, 4266/1900 MEM/FCLK, 18.104.22.168.76.tRFC 650 1T 1.600V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron E-die 16nm)
OLD: Biostar x470GT8 Ryzen 7 1700 @ ~4.0Ghz CPU, 3200Mhz RAM ...