F5F Stay Refreshed Power Users Overclocking i7 8700k 4,7Ghz MAX Turbo Limit

i7 8700k 4,7Ghz MAX Turbo Limit

i7 8700k 4,7Ghz MAX Turbo Limit

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shocksta360
Member
57
08-11-2017, 01:42 PM
#21
The power consumption remains stable during full load (prime95 small fft). What is the actual power draw while running prime95? If your motherboard is faulty, I’ll return it for replacement. Also, I’m concerned that when the CPU reaches 80-90 degrees, the AIO radiator stays only slightly warm, not hot. The pump is operating at full speed (Bios shows 9000 rpm, but it’s likely around 3000).
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shocksta360
08-11-2017, 01:42 PM #21

The power consumption remains stable during full load (prime95 small fft). What is the actual power draw while running prime95? If your motherboard is faulty, I’ll return it for replacement. Also, I’m concerned that when the CPU reaches 80-90 degrees, the AIO radiator stays only slightly warm, not hot. The pump is operating at full speed (Bios shows 9000 rpm, but it’s likely around 3000).

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SirRoma
Junior Member
11
08-19-2017, 12:48 AM
#22
Nightmare392 :
The power consumption is at full capacity (prime95 small fft). What is the actual power draw while using prime95? If my motherboard is faulty, I’ll return it for replacement. I’m also concerned about the situation where my CPU reaches 80-90 degrees and the AIO radiator only gets slightly warm, not hot. The pump is spinning at 100% RPM (the BIOS shows 9000 RPM, but it’s likely around 3000).

My wattage readings during P95 26.6 Small FFTs won’t compare well to yours because all my C-states are disabled and I’m maintaining coolant temperatures 10°C below ambient. Your temps are consistently above ambient, which means even with a 5GHz CPU overclock, I’m using significantly less power than you are—much less.

Looking at your wattage numbers, they’re showing an unusually high value of 141W on a 95W TDP CPU? Something seems off here, and it probably points to the motherboard.
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SirRoma
08-19-2017, 12:48 AM #22

Nightmare392 :
The power consumption is at full capacity (prime95 small fft). What is the actual power draw while using prime95? If my motherboard is faulty, I’ll return it for replacement. I’m also concerned about the situation where my CPU reaches 80-90 degrees and the AIO radiator only gets slightly warm, not hot. The pump is spinning at 100% RPM (the BIOS shows 9000 RPM, but it’s likely around 3000).

My wattage readings during P95 26.6 Small FFTs won’t compare well to yours because all my C-states are disabled and I’m maintaining coolant temperatures 10°C below ambient. Your temps are consistently above ambient, which means even with a 5GHz CPU overclock, I’m using significantly less power than you are—much less.

Looking at your wattage numbers, they’re showing an unusually high value of 141W on a 95W TDP CPU? Something seems off here, and it probably points to the motherboard.

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Notchhy
Junior Member
8
08-19-2017, 01:57 AM
#23
The power consumption under full load is being closely monitored (prime95 small fft). What is your actual draw while running prime95? If your motherboard is faulty, I’ll return it for replacement. I’m also concerned about the temperature of the AIO radiator when the CPU reaches 80-90 degrees—while it’s only slightly warm, not hot. The pump is spinning at full speed (the BIOS says 9000 rpm, but it’s likely around 3000).

My wattage readings during P95 26.6 Small FFTs won’t match yours because my C-states are disabled and I’m maintaining coolant temps 10°C below ambient, whereas yours stay consistently above ambient. That means even with a 5GHz CPU overclock, I’m drawing significantly less power than you are. However, looking at your readings, they’re showing excessively high values—141W on a 95W TDP CPU? That seems incorrect. There might be an issue with the motherboard.

I suspect there could be a problem with my AIO as well; I shouldn’t reach 85°C during prime (with AVX) at the stock turbo frequency of 4.3GHz. I’ve changed the paste three times, so it should be fine. Perhaps the water block isn’t seating properly on the CPU—maybe the screws are too long on the Intel mounting bracket. I’m considering switching to a Corsair H115i instead of my current CoolerMaster MasterLiquid 240 Pro. Would that be a better option? Also, I have the power limiter set to maximum, so it never throttles, which likely explains the 141W draw. Since I’m using prime95 with AVX and not 26.6, I got 107W at max and 73°C.
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Notchhy
08-19-2017, 01:57 AM #23

The power consumption under full load is being closely monitored (prime95 small fft). What is your actual draw while running prime95? If your motherboard is faulty, I’ll return it for replacement. I’m also concerned about the temperature of the AIO radiator when the CPU reaches 80-90 degrees—while it’s only slightly warm, not hot. The pump is spinning at full speed (the BIOS says 9000 rpm, but it’s likely around 3000).

My wattage readings during P95 26.6 Small FFTs won’t match yours because my C-states are disabled and I’m maintaining coolant temps 10°C below ambient, whereas yours stay consistently above ambient. That means even with a 5GHz CPU overclock, I’m drawing significantly less power than you are. However, looking at your readings, they’re showing excessively high values—141W on a 95W TDP CPU? That seems incorrect. There might be an issue with the motherboard.

I suspect there could be a problem with my AIO as well; I shouldn’t reach 85°C during prime (with AVX) at the stock turbo frequency of 4.3GHz. I’ve changed the paste three times, so it should be fine. Perhaps the water block isn’t seating properly on the CPU—maybe the screws are too long on the Intel mounting bracket. I’m considering switching to a Corsair H115i instead of my current CoolerMaster MasterLiquid 240 Pro. Would that be a better option? Also, I have the power limiter set to maximum, so it never throttles, which likely explains the 141W draw. Since I’m using prime95 with AVX and not 26.6, I got 107W at max and 73°C.

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Gamerking136
Member
58
08-20-2017, 07:57 PM
#24
nightmare392 :
I tested it at 26.6 and got 107 watts of power consumption with a maximum of 73°C. That feels more accurate! It's closer to what I expect for my #s running at 5ghz, though still higher than the stock levels.
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Gamerking136
08-20-2017, 07:57 PM #24

nightmare392 :
I tested it at 26.6 and got 107 watts of power consumption with a maximum of 73°C. That feels more accurate! It's closer to what I expect for my #s running at 5ghz, though still higher than the stock levels.

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SnailNugget
Junior Member
40
08-25-2017, 08:43 AM
#25
4Ryan6 :
nightmare392 :
I tested 26.6 now and it shows 107 W power draw with a max of 73 C. That's more believable!
It's closer to my specs at a 5ghz OC, but still too high for the stock unit.
I ordered a Corsair H115i just now. I'll pick it up tomorrow to check if temperatures improve. Once I fix the cooling issue, I'll try other OC settings to see if the motherboard is the problem.
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SnailNugget
08-25-2017, 08:43 AM #25

4Ryan6 :
nightmare392 :
I tested 26.6 now and it shows 107 W power draw with a max of 73 C. That's more believable!
It's closer to my specs at a 5ghz OC, but still too high for the stock unit.
I ordered a Corsair H115i just now. I'll pick it up tomorrow to check if temperatures improve. Once I fix the cooling issue, I'll try other OC settings to see if the motherboard is the problem.

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