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4770k hitting 90c on specific stress tests

post #1 of 5
Thread Starter 
Hello, I just go some new toys and I wonder about 4770k as I found in search some strange results and it is the first time to see the big difference between different stress testing programs. Coming from 3770k, I didn't notice that and the vcore on the haswell acts very differently.

- Currently testing with AIDA64 FPU Stress test, the temp would climb instantly to 90c and just stays like that even if I leave the test running for hours, this is weird for me as normally the temp should increase little by little specially at the first 10minutes.
- Touching the heatsink, I can't feel any hot coming from it, that's also different compared to my ivybridge CPU, it can reports 80c and the HSF is much hotter to touch.
- Testing games, cinebench I found 4770 temps maxes at 60c
- The Vcore on the 4770k average 1.130 and 1.160 on the games but when I run the AIDA64 FPU test the vcore would go up to 1.23v.
- I didn't find any game can make the CPU go up to 1.23v except AIDA64 FPU/ Prime Small FFT.
- The vcore difference 1.130 ~ 1.230v on specific stress apps acts very different compared to the 3770k.

Hero
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i7 5820k MSI X99A SLi Krait EVGA GTX 960GB 4GB Kingston 32GB Fury X 2666MHz 
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Samsung SSD 850 EVO 500GB Noctua NH-U14S Windows 7 SP1 ASUS VS239 
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Hero
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i7 5820k MSI X99A SLi Krait EVGA GTX 960GB 4GB Kingston 32GB Fury X 2666MHz 
Hard DriveCoolingOSMonitor
Samsung SSD 850 EVO 500GB Noctua NH-U14S Windows 7 SP1 ASUS VS239 
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post #2 of 5
Nothing wrong here. FPU only test is insane and you should stick to regular stress test like Prime95 (the older versions) or even AIDA without just the FPU checked. thumb.gif
HELLRiDER
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CPUMotherboardGraphicsGraphics
Intel Core i7-4770K @ 4.6GHz GIGABYTE GA-Z87X-UD5H HIS R9 280 IceQ X² OC @ 1200/1600MHz HIS R9 280 IceQ X² OC @ 1200/1600MHz 
RAMHard DriveHard DriveCooling
G.SKILL F3-2133C9D-16GXH SAMSUNG Spinpoint F3 1TB SAMSUNG Spinpoint F3 1TB [CPU] Noctua NH-D14 w/ stock fans 
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[GPU] 2x AMD FX-Series Liquid Cooling w/ GT AP-30 Microsoft Windows 10 Pro Dell UltraSharp U2713H EVGA SuperNOVA 1300 G2 
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HELLRiDER
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Intel Core i7-4770K @ 4.6GHz GIGABYTE GA-Z87X-UD5H HIS R9 280 IceQ X² OC @ 1200/1600MHz HIS R9 280 IceQ X² OC @ 1200/1600MHz 
RAMHard DriveHard DriveCooling
G.SKILL F3-2133C9D-16GXH SAMSUNG Spinpoint F3 1TB SAMSUNG Spinpoint F3 1TB [CPU] Noctua NH-D14 w/ stock fans 
CoolingOSMonitorPower
[GPU] 2x AMD FX-Series Liquid Cooling w/ GT AP-30 Microsoft Windows 10 Pro Dell UltraSharp U2713H EVGA SuperNOVA 1300 G2 
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CORSAIR 300R Scythe Kaze Q-12 Fan Controller 
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post #3 of 5
What are you cooling it with ?
R2D2
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R2D2
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post #4 of 5
Thread Starter 
I'm trying to add my system specification but it doesn't want to show up.

I'm using Noctua NH-U14S
Hero
(12 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820k MSI X99A SLi Krait EVGA GTX 960GB 4GB Kingston 32GB Fury X 2666MHz 
Hard DriveCoolingOSMonitor
Samsung SSD 850 EVO 500GB Noctua NH-U14S Windows 7 SP1 ASUS VS239 
PowerCaseAudio
Seasonic X-850 KM3 Thermaltake Armor Revo Creative Sound Blade ZxR 
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Hero
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CPUMotherboardGraphicsRAM
i7 5820k MSI X99A SLi Krait EVGA GTX 960GB 4GB Kingston 32GB Fury X 2666MHz 
Hard DriveCoolingOSMonitor
Samsung SSD 850 EVO 500GB Noctua NH-U14S Windows 7 SP1 ASUS VS239 
PowerCaseAudio
Seasonic X-850 KM3 Thermaltake Armor Revo Creative Sound Blade ZxR 
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post #5 of 5
Thread Starter 
What do you guys think? I did over night AIDA64 stability with all the tests checked for 5 hours and max temp reached 80c with new settings @ 4.4
With this settings, z the max temp reached while playing BF3 for 2 hours was 70c
So it is only the FPU test or the Prime95 AVX small FFT which make the temp go crazy high even on stock, it was hitting 85c on stock.

Hero
(12 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820k MSI X99A SLi Krait EVGA GTX 960GB 4GB Kingston 32GB Fury X 2666MHz 
Hard DriveCoolingOSMonitor
Samsung SSD 850 EVO 500GB Noctua NH-U14S Windows 7 SP1 ASUS VS239 
PowerCaseAudio
Seasonic X-850 KM3 Thermaltake Armor Revo Creative Sound Blade ZxR 
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Hero
(12 items)
 
  
CPUMotherboardGraphicsRAM
i7 5820k MSI X99A SLi Krait EVGA GTX 960GB 4GB Kingston 32GB Fury X 2666MHz 
Hard DriveCoolingOSMonitor
Samsung SSD 850 EVO 500GB Noctua NH-U14S Windows 7 SP1 ASUS VS239 
PowerCaseAudio
Seasonic X-850 KM3 Thermaltake Armor Revo Creative Sound Blade ZxR 
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