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3970x optimal radiator surface area?

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post #11 of 13 (permalink) Old 02-14-2020, 12:56 PM
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I have a 3970x 4.4 ghz all core overclock at 1.3V idling between 35-40. Max temp aida64 and prime 95 in the low 80's. I have a 480 and 240 PE EK rads in push/pull. I'm using an EK Velocity sTR4 cpu block. Hope this helps. I'm jsp9000 on reddit if you want to check out my builds.
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post #12 of 13 (permalink) Old 02-14-2020, 02:00 PM
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Quote: Originally Posted by pal9000 View Post
I have a 3970x 4.4 ghz all core overclock at 1.3V idling between 35-40. Max temp aida64 and prime 95 in the low 80's. I have a 480 and 240 PE EK rads in push/pull. I'm using an EK Velocity sTR4 cpu block. Hope this helps. I'm jsp9000 on reddit if you want to check out my builds.

...just checked your 3970X vid on reddit, very nice ! Also great load temps w/ Aida64
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post #13 of 13 (permalink) Old 02-16-2020, 06:55 AM
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I got ok results with an old RX360 push radiator and XSPC Neo TR block. It could push my 3970x at 4.2ghz all-core load overnight and peak around 80C, maybe 85C on warmer days. Adding a second push radiator didn't do much since now I have one radiator as intake and the second as exhaust making the latter somewhat inefficient. It did reduce my temperatures about ~5C, but I was hoping for better by doubling the surface area. Considering these chips draw as much power as a GPU (~300W) yet run ~30C hotter makes me think the bottleneck is the high power density + IHS + TIM. I also have an Optimus block on preorder so hopefully that'll give me some more thermal headroom.
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