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[Asetek LCLC] Core i7 950 having issues

post #1 of 8
Thread Starter 
Hello forum,

This is my first post here. I hope I can get some useful help.

I have recently purchased a custom made system and it came with an Asetek LCLC cooler (just for the CPU). It has a Core i7 950 CPU mounted on a X58-UD3R board. I decided to try a little overclocking and went up to 3.8GHz (though I know people, especially with a good cooling system, can go as much as 4.2-4.4GHz easily with this CPU).

After about 10 mins of running Prime15, my core temperatures jumped to 90C. Shocked by this, I tried running everything at stock speeds => 85C.

I know these are not typical load temperatures especially with a supposedly good cooler. Taking advice from other people I purchased an AS5 thermal paste and reseat the heatsink following the instructions I found from the web. This has made absolutely no difference, my load temperatures still reach almost 90C even at stock speeds. Interesting fact is Prime seems to run stable for hours, but the temperatures are just too high.

So I started to think maybe there is something wrong with the cooler. So my question to you folks is what is a nice way to test if the cooler is functioning properly. When I open the case and hold the pipes they are hot, which means there is some heat transfer going on. I'm not sure if the problem is with the fan, the radiator, or what, but my system is overheating and I'd like to figure out why.

Any help is greatly appreciated. Thanks guys.

PS: One last thing, my case is a cooler master case with a lot of air coming in and going out, even with the case open my results won't change.
post #2 of 8
Did you remove the old thermal paste before you put the new stuff on?

When your CPU gets to those temperatures is the radiator really warm? If not then your block that you mounted to the CPU isn't mounted properly. If the radiator is really warm then...you might have a blockage, which you would have to return the cooling unit, or for what ever reason your unit simply can't cool an 950 (doubt this is the case).
X99
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X99
(14 items)
 
Nickle
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Workstation
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CPUMotherboardGraphicsRAM
I7-5960X ASUS Rampage V Extreme GTX 980 TI G. Skill DDR4 2400 
Hard DriveHard DriveHard DriveCooling
Samsung 850 Pro Intel 750 Samsung 950 Pro Cooler Master 212 
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Windows 10 Acer XB270HU Logitech G910 EVGA SuperNOVA 850 G2 
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Cosair 900D Logitech G502 
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i7 950 @ 4.1GHz 1.248V w/o HT Gigabyte UD3R MSI GTX 470 880/1760/2050 Cosair Dominator 6GB DDR3 
Hard DriveOptical DriveOSMonitor
2x Crucial SSD C300 64 GB 1x WD Caviar Black Liteon DVD/CD Win 7 64 Bit ASUS VE276Q 27" 1920x1080 
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Cooler Master Silent Pro M1000 Cooler Master HAF X 
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RAMHard DriveHard DriveHard Drive
Samsung M386A4G40DM0-CPB 256GB Samsung 850 EVO X4 Raid 10 Western Digital RE X3 Raid 5 Intel 750 SSD 
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Noctua DS14 Windows 10 Pro EVGA Supernova P2 750 Caselabs SM8 
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by CookieSayWhat View Post
Did you remove the old thermal paste before you put the new stuff on?

When your CPU gets to those temperatures is the radiator really warm? If not then your block that you mounted to the CPU isn't mounted properly. If the radiator is really warm then...you might have a blockage, which you would have to return the cooling unit, or for what ever reason your unit simply can't cool an 950 (doubt this is the case).
Thanks, this helps a lot. I'll check the radiator.

To answer your question, yes I removed all the old thermal paste from both the cooler and the CPU. However, I have a question. When I was applying the new thermal paste, I did like how it's shown on Arctic5's website, a line crossing the middle of i7. But I also put thermal paste on the cooler block. Was that a mistake? Is there ever such a thing as too much thermal paste?
post #4 of 8
Quote:
Originally Posted by Coolest View Post
Thanks, this helps a lot. I'll check the radiator.

To answer your question, yes I removed all the old thermal paste from both the cooler and the CPU. However, I have a question. When I was applying the new thermal paste, I did like how it's shown on Arctic5's website, a line crossing the middle of i7. But I also put thermal paste on the cooler block. Was that a mistake? Is there ever such a thing as too much thermal paste?
Yes the TIM if you apply to much will act as an insulator instead of a spreader. The whole reason for TIM is to a.) fill in the microscopic holes in the block and heat spreader to create an air free interface and allow better heat transfer. The ideal amount of TIM is a thin almost translucent layer on top of the cpu heat-sink. You can use a small flat surface or plastic lining over your finger to get it that thin but never spread it with your bare finger.
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post #5 of 8
Thread Starter 
Ok, so are you saying that I have to apply thermal paste to the cooler block as well, and not just the CPU?
post #6 of 8
No, you only apply thermal paste to the cpu.
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post #7 of 8
Thread Starter 
Here is what I did. I reapplied the thermal paste, this time only to CPU and not much changed. Then I took out the radiator and the fan, and reversed fan rotation.

Voila...3.8Ghz 12 hour prime temperatures are down to 78C from 92C. such a major difference, I wonder why the builders haven't done it in the first place.
post #8 of 8
Glad to here that helped a bit. I would think that cooling unit would do better than that. Is it push/pull or just pull?
X99
(14 items)
 
Nickle
(13 items)
 
Workstation
(15 items)
 
CPUMotherboardGraphicsRAM
I7-5960X ASUS Rampage V Extreme GTX 980 TI G. Skill DDR4 2400 
Hard DriveHard DriveHard DriveCooling
Samsung 850 Pro Intel 750 Samsung 950 Pro Cooler Master 212 
OSMonitorKeyboardPower
Windows 10 Acer XB270HU Logitech G910 EVGA SuperNOVA 850 G2 
CaseMouse
Cosair 900D Logitech G502 
CPUMotherboardGraphicsRAM
i7 950 @ 4.1GHz 1.248V w/o HT Gigabyte UD3R MSI GTX 470 880/1760/2050 Cosair Dominator 6GB DDR3 
Hard DriveOptical DriveOSMonitor
2x Crucial SSD C300 64 GB 1x WD Caviar Black Liteon DVD/CD Win 7 64 Bit ASUS VE276Q 27" 1920x1080 
PowerCase
Cooler Master Silent Pro M1000 Cooler Master HAF X 
CPUCPUMotherboardGraphics
Xeon E5 2675 V3 Xeon E5 2675 V3 Asus Z10PE-D16 WS GTX 980 TI 
RAMHard DriveHard DriveHard Drive
Samsung M386A4G40DM0-CPB 256GB Samsung 850 EVO X4 Raid 10 Western Digital RE X3 Raid 5 Intel 750 SSD 
CoolingOSPowerCase
Noctua DS14 Windows 10 Pro EVGA Supernova P2 750 Caselabs SM8 
OtherOtherOther
LSI 9361-8i Raid Card Intel X520-DA2 10Gb NIC Intel-280 Gigabit NIC 
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X99
(14 items)
 
Nickle
(13 items)
 
Workstation
(15 items)
 
CPUMotherboardGraphicsRAM
I7-5960X ASUS Rampage V Extreme GTX 980 TI G. Skill DDR4 2400 
Hard DriveHard DriveHard DriveCooling
Samsung 850 Pro Intel 750 Samsung 950 Pro Cooler Master 212 
OSMonitorKeyboardPower
Windows 10 Acer XB270HU Logitech G910 EVGA SuperNOVA 850 G2 
CaseMouse
Cosair 900D Logitech G502 
CPUMotherboardGraphicsRAM
i7 950 @ 4.1GHz 1.248V w/o HT Gigabyte UD3R MSI GTX 470 880/1760/2050 Cosair Dominator 6GB DDR3 
Hard DriveOptical DriveOSMonitor
2x Crucial SSD C300 64 GB 1x WD Caviar Black Liteon DVD/CD Win 7 64 Bit ASUS VE276Q 27" 1920x1080 
PowerCase
Cooler Master Silent Pro M1000 Cooler Master HAF X 
CPUCPUMotherboardGraphics
Xeon E5 2675 V3 Xeon E5 2675 V3 Asus Z10PE-D16 WS GTX 980 TI 
RAMHard DriveHard DriveHard Drive
Samsung M386A4G40DM0-CPB 256GB Samsung 850 EVO X4 Raid 10 Western Digital RE X3 Raid 5 Intel 750 SSD 
CoolingOSPowerCase
Noctua DS14 Windows 10 Pro EVGA Supernova P2 750 Caselabs SM8 
OtherOtherOther
LSI 9361-8i Raid Card Intel X520-DA2 10Gb NIC Intel-280 Gigabit NIC 
  hide details  
Reply
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