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Tam3n

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  1. Like
    Tam3n got a reaction from NinJake in Rate the Photo Above you   
    7/10 Cool lightning shot.
     
    Here's my first full night sky panorama stitching test:

  2. Informative
    Tam3n got a reaction from Imannudein in Does the flow rate matter - Tested single D5 pump at 1, 3, 5 and triple D5 pumps at max :)   
    Hello, it's experiment time again
     
    How much does the flow rate improve when adding more pumps in series, and how much does it affect the thermals? Those were some of the questions I had in my mind.
    So, I decided to have some fun, and added two more D5 pumps in my loop to find out. I was curious how it would affect the cooling performance, so I did a little comparison test.
     
    Here's my water cooling loop, which should have some restriction in it:
    - Pump(s): 3x Laing D5 Varios (1x EK-D5 Vario with X- RES 100 combo + 2 x EK-D5 Vario with EK-XTOP Revo Dual D5 Serial)
    - Radiators: UT60 360 mm + UT60 480 mm  + Xtreme Nova 1080 mm
    - Blocks: CPU: 1x Alphacool NexXxoS XP³ Light  Acetal,   GPUs: 2x EK-FC R9-290X Acetal+Nickel (Rev.2.0) full cover
    - Like 5 m of 10/16 mm tubing
     
    I was interested in the results at very high OC with high power draw and heat, since that's where the results might matter for me - though I wasn't expecting huge difference in any case.
     
    I did the tests as follows.
    First, before installing the additional two pumps in the loop, I ran the tests with a single D5 at speed settings: 1, 3 and 5 (max). I should mention, that the D5 kind of stalls (at least mine does) to a very low speed and vibrates more when you set it to as low as it goes (it almost goes below 1) so I ran it at something like "1.2", where it runs nicely and quiet, as the lowest setting.
    Next, I added the two pumps with the EK dual top in series after the original pump with res combo and ran the tests with all three pumps at 5 (max).
     
    I tested my CPU and one of my GPUs (other card was not powered on) separately.
    For the CPU (i7 3970X Sandy Bridge-E six-core) I dialed in settings 5.0 GHz @ ~1.5 V and ran Prime95 with AVX small FFTs for the maximum heat output.
    For the GPU (AMD R9 290) I dialed in settings 1300 core, 1600 memory @ ~1.5 V (1250 mV + 250 mV with reduced Vdroop bios) and ran Furmark @ 1080p for the maximum heat output.
    I used the digital PSU Corsair AX860i to log the temps and other data. Max system power draw (coming in the PSU) for the CPU only test was ~650 W and GPU only test ~1000 W.
    I ran each test for 3 min and logged the data with intervals of 30 seconds. Also, at each corresponding 30 seconds I manually wrote down the water temperature to excel file. This way I got six data points for each individual test with CPU and GPU temperature, power and water temps data. For the CPU temperature value, I used the average of the six core temps. Finally, I calculated the difference to water temperature for each of the six data points, and took the average of that for the final result.
     
    Here's what I got:

     
    Now something to note, is that the ambient temps (around 20-22 C) were not controlled or measured which affect the Tmax values, that represent the max temp that CPU or GPU reached during each test. The test were done in order from red to blue and I think the room was a bit colder during the triple pump test. Also the water temp probe is a basic cheap inline one with resolution of 0.1 C, but the actual accuracy and response time is questionable.
     
    Anyway, the theory behind flow rate improving temps is the same as with more air flow improving temps. Basically, you make the boundary layer on the cold plate surface thinner and move more cool liquid in proximity of the cold plate surface (and heated liquid away), which improves the convection of the heat. Besides the cold plate, this should also result in the radiators working more efficiently for the same reason, resulting in additional reduction in temps (but you don't see that in component temp delta to water temp). However, consider you have infinite radiators and flow rate, which would keep the water temp and the cold plate inner surface at the ambient temp. You would still have certain temperature difference between the component and the water, which depends on the component heat output and thermal resistance from the component to the inner surface of the cold plate.
     
    Depending how close you already are to this situation, where you can keep the cold plate and radiators inner surface close to water temp, determines how much more you can improve the temps just by rising the flow rate. As you can see, temps didn't improve too much for the CPU going from 1 pump to 3 pumps, but the GPU still saw some improvement. Also the CPU and GPU improved approximately in the ratio of their heat output. Obviously, the result will be greater the bigger heat concentration you are dealing with.
     
    I've been thinking of doing some oc runs with cold water... So one thing to consider, is that the water viscosity is 2 - 3 times greater at below 5 C compared to the normal 30 - 40 C one would expect in a loop. Higher viscosity directly decreases the flow rate, which additional pumps will help to overcome.
     
    Bonus - Had fun bleeding the system with triple D5, I think this is the first time I didn't need to tilt my radiators/case at all to get all of the air easily out.
     

  3. Like
    Tam3n got a reaction from leadeater in US Military says Drone Zerg Rushes may be Overpowered   
    When speaking about a swarm of drones, it comes to mind they would fly in some kind of tight formation. But no... They can be spread out over a very wide range of area, flying low. With a great number of them, it becomes easy to quickly gather a lot of data about enemy positions and advantageous paths forward etc. Then they can team work, sharing info, like playing a tactics game with powerful AI. Can the humans keep up, or will it be like what we have seen with the deeplearning demos against top human players.
  4. Agree
    Tam3n got a reaction from Mitko_DSV in how old is your pc?   
    8 years. Sandy Bridge is still strong.
  5. Like
    Tam3n got a reaction from Ashley MLP Fangirl in how old is your pc?   
    8 years. Sandy Bridge is still strong.
  6. Funny
    Tam3n got a reaction from Taf the Ghost in Intel Announces Xeon W-3175X: 28-Core Processor for Extreme Workstations   
    Need to buy just for those Timespy scores... Not much other use.
  7. Like
    Tam3n reacted to Jumper118 in Post your Cinebench R20+15+R11.5+2003 Scores **Don't Read The OP PLZ**   
    to celebrate this thread being 5 years old i have a special score for it!





  8. Funny
    Tam3n got a reaction from Ross Siggers in Powering loop without PSU   
    ...Or use a PSU after all. Having a cheap spare PSU around to use for filling/testing etc without needing to power on the main system PSU is handy to have.
  9. Like
    Tam3n reacted to WolfieX in Unigine Valley Benchmark Scores Thread + SUPERPOSITION ***Over 1000 Submissions!***   
    This Benchmark was run on 720p Default dettings
    Intel Core i5 2410M
    NVIDIA GeForce 410M
    AVG. FPS : 7.80 FPS
    Score : 1042
     



  10. Informative
    Tam3n got a reaction from Coaxialgamer in Does the metal used in fittings matter/mixing metals?   
    It's best to go either all aluminum, or with no aluminium at all. Copper, nickel, brass (and even stainless) can exist in the same loop without much of an issue. Of course, if you really don't care about the corrosion, go for it.
  11. Like
    Tam3n reacted to ninbura in Radiator Sprung A Leak (Full Room Loop)   
    Brief history  - about 5 months ago I decided to replicate Linus's whole room watercooling experiment while trying to avoid the issues he ran into (corrosion, using copper in target room, correct head pressure). The Idea always fascinated me for multiple reasons, it gets unreasonably hot in my room / I do a lot of audio recording so by removing radiators and thus fans I thought I could get things a lot quieter. It has largely been successful, not nearly as hot in my room and close to dead silent after eliminating a few other noise sources. It isn't all rainbows though, I learned a lot while putting everything together, and could have done several things better. Really I only needed 2 radiators and 2 pumps, but at the time I went with 4 radiators and 3 pumps, there is some sag in my tubing, and a few other "mistakes". But at the end of the day flow rate is great, system temps are great, everything more or less went according to plan. The reason I say all of this is you may be inclined to point out "problems" you have with the system, but guys everything has been working almost flawlessly, so forgive me if I dismiss certain allegations as I have already received many that I know at this point to be untrue. That being said, spitball all you want, criticism I haven't heard yet helps me improve the system and myself. Now that you are more or less filled in on the situation leading up to this point lets get to the issue.

    The PSU went out on my secondary PC last week so I shut everything down, turned off the loop, removed the system from the loop using the quick disconnect fittings, hooked only my main PC back up to the loop, and then turned the loop and my main PC back on again. I decided before I start replacing the old PSU I'd run to the grocery store to grab a few things real quick, but when I returned I head very loud water noises coming from my main computer. I quickly noticed that the reservoir in that system (which I use to bleed that loop when disconnected from the main loop) was almost empty and my water blocks where littered with air bubbles. I shut the PC down as quickly as possible and started searching for any leaks - nothing leaking in the computer, no connections in my room outside of the PC leaking, run downstairs, no connections leaking in the closet I run some tubing / piping through. Finally I get to the room where my pumps and radiators are and I shut down the system. As I start to examine things I notice water dripping from the second radiator in, I start searching for any connections and tubing above the radiator to see if I can spot something leaking, nothing. I check every connection and all the tubing in the room, nothing. Turns out it was just straight up the radiator leaking which seems pretty abnormal to me.

    There is clearly a reason this would occur after removing one of my systems from the loop, without the water running through the additional blocks and right angle fittings there should be more pressure on the components still in the loop (I think?). But correct me if I'm wrong, wouldn't the soft tubing before the radiator give or break before the copper tubing in the radiator? Surely it is rated for a higher PSI than the soft tubing... And just to mention real quick, I ran the loop for days without any systems hooked up to it back when I was setting this up. And this was with the pumps at full power, later down the line I eventually got some speed controllers because the flow rate was unreal. So really my best guess is that I just have a defective radiator and need to get it replaced, but could I be missing something?
     
    Anyways I was just hoping someone could confirm or deny my assumptions. Funny enough, I've been needing to clean the loop anyways, it's been months and I have some pipe sealant / calk trapped in some of my water blocks (maybe there was some in the radiator and that somehow caused this?). Plus I shouldn't see any degradation in performance bypassing one of the radiators, and I can remove one of the pumps from the loop while I'm at it.  Although I wish my reason for maintenance wasn't a leak.

    Some photos of the loop when running to give you an idea:


    Leak:

  12. Like
    Tam3n reacted to Not_Sean in Car Enthusiast Club [Now Motorcycle friendly!] - First thread to 150k! ¯\_(ツ)_/¯   
    I DID A THING!!

    *Sorry I've got them rotated but seems the site keeps flipping them  Most annoying
     
    Finally got round to fitting the induction system I built, Had to extend the two Vacum lines but so happy, and my god does all that extra turbo noises sound so so good! Wrapped it in Mishimoto Gold, so not that Fake ebay Crap, went for a long drive and the intake temps barely moved, hella impressed with it since those 5 Cylinders get so damn hot under the hood and haven't fitted the WRC & RS Hood vents yet. 

    Next up is building and fitting a Catch can. 



  13. Like
    Tam3n reacted to XPLSV in Watercooling a Titan Xp Star Wars Collector's Edition?   
    I disassembled my card last night and put on the EKWB waterblock and backplate. I have the Galactic Empire edition of the Star Wars Collector's Titan Xp card. As EbinNator2044 experienced, it was pretty straightforward according to the included EKWB instructions. I will note that when removing the attached Star Wars backplate, two of the small screws are covered by EKWB stickers attached to the backplate: I simply embedded my small phillips screwdriver into the sticker and contacted the screw head. The two LED header connections are also the same; although when removing the shroud, the connection to the one LED header (which I will call LED Header 1) was well connected and I had grabbed it with a needle nose pliers to ensure I did not apply excess shearing torque to it while disconnecting the card from the shroud. There is also the typical fan connector wire, which is easier to reach in and disconnect. The test fit showed the waterblock to be sitting flush, just as EbinNator2044 stated, but I decided to shave a bit of the height off the top of the one LED header (LED Header 1), as it was exposed and easy to do, just to ensure clearance. I simply used a sharp hobby knife blade. I put an EKWB gold backplate on it to complete the card. 
     
    EK-FC TitanX Pascal-Copper Water Block with Acetal Top for Nvidia TitanX Pascal
    EK-FC TITANX-PAS-GTX-AC-D
    1
    EK-FC Titan X Pascal Backplate - Gold for EK-FC TitanX Pascal GTX Series Water Blocks
    EK-FCTITANX-PAS-GD-BP-D
    1
     





  14. Informative
    Tam3n got a reaction from sykotikman in EK Ekoolant EVO (discontinued ) what to use now ?   
    Distilled/deionized water with a couple of drops copper sulfate.
    Never need to change the water if your loop is clean, only copper/nickel and the tubing doesn't bleach plasticizer.
  15. Like
    Tam3n reacted to Froody129 in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    I'm actually quite impressed all of that is running on an 860w PSU. If everything is overclocked with an extra 200w in fans I don't know if that's enough  
  16. Like
    Tam3n got a reaction from Froody129 in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    Yayy, test time. How much does the airflow through a radiator really matter??
     
    I got 4x PFC1212DE-PWM high speed "server" fans for fun, decided to try them on my 480 mm radiator and do a comparison against regular Noctuas on a 360 mm.
     
    Test setup:
    Procedure
    - Main heat load produced with CPU running Prime95 small FFT AVX
    - Tested both idle and load, with only 3x Noctuas and with only 4x Deltas - other radiator fans off, pumps max.
    - Monitored: ambient temp (in the video both in and out are in the room), water temp (inline sensor), CPU cores temp, PSU power output (Delta fans ran from a different PSU and were not included in the measurement).
     
    System
    CPU: i7 3970X, load @ 4.7 GHz, 1.40 V
    GPU: HD 7850 idling
    PSU: Corsair AX860i (core temps & power monitoring 1/sec)
     
    Water loop
    Rad1: Alphacool UT60 360 mm (with 3x Noctua)
    Rad2: Alphacool UT60 480 mm (with 4x Delta)
    Rad3: Phobya Xtreme Nova 1080 mm (with 9x Corsair ML, off all the time)
    Pumps: 3x Laing D5 vario in series
    1x Alphacool CPU block
    1x Alphacool universal block
     
    Fans
    - 3x Noctuas (2x NF-F12 PWM + 1x  NF-P12 PWM)
    - 4x Delta PFC1212DE-PWM

     
    Note: Deltas were mounted with shrouds made diy-style from some 120 mm fan rims in hopes of reducing the large dead spot in the center.
     
    All runs (1-4. 1st day, 5-7. 2nd day)
    1. Idle - Noctuas idle, Deltas off, pumps min
    2. Idle - Noctuas idle, Deltas off, pumps max
    3. Idle - Noctuas max, Deltas off, pumps max
    4. Idle - Noctuas off, Deltas max, pumps max
    5. Idle - Noctuas max, Deltas off, pumps max
    6. Load - Noctuas max, Deltas off, pumps max
    7. Load - Noctuas off, Deltas max, pumps max
     
    Note: During run 6. water temp rising from idle, during run 7. water temp cooling from run 6 end. Ambient slowly rising as the room warms up (no A/C).
     
    Results

     
    Note:  Ambient and water temp taken at the end of the runs. CPU cores temp is all cores average taken over a small time period at the end of run. Power is the whole average output during the run. Idle includes the open programs and logging. Accuracy is what it is. At small differences accuracy suffers, but gives the overall idea. Rad size compensated values calculated by increasing the ambient-water ∆ proportionally to rad size difference (marked with red).
     
    Video runs 5-7
     
    Some observations
    - At load Deltas lowered water ∆ from 11.5C to 4.3C when comparing rad size compensated values (167% more powerful cooling)
    - Changing pumps from setting 1 (min) to 5 (max) increased power draw by ~40 W
    - Idle to full CPU load increased the system power draw by about 320 W.
    - When on, the Delta fans themselves should warm the room air with about 200 W of heat output
     
    Bonus clip for whoever made it down here
     
    Happy water cooling!
     
    I will be running with the Deltas at full blast from now on.
  17. Like
    Tam3n reacted to UFDisciple in New Nvidia PCB With GDDR6 Pictured   
    Source: TechPowerUp Reddit
     
    Update: "dustinbrooks" has apparently disabled his Reddit account & thus the original post is now missing.
     
    A rather peculiar PCB has made it's way onto Reddit from user "dustinbrooks".  He claims his friend works for a company that is currently testing these new PCBs.
     
    The PCB features 12GB of GDDR6 memory, no GPU, an NVLink connector, 3x 8-pin PCI-E connectors for up to 525W, and plenty of connections for testing the actual PCB.

    TechPowerUp tried to measure the missing die from the picture:
    Buildzoid on Reddit stated: 
     
    It appears that we are potentially seeing a prototype PCB for an upcoming GT102 Turing GPU, a new design for the Volta architecture with GDDR6, or a prototype board that's been fazed out & this is just a bamboozle.  The inclusion of the NVLink connectors is an interesting one & could mean that this might be a "consumer" Titan replacement for the Titan Xp, or that SLI is done with completely. 
     
    As Buidzoid said: 
     
  18. Like
    Tam3n reacted to Fantasmorie in Water Temps with this setup ok?   
    Small update:
    I decided to change the front and top panel with a custom cut perforated aluminum mesh.
    Painted in white or entirely black, maybe with some Lian Li logo, have to see.
    That should solve the problem for a good amount hopefully.
     
     
     

  19. Informative
    Tam3n got a reaction from TsunamiOne in Power surge detected, despite "very good" PSU?   
    I used to get this error on my P9X79. I got tired of it and disabled it 5 years ago. Been good since then.
  20. Like
    Tam3n reacted to agent_x007 in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    I'm using push-pull Delta 38mm PWM fans on my main PC

    Fans I use : 
    FFC1212DE-SP09 ("push" fan),
    AFB1212SHE-5J1N ("pull" fan).
    FFC is connected directly to Molex 12V (and gets PWM signal from MB header).
  21. Like
    Tam3n reacted to iamdarkyoshi in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    I should conduct some similar tests with a 40mm dual rotor fan I have that runs at around 30,000RPM. Its an absolutely terrifying monster when running, and the static pressure is just something else...
  22. Like
    Tam3n reacted to JLambeth87 in Aeris Lignea - Custom Steel/Wood/Copper Desk, SLI 1080TI Kingpins and 7980XE   
    I am proud to present "Aeris Lignea"   Aeris Lignea, which means Copper and Wood, is a custom built computer desk with the computer and water cooling system integrated into the desk. The desk was entirely designed and built by me over the course of the last 6 months.   Before starting this project, I had never welded steel or sweated copper pipe. I learned as I went and made many practice pieces before attempting the real thing.   Once I had decided on the materials I wanted to use for the main desk construction, I started to design it out on paper. The biggest challenge I was going to face was that I wanted to make sure all the computer and cooling components stayed inside the 8" wide I beam. I had to custom build all the mounts for every component to achieve this. I needed to use PCI-E Riser cables to extend from the motherboard to the 3 PCI-E cards (2x GPU's and 1 NIC).   Another challenge was that I did not want any SSD's or HDD's visible. This is why I went with just the 2x M.2s. However since I am a video production guy, I needed to have a large amount of storage. To achieve this I actually built a separate 36TB storage server. This is housed in one of the other areas in the office. The desk system and the storage server are connected via a 10gb network. I am getting sustained transfer speeds of around 800MB/s.   Here are the specifications for the desk and computer: Desk Components - The frame is constructed out of 8" wide steel I-Beam. - The desktop is 2" thick African Zebra Wood. The two reservoir and pump towers are also made from Zebra Wood. - All the copper piping is 100% functional. They are carrying the water to and from the computer and cooling components.   Computer Components: -CPU: Intel i9-7980XE Delidded and Overclocked to 4.5Ghz -RAM: 128gb Corsair DDR4 running at 2666mhz -Motherboard: MSI X299 Gaming M7 ACK -GPUs: 2x EVGA 1080Ti Kingpin Hydrocopper Edition OC'd to 2083mhz -Storage: 2x Samsung 960 EVO 1TB nVME M.2 SSDs -PSU: EVGA 1600w P2 with full custom sleeved cable's by me (using Teleios Carbon Sleeving). Network: ASUS 10gb Network adapter -Audio: Schiit Audio Modi2 DAC and Valhalla2 Tube Amplifier with Beyerdynamic DT770 250ohm headphones.   Cooling Components (Dual Loop System): -Pumps: 4x EKWB D5s -Reservoirs: 4x EKWB 250mL X3s -Waterblocks: EKWB Monoblock -Radiators: 2x EKWB 480mm Coolstream XE -Fans: 8x Coolermaster Masterfan Pro AirBalance -Piping: 1/2" Copper -Fittings: EKWB Compression -Flow Meters: LZT M15 Mechanical Fluid Meter   Some fun specs: -Total weight of the desk is roughly 600lbs. -There is 87ft of copper tubing to complete the watercooling runs. -There are 120 copper fittings, all of which needed to be sweated together -All the copper piping has been sprayed with a matte clear coat finish to protect them from turning green over time. -The total volume of coolant for the system is 9.7L. -To fill the loops I need to use a 500gph pond pump to force the water into the system. I can have both loops filled and purged of air within 15 minutes. -Over 90% of the wiring is not visible unless you are on your back looking at the bottom of the desk. -The LED lighting on the desk is actually the Philips HUE light strips so they can be controlled even if the computer is off. The overall size of the desk is 7ft wide, 3.5ft deep, and 33" tall.   I need to give a HUGE shout-out to my wife for letting me do this. I spent more time away from home trying to get this thing done than I probably should have. I also need to give a massive shout out to Dave at Hughes Manufacturing. It was his shop that I did the majority of the fabrication. He taught me everything about welding and sweating copper pipe. I couldn't have pulled this off without him.   If you have any questions about this project, please feel free to ask!   For a full built log, please visit this link: https://www.cmws.global/modderszone/xtc-mortuus/blog-posts   Thank you for looking!    











  23. Funny
    Tam3n reacted to Enderman in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    Fans don't convert all their input energy into heat like processors do, they produce mostly kinetic energy  but cool experiment.
    Haha
    "cool"
    Ha
    Ha
  24. Funny
    Tam3n got a reaction from Dschijn in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    Yayy, test time. How much does the airflow through a radiator really matter??
     
    I got 4x PFC1212DE-PWM high speed "server" fans for fun, decided to try them on my 480 mm radiator and do a comparison against regular Noctuas on a 360 mm.
     
    Test setup:
    Procedure
    - Main heat load produced with CPU running Prime95 small FFT AVX
    - Tested both idle and load, with only 3x Noctuas and with only 4x Deltas - other radiator fans off, pumps max.
    - Monitored: ambient temp (in the video both in and out are in the room), water temp (inline sensor), CPU cores temp, PSU power output (Delta fans ran from a different PSU and were not included in the measurement).
     
    System
    CPU: i7 3970X, load @ 4.7 GHz, 1.40 V
    GPU: HD 7850 idling
    PSU: Corsair AX860i (core temps & power monitoring 1/sec)
     
    Water loop
    Rad1: Alphacool UT60 360 mm (with 3x Noctua)
    Rad2: Alphacool UT60 480 mm (with 4x Delta)
    Rad3: Phobya Xtreme Nova 1080 mm (with 9x Corsair ML, off all the time)
    Pumps: 3x Laing D5 vario in series
    1x Alphacool CPU block
    1x Alphacool universal block
     
    Fans
    - 3x Noctuas (2x NF-F12 PWM + 1x  NF-P12 PWM)
    - 4x Delta PFC1212DE-PWM

     
    Note: Deltas were mounted with shrouds made diy-style from some 120 mm fan rims in hopes of reducing the large dead spot in the center.
     
    All runs (1-4. 1st day, 5-7. 2nd day)
    1. Idle - Noctuas idle, Deltas off, pumps min
    2. Idle - Noctuas idle, Deltas off, pumps max
    3. Idle - Noctuas max, Deltas off, pumps max
    4. Idle - Noctuas off, Deltas max, pumps max
    5. Idle - Noctuas max, Deltas off, pumps max
    6. Load - Noctuas max, Deltas off, pumps max
    7. Load - Noctuas off, Deltas max, pumps max
     
    Note: During run 6. water temp rising from idle, during run 7. water temp cooling from run 6 end. Ambient slowly rising as the room warms up (no A/C).
     
    Results

     
    Note:  Ambient and water temp taken at the end of the runs. CPU cores temp is all cores average taken over a small time period at the end of run. Power is the whole average output during the run. Idle includes the open programs and logging. Accuracy is what it is. At small differences accuracy suffers, but gives the overall idea. Rad size compensated values calculated by increasing the ambient-water ∆ proportionally to rad size difference (marked with red).
     
    Video runs 5-7
     
    Some observations
    - At load Deltas lowered water ∆ from 11.5C to 4.3C when comparing rad size compensated values (167% more powerful cooling)
    - Changing pumps from setting 1 (min) to 5 (max) increased power draw by ~40 W
    - Idle to full CPU load increased the system power draw by about 320 W.
    - When on, the Delta fans themselves should warm the room air with about 200 W of heat output
     
    Bonus clip for whoever made it down here
     
    Happy water cooling!
     
    I will be running with the Deltas at full blast from now on.
  25. Funny
    Tam3n got a reaction from Mattias Edeslatt in "Crazy" 120x38 Delta fans (4x50 W) on 480 mm radiator test :)   
    Yayy, test time. How much does the airflow through a radiator really matter??
     
    I got 4x PFC1212DE-PWM high speed "server" fans for fun, decided to try them on my 480 mm radiator and do a comparison against regular Noctuas on a 360 mm.
     
    Test setup:
    Procedure
    - Main heat load produced with CPU running Prime95 small FFT AVX
    - Tested both idle and load, with only 3x Noctuas and with only 4x Deltas - other radiator fans off, pumps max.
    - Monitored: ambient temp (in the video both in and out are in the room), water temp (inline sensor), CPU cores temp, PSU power output (Delta fans ran from a different PSU and were not included in the measurement).
     
    System
    CPU: i7 3970X, load @ 4.7 GHz, 1.40 V
    GPU: HD 7850 idling
    PSU: Corsair AX860i (core temps & power monitoring 1/sec)
     
    Water loop
    Rad1: Alphacool UT60 360 mm (with 3x Noctua)
    Rad2: Alphacool UT60 480 mm (with 4x Delta)
    Rad3: Phobya Xtreme Nova 1080 mm (with 9x Corsair ML, off all the time)
    Pumps: 3x Laing D5 vario in series
    1x Alphacool CPU block
    1x Alphacool universal block
     
    Fans
    - 3x Noctuas (2x NF-F12 PWM + 1x  NF-P12 PWM)
    - 4x Delta PFC1212DE-PWM

     
    Note: Deltas were mounted with shrouds made diy-style from some 120 mm fan rims in hopes of reducing the large dead spot in the center.
     
    All runs (1-4. 1st day, 5-7. 2nd day)
    1. Idle - Noctuas idle, Deltas off, pumps min
    2. Idle - Noctuas idle, Deltas off, pumps max
    3. Idle - Noctuas max, Deltas off, pumps max
    4. Idle - Noctuas off, Deltas max, pumps max
    5. Idle - Noctuas max, Deltas off, pumps max
    6. Load - Noctuas max, Deltas off, pumps max
    7. Load - Noctuas off, Deltas max, pumps max
     
    Note: During run 6. water temp rising from idle, during run 7. water temp cooling from run 6 end. Ambient slowly rising as the room warms up (no A/C).
     
    Results

     
    Note:  Ambient and water temp taken at the end of the runs. CPU cores temp is all cores average taken over a small time period at the end of run. Power is the whole average output during the run. Idle includes the open programs and logging. Accuracy is what it is. At small differences accuracy suffers, but gives the overall idea. Rad size compensated values calculated by increasing the ambient-water ∆ proportionally to rad size difference (marked with red).
     
    Video runs 5-7
     
    Some observations
    - At load Deltas lowered water ∆ from 11.5C to 4.3C when comparing rad size compensated values (167% more powerful cooling)
    - Changing pumps from setting 1 (min) to 5 (max) increased power draw by ~40 W
    - Idle to full CPU load increased the system power draw by about 320 W.
    - When on, the Delta fans themselves should warm the room air with about 200 W of heat output
     
    Bonus clip for whoever made it down here
     
    Happy water cooling!
     
    I will be running with the Deltas at full blast from now on.
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