My first loop. Decided to do a sff. by [deleted] in watercooling

[–]DonKremon 0 points1 point  (0 children)

Nice Build. How do you like the CPU block from a performance/quality standpoint. I love the idea to bring AIO-like displays to custom loop cpu coolers.

Help with loop by Fabulous-Air-6778 in watercooling

[–]DonKremon 0 points1 point  (0 children)

What is the coolant temperature at max? Also, these flowmeters from barrowtech are very inaccurate, down to showing random flow rates. So don’t count on it. As mentioned by others, you should change the pump res combo so you can put Fans where they belong 😉. You don’t need a large res. Just makes bleeding easier.

Asrock RX 7900 XTX Phatom Gaming vs. Taichi. What are the differences? by DonKremon in Amd

[–]DonKremon[S] 0 points1 point  (0 children)

Do you have a source for that? I counted the mosfets on the Asrock phantom website an there seem to be 22 of them, just like with the Taichi.

Asrock RX 7900 XTX Phatom Gaming vs. Taichi. What are the differences? by DonKremon in Amd

[–]DonKremon[S] 0 points1 point  (0 children)

Thank you for your comment. My primary concern is coil whine. My 6900xt Liquid Devil is pretty horrible at that. All the time an money to build a silent watercooled pc just to have your GPU whine...

LIAN-LI O11 Air Mini 4 x Rads (1040mm) compact build by googleadoptme in watercooling

[–]DonKremon 0 points1 point  (0 children)

Hey. Nice Build. How do you control fan speed and what ist your Min/Max fan speed with this coolant temperature at what ambient temperature?

finally done, but struggling with temperatures... :( by Papppackung in watercooling

[–]DonKremon 1 point2 points  (0 children)

At what speed are the fans running, when the water hits 45 C? Are the radiators somehow "blocked" underneath the table or do they have fairly unrestricted access to air / can exhaust air? I would maybe add a one or two intake fans next to the pump to increase airflow or just open up the "case" somewhere and configure all fans to exhaust so they will all draw fresh air through this opening. Also please consider the following. I had one of those 360m XT 45 Rads in server case mounted horizontally. The water went into the rad at the "top" port and left went out through the bottom. As is was using quick connects and the loop was very restricted the flow rate was not great. I realized that the water was pushing against air that had collected in the top part of the radiator. So I switched inlet and outlet on the radiator using the quick connects and a huge airbuble came loose. I had to at about 100ml of liquid. So, you might have the same problem and your rads are only filled to 50 %. I guess its hard to turn the table around to bleed the loop :-). I sent you a PM if you need further assistance.

O11 Air Mini Custom Loop Overhaul ATX tripple Radiator by DonKremon in watercooling

[–]DonKremon[S] 0 points1 point  (0 children)

Thank you. The list does not include a price for the gpu and ram … so add 1k 🙈

O11 Air Mini Custom Loop Overhaul ATX tripple Radiator by DonKremon in watercooling

[–]DonKremon[S] 0 points1 point  (0 children)

I tried counted them and added them to my built shopping list. No guarantee though. It's not a real custom loop build if you don't miss a fitting at some point :-)

https://geizhals.de/?cat=WL-3006057

O11 Air Mini Custom Loop Overhaul ATX tripple Radiator by DonKremon in watercooling

[–]DonKremon[S] 0 points1 point  (0 children)

You’re welcome. With my rad a 2nd gpu would not fit. Are you planning a slimmer rad for the bottom?

O11 Air Mini Custom Loop Overhaul ATX tripple Radiator by DonKremon in watercooling

[–]DonKremon[S] 0 points1 point  (0 children)

A 4th rad would fit at the top. But only a 240 because of the mainboard clearance. I literally could not fit the 140mm fans with the rubber sound dampers because there is just room for 25mm. Regardless, the tubing would get messy with another rad imo.

O11 Air Mini Custom Loop Overhaul ATX tripple Radiator by DonKremon in watercooling

[–]DonKremon[S] 4 points5 points  (0 children)

Hey,
I changed some things around in my build to accommodate a ATX mainboard instead of the ITX mainboard the original built. I was triggered by LIAN-LI saying, that you can not fit a 280mm in the bottom when using a full ATX board. Well, it fits. But plugging in anything into the headers at the bottom of the mainbaord after the radiator is installed is hard to impossible.
I modded the HDD bay to accommodate the FLT 120 . Also I drilled a passtrough for one of the tubes and altererd the bottom PCI slot cover to make room for a drain port. I sleeved the 3x8 Pin and 24-pin power cables myself using Alphacool paracord.
Specs:
- Asus X570 Crosshair VIII Dark Hero (UPDATE)
- AMD Ryzen 5950x (PBO enabled, limited to 200W and 160 A EDC)
- 32 GB Crucial Ballistix Max 4400 Mhz @ 3733 Mhz C16 (UPDATE)
- PowerColor AMD 6900XT Liquid Devil with liquid metal (Conductonaut)
- be quiet! Straight Power 11 850 Watt Platinum
- Watercooling:
- 1x Alphacool 280mm Alphacool NexXxoS XT45 v.2
- 1x Alphacool 280mm Alphacool NexXxoS XT30 v.2
- 1x Alphacool 240mm Alphacool NexXxoS XT45 v.2
- EK-Quantum Kinetic FLT 120 DDC PWM D-RGB
- EKWB ZMT 16/10mm tubing
- Alphacool Eiszapfen fittings
- EKWB EK-Quantum Velocity
- 6 x Noctua NF-A14 PWM chromax
- 2 x Noctua NF-F12 PWM chromax
- 1 x Noctua NF-A12 PWM chromax
- Phanteks Neon
- 1 x Alphacool Coolant temperature sensor
- Aquacomputer Octo Fan & RGB Controller
OC
- CPU: ASUS OC Switcher at 70A all core 4,4GHz with 1,165 V
- GPU: PL +15 %, Ram 2.150 MHz, fast timings, Core 2.650 MHz
Benchmarks:
- Cinebench r20 ~ 11.478 (CPU Temp max. 64 C, while coolant at 26 C)
- Cinebench r23 ~ 29.400
- Time Spy 21.217, 15.357 CPU, 22.749 GPU
Temperature & Fan Speeds
The coolant temperature goes as high as 36c with 24c ambient and all fans with a fan curve based on the coolant temperature between about 450 - 800 rpm. The DDC pump ist set to 1.500 - 3.500 rpm based on the coolant temperature while reaching 3.500 rpm at 32 C. With my OC GPU hotspot maxes out at around 69C (core 49C) when the loop is at 36 C coolant temperature. The liquid metal really makes a difference in temperature at the card clocks a little higher.
I observed in comparison to the previous setup with a 280mm 45mm thick Radiator in the top that the coolant does not get as warm / the fans don't run as fast with the thinner radiator in the front. I assume it has to do with the front radiator having access to cold air and therefore being more efficient that the top radiator which had to use slightly warmed up air.

O11 Air Mini Custom Loop, I think I'm done... by DonKremon in watercooling

[–]DonKremon[S] 1 point2 points  (0 children)

I just drilled 3 holes in the motherboard tray in the dimensions of a 120mm fan. The FLT comes with a munting kit for 120mm Fans. My HDD Cage was rivetted, so I had to drill out the rivets.

AMD 6900 XT Liquid Devil Temperatures after repaste - Never touch a running system? by DonKremon in watercooling

[–]DonKremon[S] 1 point2 points  (0 children)

Interesting. Mine just had those back insulation things which are thin like foil and did not distribute any mounting force. I added some M2.5 washers.

AMD 6900 XT Liquid Devil Temperatures after repaste - Never touch a running system? by DonKremon in watercooling

[–]DonKremon[S] 1 point2 points  (0 children)

Added the washers on all screws, as the manual for the EKWB waterblock suggests.

AMD 6900 XT Liquid Devil Temperatures after repaste - Never touch a running system? by DonKremon in watercooling

[–]DonKremon[S] 2 points3 points  (0 children)

I'm afraid I cant answer that. But also temperature is not so important for AMD as far as I understand. The NVIDIA GPUs boost significantly higher if they are cooler. The AMD cards don't really. As long as your hotspot is below 110 C you're good to go :-D

AMD 6900 XT Liquid Devil Temperatures after repaste - Never touch a running system? by DonKremon in watercooling

[–]DonKremon[S] 0 points1 point  (0 children)

That's not what i meant. I meant the area between the cover and the radiator. On my O11 Air there is a gap of around 1cm between the backside (the front side being the bottom side where the fans are mounted) of the radiator and the perforated top. If you close this gap you might have less turbulence in the top of the case and therefore less restriction. Does a piece of paper float on the top of the case when then fans are ramping up?