tiborrr

I'd just flush the res with gallon of distilled, drain and repeat. Otherwise: - remove 4 rubber decouplers, body will come off - remove 4 philips head screws, front plate will come off - remove a bunch (around 10) torx head screws, front transparent reservoir face will come off I'd really flush with water first before going anywhere near disassembling (any) water cooling component.

Yes, XC7 1151/AM4 will fit your Sabertooth motherboard.

Yes, you can, as long as it submerged in water and not placed in a stagnant flow water pocket it will do it's job.

Always consult http://www.coolyourgpu.com As you can see, your GPU is compatible with the following CORSAIR XG7 water block: 2080 Strix

To be honest, rubber (EPDM or norprene) tubing is normally also coated with white powder called "bloom". This is to prevent rubber tubing to decay prematurely under the effects of UV light. What you saw in your loop could perfectly indicate your issue.

That is physically not possible, you're being tricked - this is called an observer effect. Moreover, the only measurable stress test is a synthetic benchmark to measure maximum temperature of the system and components. You can't do it since your manually overclocked system is unstable. Any other temperature reading or making assumption based on observed values under non-uniform temperature load is severely skewed as pooling rate is not as fast as the frequency switch on a modern chip like Ryzen 3000.

In horizontal position the pump is so strong it will create a vortex, essentially drawing air inside the pump volute even if you fill it to the brim.

Forget about manual OC, you cannot run these cores at 4.4GHz on these tiny 80mm2 chiplets. Heat flux is just too high. The dies are not able to transfer heat to the IHS in time. Moreover, games-wise you will have better performance running default settings with PBO enabled as the chip will boost higher than what you have set up manually. Manual OC is dead with Ryzen outside extreme overclocking with liquid nitrogen or other means of refrigeration.

Wait, what? This is not how this is supposed to work. @OP: these temps are perfectly in line with what's expected with custom loop. It is a common misconception for people to expect much lower temperatures. You need to understand the temperature of the core are basically junction temperatures of the IC and these usually run 30-50°C higher than water temperature (which is basically your water block / coldplate temperature), even without any overclocking. Moreover, Ryzen 3950X tends to auto-overclock itself given the thermal headroom so you will get same 'high' temperatures compared to lower end cooler, but better performance because the chip will always try to clock itself as high as possible until it reaches certain temperature.

According to the QSG this pump is not supposed to be mounted horizontally. https://www.corsair.com/corsairmedia/sys_master/productcontent/WW_HXS_XD3_RGB_QSG_Web_AA.pdf

Yes, XD5 fits in the second compartment, right where you mention it. See here: https://www.corsair.com/eu/en/custom-cooling-configurator/downloadBuildGuide/?guide=91d0dbfd38d950cb716c4dd26c5da08a

According to GPU search page https://www.corsair.com/custom-cooling-configurator/gpu-search there's no compatible GPU water blocks for DUAL RTX2070S 8G EVO. It appears to be built on non-reference PCB.

Yes, that's true. Very easy.

Checking https://www.corsair.com/us/en/custom-cooling-configurator/gpu-search doesn't found any compatible block when looking for: - Zotac Gaming GeForce RTX 2070 SUPER AMP Extreme

I don't think anything will fit at all. HP Open X is a weird, sort-of proprietary case.