F5F Stay Refreshed Power Users Overclocking rad in s340

rad in s340

rad in s340

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Strafeliner
Member
165
12-23-2025, 11:49 AM
#1
I'm considering an S340 with a custom loop for GPU and CPU. I'd like to use a switchtech loop with the radiator fan speed on the radiator. Would this fit well in the front, or should I adjust it for a 240 or even 280 on top (maybe a thin 25mm radius)? Anyone with experience on the S340 knows if this would work.
S
Strafeliner
12-23-2025, 11:49 AM #1

I'm considering an S340 with a custom loop for GPU and CPU. I'd like to use a switchtech loop with the radiator fan speed on the radiator. Would this fit well in the front, or should I adjust it for a 240 or even 280 on top (maybe a thin 25mm radius)? Anyone with experience on the S340 knows if this would work.

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WhyPhy_
Junior Member
1
12-23-2025, 01:01 PM
#2
I've experimented with a custom loop on an S340, but I didn't go that far. There isn't enough room for the pump unless you have a very compact one. The front can only accommodate a 240mm radius, which is the limit. No extra space for other radials. It's not great. It works best with closed loops such as Corsairs H series or EKWB Predator models. In my opinion, avoid custom loops on the S340 unless you have a pump/res combo and a GPU under 10 inches. And if you only need 240mm of space.
W
WhyPhy_
12-23-2025, 01:01 PM #2

I've experimented with a custom loop on an S340, but I didn't go that far. There isn't enough room for the pump unless you have a very compact one. The front can only accommodate a 240mm radius, which is the limit. No extra space for other radials. It's not great. It works best with closed loops such as Corsairs H series or EKWB Predator models. In my opinion, avoid custom loops on the S340 unless you have a pump/res combo and a GPU under 10 inches. And if you only need 240mm of space.

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NerfMe
Member
93
12-28-2025, 02:32 AM
#3
I've experimented with a custom loop on an S340, but I didn't go that far. There isn't enough room for the pump unless you have a very compact one. The front can only accommodate a 240mm radius, which is the limit. No extra space for other radials. It's not great. It works best with closed loops such as Corsairs H series or EKWB Predator models. In my opinion, avoid custom loops on the S340 unless you have a pump/res combo and a GPU under 10 inches. And if you only need 240mm of space.
N
NerfMe
12-28-2025, 02:32 AM #3

I've experimented with a custom loop on an S340, but I didn't go that far. There isn't enough room for the pump unless you have a very compact one. The front can only accommodate a 240mm radius, which is the limit. No extra space for other radials. It's not great. It works best with closed loops such as Corsairs H series or EKWB Predator models. In my opinion, avoid custom loops on the S340 unless you have a pump/res combo and a GPU under 10 inches. And if you only need 240mm of space.