Posted October 19, 2019 So I finished my first custom loop a week back. Looks awesome and for the GPU temps it also feels awesome. The CPU temps on the other side seem a bit too high to me, but before I go through the hassle of checking my CPU-delid and reapplying the CPU-block I wanted to ask, whether someone with a little more experience can confirm, that those temps are to high or maybe point me to another thing that might be wrong (maybe I'm just wrong). My setup: Fractal Define R6 EK Full Cover Block on my ASUS ROG Strix Z370 and on my delidded 8700k running at 5GHz with 1.35V EK Full Cover on my EVGA 2080Ti One slim and one normal 360 rad with 3 Noctua Chromax fans each EK-XRES 140 Rev Pump-Res combo Soft tubing... Loop order: 1. Pump 2. GPU 3. CPU/Full Cover 4. Top Rad pushing air out 5. Front Rad pulling air in Water temp is measured with a simple cleaned thermometer placed inside the reservoir as I missed to place a thermometer inline as i built that loop. Right in- and outlet directions are all cared for... At a room temp of ~22°C benchmarking (Valley Benchmark) the GPU heats up the water to ~42°C which makes the 2080Ti settle in at 55°C and the CPU at 58..68°C which seems fine to me (fans at 500rpm, pump 3000rpm). The max. heat torture test in Prime95 heats up the water to "only" 31°C after 15min while the CPU is at ~95°C with the fans and pump on fullspeed (1500rpm and 4800rpm). This worries me a bit as the low temperature of the water but the high CPU temperature indicates to me, that the contact of the CPU-block might be bad?! It's my first loop so I'm not sure what to expect and whether CPU-blocks are overall "less efficient" than GPU-blocks. I just wonder, why the loop can dissipate the +300W of the GPU and keep it at 55°C while the CPU's ~200W can't be dissipated that effectively as it reaches above 90°C. Sure, the CPU surface is quiet a bit smaller... but that much?! Idle the temps are around 33°C at the GPU, ~45° CPU (but quiet jumpy between 40..50°C) with the water at 30°C. Thanks for any help Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 They high, but if you run Prime95, pepare for toast. Combined with an overclock, I'm honestly not that surprised at high temperatures when running that. I would see what the temperatures are in workloads that are more representative of what you typically do. Crystal: CPU: i7 7700K | Motherboard: Asus ROG Strix Z270F | RAM: GSkill 16 GB@3200MHz | GPU: Nvidia GTX 1080 Ti FE | Case: Corsair Crystal 570X (black) | PSU: EVGA Supernova G2 1000W | Monitor: Asus VG248QE 24" Laptop: Dell XPS 13 9370 | CPU: i5 10510U | RAM: 16 GB Server: CPU: i5 4690k | RAM: 16 GB | Case: Corsair Graphite 760T White | Storage: 19 TB Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 41 minutes ago, Thomseeen said: So I finished my first custom loop a week back. Looks awesome and for the GPU temps it also feels awesome. The CPU temps on the other side seem a bit too high to me, but before I go through the hassle of checking my CPU-delid and reapplying the CPU-block I wanted to ask, whether someone with a little more experience can confirm, that those temps are to high or maybe point me to another thing that might be wrong (maybe I'm just wrong). My setup: Fractal Define R6 EK Full Cover Block on my ASUS ROG Strix Z370 and on my delidded 8700k running at 5GHz with 1.35V EK Full Cover on my EVGA 2080Ti One slim and one normal 360 rad with 3 Noctua Chromax fans each EK-XRES 140 Rev Pump-Res combo Soft tubing... Loop order: 1. Pump 2. GPU 3. CPU/Full Cover 4. Top Rad pushing air out 5. Front Rad pulling air in Water temp is measured with a simple cleaned thermometer placed inside the reservoir as I missed to place a thermometer inline as i built that loop. Right in- and outlet directions are all cared for... At a room temp of ~22°C benchmarking (Valley Benchmark) the GPU heats up the water to ~42°C which makes the 2080Ti settle in at 55°C and the CPU at 58..68°C which seems fine to me (fans at 500rpm, pump 3000rpm). The max. heat torture test in Prime95 heats up the water to "only" 31°C after 15min while the CPU is at ~95°C with the fans and pump on fullspeed (1500rpm and 4800rpm). This worries me a bit as the low temperature of the water but the high CPU temperature indicates to me, that the contact of the CPU-block might be bad?! It's my first loop so I'm not sure what to expect and whether CPU-blocks are overall "less efficient" than GPU-blocks. I just wonder, why the loop can dissipate the +300W of the GPU and keep it at 55°C while the CPU's ~200W can't be dissipated that effectively as it reaches above 90°C. Sure, the CPU surface is quiet a bit smaller... but that much?! Idle the temps are around 33°C at the GPU, ~45° CPU (but quiet jumpy between 40..50°C) with the water at 30°C. Thanks for any help I would increase the fan speed. Even my PC gets toasty with 500RPM and I have 4 thickest radiators and 2 pumps. I have 3000 RPM fans, but don't run them that high. I have options though. I would run your Chromax fans as fast as possible without making too much noise. Main PC: CPU: Intel Core i9 13900KS SP 116 (124P-102E) (6.1Ghz P-Cores 4.8Ghz E-cores) MC SP 88 CPU Voltage: LLC8 1.525V (real voltage 1.425V + - Temps 85-90 P-Cores, 70-73 E-cores) Cooled by: Supercool Direct Die 14th gen full nickel Motherboard: Z790 ASUS Maximus Apex Encore RAM: GSkill TridentZ 2x24GB DDR5 8600Mhz CL38 (OC from 8000Mhz CL40) GPU: RTX MSI 4090 Suprim X with EKWB waterblock Case: My own case fabricated out of aluminium and wood Storage: 4x 2TB Sarbent Rocket Plus Gen 4.0 NVMe, 1x External 2TB Seagate Barracuda (Backup) WiFi: BE202 WiFi 7 Tri-Band card module PSU: Corsair AX1600i with custom black and red cables with 2x Corsair 5V+ Load Balancer Display: Samsung Oddysey G9 240Hz Ver. 5120x1440 with G-Sync and Freesync Premium Pro 1008 Firmware Ver, and 1x Electriq USB C 1080p 15'8 inch IPS portable display for temperature and stats, MSI 23'8 144Hz G-Sync Fan Controllers: 6x AquaComputer Octo with 5 temperature sensors Cooling: Three Custom Loops: 1st Loop: 5x 480mm XE CoolStream radiators with 1x Revo D5 RGB pump and 1x Rajintek Antila D5 Evo RGB pump for GPU only cooling with 2x Koolance QDC3, red coolant 2nd Loop: 5x 480mm XE CoolStream radiators with 1x Revo D5 RGB pump and 1x Rajintek Antila D5 Evo RGB pump for CPU only cooling with 2x Koolance QDC3, purple coolant 3rd Loop: 1x 240mm PE CoolStream radiator with 1x EKWB Revo D5 pump (RAM ONLY) Total: 5x pumps and 13x radiators 50x 3000RPM Noctua Industrial fans Keyboard: Razer BlackWidow V3 RGB - Green switches Sound: Logitech Z680 5.1 THX Certified 505W Speakers Mouse: Razer Basilisk Ultimate Wireless with charging dock Piano: Yamaha P155 Phone: Oppo Find X5 Pro Camera: Logitech Brio Pro 4K VR: Oculus Rift S External SSD: 256GB Overclocking OS Laptop: MSI Titan GT77HX V13, RTX 4090 175W, i9 13980HX OC: P-Cores 5.8Ghz 3 cores and 5.2Ghz 5 cores and E-Cores 4.3Ghz, 192GB of RAM @5600Mhz @3600 (chipset limit), 12TB (3x4TB) of NVMe, 17'3 inch 4K 144Hz MiniLED screen, 4x 17'3 ASUS portable USB-C Monitors 240Hz, Creative Sound Blaster G6 Sound Card, Portable 16TB NVMe in TB4 enclosures (8x2TB), Razer Basilisk Ultimate Wireless with charging dock gaming mouse, Keychron K3 gaming keyboard with blue switches low profile, Logitech Brio 4K Webcam. Hand held: ROG Ally with XG Mobile RTX 3080 with Keychron K3 low profile keyboard (Blue Switches) and Razer Hyperspeed V3 mouse and 4TB NVMe upgrade (WDBlack SN850X), with 100W 20000Mah power bank and portable monitor ROG XG17AHP 17'3 inch 240Hz with built in battery, and 518Wh Power station for Camping. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 Cpu voltagee is abit high for 5 ghz. But yes cpu blocks are less "efficient" than gpu blocks. For the voltage and load given not delided you cpu temp is "normal: Recent builds: Meshify C (Zero Tolerance!) & View 37 (Breathable Quad 2080Ti + 2990WX) Best documented PC coolants Older Builds Spoiler Full-custom loop builds: Meshify C (Full custom loop SLI), Ncase M1(8700K + 1080Ti Full custom loop) Obsidian 900D (1950X + Quad 1080Ti) & Fractal Define C (1080 in SLI) Air-cooled builds Air 740D (1920X + Quad 980Ti) & Fractal Define C (Version Air!) Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 Author 48 minutes ago, For Science! said: Cpu voltagee is abit high for 5 ghz. But yes cpu blocks are less "efficient" than gpu blocks. For the voltage and load given not delided you cpu temp is "normal: Well, I can't get it to be stable (mainly tested with Prime in self-check) at a lower voltage. 1.35 still throws errors but well, I might should just go after overall system stability and not prime. And well, the CPU IS delided so I was unsure... I mean, just gaming the GPU sets in at around 60°C after a while while the CPU jumps around 75..85°C. Isn't that too hot? Even with 1.35V and 5GHz... and an idle temp of around 45°C also feels too hot... That's what I'm looking at while gaming. CPU and CPU OPT are my rad-fans and AIO-Pump is the D5 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 Seems normal to me. Main RIg Corsair Air 540, I7 9900k, ASUS ROG Maximus XI Hero, G.Skill Ripjaws 3600 32GB, 3090FE, EVGA 1000G5, Acer Nitro XZ3 2560 x 1440@240hz Spare RIg Lian Li O11 AIR MINI, I7 4790K, Asus Maximus VI Extreme, G.Skill Ares 2400 32Gb, EVGA 1080ti, 1080sc 1070sc & 1060 SSC, EVGA 850GA, Acer KG251Q 1920x1080@240hz Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 It might be normal - but it's not OK Delid that sucka - you will see a 15C drop minimum. 1.35 volts is a bit high tbh. What LLC are you running? 9900K / Asus Maximus Formula XI / 32Gb G.Skill RGB 4266mHz / 2TB Samsung 970 Evo Plus & 1TB Samsung 970 Evo / EVGA 3090 FTW3. 2 loops : XSPC EX240 + 2x RX360 (CPU + VRMs) / EK Supremacy Evo & RX480 + RX360 (GPU) / Optimus W/B. 2 x D5 pumps / EK Res 8x NF-A2x25s, 14 NF-F12s and a Corsair IQ 140 case fan / CM HAF Stacker 945 / Corsair AX 860i LG 38GL950G & Asus ROG Swift PG278Q / Duckyshine 6 YOTR / Logitech G502 / Thrustmaster Warthog & TPR / Blue Yeti / Sennheiser HD599SE / Astro A40s Valve Index, Knuckles & 2x Lighthouse V2 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 19, 2019 The fan and rad choices, along with the design overall are the major factors. What cpu block abs are the correct ports being used for flow? Main RIg Corsair Air 540, I7 9900k, ASUS ROG Maximus XI Hero, G.Skill Ripjaws 3600 32GB, 3090FE, EVGA 1000G5, Acer Nitro XZ3 2560 x 1440@240hz Spare RIg Lian Li O11 AIR MINI, I7 4790K, Asus Maximus VI Extreme, G.Skill Ares 2400 32Gb, EVGA 1080ti, 1080sc 1070sc & 1060 SSC, EVGA 850GA, Acer KG251Q 1920x1080@240hz Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 20, 2019 Author 10 hours ago, WihGlah said: It might be normal - but it's not OK Delid that sucka - you will see a 15C drop minimum. 1.35 volts is a bit high tbh. What LLC are you running? As I have said, the CPU is delidded... I already experienced that drop while it was still air-cooled. I have changed the voltages since. I'm down to 1.325 for 5.1GHz now. LLC is 5 or 6 if I remember correctly. The question is, should it be lower? cause that could mean, that I maybe should refresh the liquid metal (it's around 10 months old now)... 9 hours ago, Mick Naughty said: The fan and rad choices, along with the design overall are the major factors. What cpu block abs are the correct ports being used for flow? Yea, I used the right inlet and outlet port. EK monoblock Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 20, 2019 Then there’s no issue. Main RIg Corsair Air 540, I7 9900k, ASUS ROG Maximus XI Hero, G.Skill Ripjaws 3600 32GB, 3090FE, EVGA 1000G5, Acer Nitro XZ3 2560 x 1440@240hz Spare RIg Lian Li O11 AIR MINI, I7 4790K, Asus Maximus VI Extreme, G.Skill Ares 2400 32Gb, EVGA 1080ti, 1080sc 1070sc & 1060 SSC, EVGA 850GA, Acer KG251Q 1920x1080@240hz Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted October 21, 2019 Looking at the fact your room temp is 22c and water temp climbs to 42c (20c deltaT) I think your fan speed is too low or something else is going on. On a custom loop I normally aim for a 5-8c DeltaT but most people are in the 10-12c range. Remeber if your water temp is 8c higher then the components are all 8c higher. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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