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Poor cooling performance

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November 1, 2013 4:05:12 AM

I was finally getting around to over clocking my i7-3770k and found when I had it @4.4ghz core 1 reached 93c. That's seems awfully high to me given that I have a closed loop water block installed. I took everything back to stock and just loaded the cpu to 100% utilization with Prime and temps still seem a bit high coming in at 75c. From some of the forums I have seen the stock cooler run at temps like this. I did remove the cooler and reapply as5 and have the same results. The H80 is set up in a push pull configuration with air flow blowing out. The computer is in the basement and ambient room temperature is 67f (19c). It would appear that I have a bad unit.

System:
cpu -i7-3770k
mobo - Asus Maximus V gene
cooler - Corsair H80
case - Cooler master HAF - X

Any advise would be greatly appreciated.
a c 127 à CPUs
November 1, 2013 4:41:46 AM

What are the temps of the individual cores? Ivy uses TIM to transfer head from the die to the heatspreader, so its not unusual to have one or 2 cores much higher due to the poorer heat transfer.

You can delid and apply some better TIM between the die and the heatspreader, but this is at your own risk.

To be honest, 75'c on full load is acceptable, but obviously not great. My SB 2500k @ 4.6 only gets to about 60'c on prime on my Phanteks air cooler, but SB is soldered to the head spreader.
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November 1, 2013 5:31:45 AM

RobCrezz said:
What are the temps of the individual cores? Ivy uses TIM to transfer head from the die to the heatspreader, so its not unusual to have one or 2 cores much higher due to the poorer heat transfer.

You can delid and apply some better TIM between the die and the heatspreader, but this is at your own risk.

To be honest, 75'c on full load is acceptable, but obviously not great. My SB 2500k @ 4.6 only gets to about 60'c on prime on my Phanteks air cooler, but SB is soldered to the head spreader.



I was using Core temp 1.0 rc6 (stock speeds full load with prime for 10 minutes)
core0 - 65c
core1 - 75c
core2 - 69c
core3 - 67c
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a c 127 à CPUs
November 1, 2013 6:06:52 AM

jbdred said:
RobCrezz said:
What are the temps of the individual cores? Ivy uses TIM to transfer head from the die to the heatspreader, so its not unusual to have one or 2 cores much higher due to the poorer heat transfer.

You can delid and apply some better TIM between the die and the heatspreader, but this is at your own risk.

To be honest, 75'c on full load is acceptable, but obviously not great. My SB 2500k @ 4.6 only gets to about 60'c on prime on my Phanteks air cooler, but SB is soldered to the head spreader.



I was using Core temp 1.0 rc6 (stock speeds full load with prime for 10 minutes)
core0 - 65c
core1 - 75c
core2 - 69c
core3 - 67c


ah yes, core 0 and 3 temps look about right, with 1 and 2 higher.


Yeah I think that will be as good as you will get without delidding your cpu.
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November 1, 2013 9:52:27 AM

RobCrezz said:
jbdred said:
RobCrezz said:
What are the temps of the individual cores? Ivy uses TIM to transfer head from the die to the heatspreader, so its not unusual to have one or 2 cores much higher due to the poorer heat transfer.

You can delid and apply some better TIM between the die and the heatspreader, but this is at your own risk.

To be honest, 75'c on full load is acceptable, but obviously not great. My SB 2500k @ 4.6 only gets to about 60'c on prime on my Phanteks air cooler, but SB is soldered to the head spreader.



I was using Core temp 1.0 rc6 (stock speeds full load with prime for 10 minutes)
core0 - 65c
core1 - 75c
core2 - 69c
core3 - 67c


ah yes, core 0 and 3 temps look about right, with 1 and 2 higher.


Yeah I think that will be as good as you will get without delidding your cpu.



yeah I'll have to think about the delidding process. It looks a bit nerve racking. The potential of fubar'ing a $300 proc does not sit well. I wish friggen Intel did not take this approach of using a cheap TIM.

Well I decided to delid my cpu, I used the hammer and vice method and used Arctic Silver 5 TIM. I still don't see even core temps across all the cores and don't have much better temps at stock speeds. I did notice much better temps on overclocking.

After delid stock speeds (full load - Prime):
0: 60c
1: 70c
2: 64c
3: 61c

After delid 4.4ghz overclock (full load - Prime)
Core | before delid | after delid:
0 | 83 | 75
1 | 93 | 83
2 | 90 | 78
3 | 84 | 76

I guess with a $100.00 sealed water cooler i would have expected better performance.
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