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gtr2244

Watercooling Help Needed for i7 8700k

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Posted · Original PosterOP

 PC: 

i7 8700k oc to 4.5ghz right now probably 5 ghz later, cooled with a Noctua NH- D15S dual 140mm fans

GTX 2080 Ti reference,  stock settings cooled with a Corsair rgb waterblock

Asus z390 E motherboard

Corsair 750w psu

Fractal Design S case

 

 I have a EKWB pump/res combo with a slim 360 radiator for my gpu. My question is would a EKWB PE 120mm radiator be enough for the cpu? Or should I get a 240 radiator? I did try running the cpu and gpu off the slim 360, the cpu temps were in the 70'sc under load. I'd like to see the temps lower. Thanks.

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for the CPU I'd reccommend at least a 240mm rad. you might be able to do it witha single 120mm 60mm rad. Don't get EKWB's rads, the thin ones are pretty bad. Search up hardwarelabs, their rads are great, a good bit better than the EKWB ones. Corsair's rads are OEM versions of hardwarelabs rads, except they are are a little less wide.


Hello! Feel free to PM me anything. Here's my stuff below!

PC (Main)

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CPU: i5-8400 CPU Cooler: Cryorig M9 Plus   Motherboard: Gigabyte B360M DS3H | RAM: Crucial Ballistix Sport 2x8 DDR4-2400 SSD: Inland 480GB SSD | Video Card: RX 570 4GB Strix OC | Case: Fractal Design Meshify C White TGPSU: EVGA SuperNOVA G3 750 Monitor: Sceptre 24" 1080p 75hz Webcam: Logitech C920 Keyboard: Modded FC660M | Mouse: G305

 

NAS:

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Synology DS418J w/ 4x WD Red Pro 6TB RAID 10

Seagate 5TB external SMR 2.5" HDD

MS Office 365 - 1TB Onedrive

 

Phone/Tablet:

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iPhone XR 64GB iPad Mini 4 128GB

 

Laptops:

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Dell XPS 15 9570 i7-8750H + 1050 Ti MacBook Air 13" mid-2012

 

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 Audio-Technica AD700X + Modmic 4 KZ ZS10 Pro | Audio-Technica LP120USB Audioengine A2+

 

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If you mean enough just for the cpu sure. Unless you mean to add to the loop. I’d do a 240 or 360. What ever you can fit. 
 

I use a pair of 280’s for mine. The thin ones unfortunately. But still keep both parts in the high 40’s for temp with fans at 40%. But the cpu is delided. So it would be in the high 50’ prior. 


Main RIg Corsair Air 540, I7 8700k, ASUS ROG Strix Z370-H, G.Skill TridentZ 16GB, EVGA 1080TI SC Black, EVGA 850 GQ, Acer xG270HU 2560x1440@144hz

 

Spare RIg Corsair Air 540, I7 4770K, Asus Maximus VI Extreme, G.Skill Ares 32Gb, EVGA 1080sc & 1060 SSC, Corsair CX850M, Acer KG251Q 1920x1080@240hz 

 

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Posted · Original PosterOP

 What type of 240 radiators? I use EKWB, the sales rep recommends a thick radiator. The 360mm slim cools my 2080Ti to 45c during games. So I was thinking a thick 3mm 120mm for my delided 8700k.

 

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26 minutes ago, gtr2244 said:

 What type of 240 radiators? I use EKWB, the sales rep recommends a thick radiator. The 360mm slim cools my 2080Ti to 45c during games. So I was thinking a thick 3mm 120mm for my delided 8700k.

 

Depends, where is it going, is there going to be an interference issue with the board? I get the matching rad for the 360 and what ever thickness you can fit. Comes down to the fan used and fpi. 


Main RIg Corsair Air 540, I7 8700k, ASUS ROG Strix Z370-H, G.Skill TridentZ 16GB, EVGA 1080TI SC Black, EVGA 850 GQ, Acer xG270HU 2560x1440@144hz

 

Spare RIg Corsair Air 540, I7 4770K, Asus Maximus VI Extreme, G.Skill Ares 32Gb, EVGA 1080sc & 1060 SSC, Corsair CX850M, Acer KG251Q 1920x1080@240hz 

 

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get the biggest you can fit in your case,

I'm running a delided 8700k (stock MCE enabled) on z390i with a EK monoblock and a gtx1080ti (EK-FC) all of it with a d5 and 2 240GTS (slim) HWLabs, It gets around 50+C on the GPU and CPU on a long session of Doom Eternal. But the fans are running too fast for my liking. I wish i could use bigger rads but they just do not fit in the case (mini itx)


CPU: i7 8700K OC 5.0 gHz, Motherboard: Asus Maximus VIII Hero (Z170), RAM: 32gb Corsair Vengeance RGB 3200 mHz, GPU: Asus Strix OC gtx 1080ti, Storage: Samsung 950pro 500gb, samsung 860evo 500gb, 2x2Tb + 6Tb HDD,Case: Lian Li PC O11 dynamic, Cooling: Very custom loop.

CPU: i7 8700K, Motherboard Asus z390i, RAM:32gb g.skill RGB 3200, GPU: EVGA Gtx 1080ti SC Black, Storage: samsung 960evo 500gb, samsung 860evo 1tb (M.2) Case: lian li q37. Cooling: on the way to get watercooled (EKWB, HWlabs, Noctua, Barrow)

CPU: i7 9400F, Motherboard: Z170i pro gaming, RAM: 16gb Corsair Vengeance RGB 3200 mHz, GPU: Sapphire Vega56 pulse with Bykski waterblock, Storage: wd blue 500gb (windows) Samsung 860evo 500Gb (MacOS), PSU Corsair sf600 Case: Motif Monument aluminium replica, Cooling: Custom water cooling loop

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