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Right, so as you probably know, I broke my H100i and sent it back in. I got a new one and decided to overclock again. This time however, at 1.25V and 4.5Ghz, my temperatures are A LOT higher. 

 

Before http://img713.imageshack.us/img713/6880/kzjp.png

 

and now I'm hitting 85°C with 1.200v @4.5ghz, what the hell?

 

At idle I'm getting 45°C'ish. 

My Gaming Rig;  Motherboard - ASUS Maximus VI Hero | CPU - Intel i5 4670k @4.5Ghz 1.25v | GPU - GIGABYTE GTX 980 @Stock | RAM -  16GB Corsair Vengeance @1866Mhz | CPU Cooler - Corsair H100i | Storage #1 - Samsung 840 Basic 250GB SSD | Storage #2 - Sandisk II 480GB SSD | Storage #3 - 2TB 7200rpm 64mb HDDPSU - Corsair HX750 | Case - Fractal Design R4 |

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The only thing I can suggest is you check the fitting and re apply thermal paste... the last time I had an issue with a H100i was because I did not put enough paste on... 

Lian Li PC-V359WRX Micro-ATX Case | Intel 5960X Extreme 3.00GHz | ASRock Fatal1ty X99M KILLER | Crucial 32 GB 2666 DDR4 | Thermaltake NiC C5 | EVGA Supernova 1200W P2 | 2x 240GB OCZ Radeon R7 | 2x 256 GB Samsung 840 Series Pro | 2 X 120GB Samsung 840 EVO | 6x NF-F12’s | Place Holder GPU R9 290X |

Links Current 5960X Old FX9590

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The only thing I can suggest is you check the fitting and re apply thermal paste... the last time I had an issue with a H100i was because I did not put enough paste on... 

 

I used the paste that's pre-installed. I'll do this tomorrow.

My Gaming Rig;  Motherboard - ASUS Maximus VI Hero | CPU - Intel i5 4670k @4.5Ghz 1.25v | GPU - GIGABYTE GTX 980 @Stock | RAM -  16GB Corsair Vengeance @1866Mhz | CPU Cooler - Corsair H100i | Storage #1 - Samsung 840 Basic 250GB SSD | Storage #2 - Sandisk II 480GB SSD | Storage #3 - 2TB 7200rpm 64mb HDDPSU - Corsair HX750 | Case - Fractal Design R4 |

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I used the paste that's pre-installed. I'll do this tomorrow.

 

Yea the pre installed paste can be very hit and miss...

Lian Li PC-V359WRX Micro-ATX Case | Intel 5960X Extreme 3.00GHz | ASRock Fatal1ty X99M KILLER | Crucial 32 GB 2666 DDR4 | Thermaltake NiC C5 | EVGA Supernova 1200W P2 | 2x 240GB OCZ Radeon R7 | 2x 256 GB Samsung 840 Series Pro | 2 X 120GB Samsung 840 EVO | 6x NF-F12’s | Place Holder GPU R9 290X |

Links Current 5960X Old FX9590

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Yea the pre installed paste can be very hit and miss...

 

Fair enough, I got some quality thermal paste laying around somewhere, I'll see tomorrow!

My Gaming Rig;  Motherboard - ASUS Maximus VI Hero | CPU - Intel i5 4670k @4.5Ghz 1.25v | GPU - GIGABYTE GTX 980 @Stock | RAM -  16GB Corsair Vengeance @1866Mhz | CPU Cooler - Corsair H100i | Storage #1 - Samsung 840 Basic 250GB SSD | Storage #2 - Sandisk II 480GB SSD | Storage #3 - 2TB 7200rpm 64mb HDDPSU - Corsair HX750 | Case - Fractal Design R4 |

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It could just be your chip. Or a faulty voltage regulator on the chip as they where moved onto the CPU itself. It could be the thermal paste you are using. Try and re-apply it with a smaller amount or just use a different paste. 

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That cpu is running at 4.7ghz not 4.5. A Haswell running at 85c sounds reasonable under full load. If you are concerned that this temperature is higher than it was before with the same cooler then that might be because of the fans running at a lower rpm.

2500k @ 4.8, R9 290x, 256GB Vertex 4, Filco Majestouch 2 Tenkeyless Brown, Logitech G602 Mouse, Kingwin Lazer 1000w Platinum PSU, Corsair Dominator Platinum RAM 8GB @1866, Asrock Extreme 3 Gen 3, Xonar U7, Sennheiser 598, Switch 810, Coolermaster Hyper 212 with 1x Noctua nf-f12

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Yea the pre installed paste can be very hit and miss...

 

I've applied some new thermal paste and AMAZING. With 4.5Ghz @ 1.25V I'm getting 56°C as my hottest core! Thanks a lot!

My Gaming Rig;  Motherboard - ASUS Maximus VI Hero | CPU - Intel i5 4670k @4.5Ghz 1.25v | GPU - GIGABYTE GTX 980 @Stock | RAM -  16GB Corsair Vengeance @1866Mhz | CPU Cooler - Corsair H100i | Storage #1 - Samsung 840 Basic 250GB SSD | Storage #2 - Sandisk II 480GB SSD | Storage #3 - 2TB 7200rpm 64mb HDDPSU - Corsair HX750 | Case - Fractal Design R4 |

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I've applied some new thermal paste and AMAZING. With 4.5Ghz @ 1.25V I'm getting 56°C as my hottest core! Thanks a lot!

 

RESULT ! nice one....

Lian Li PC-V359WRX Micro-ATX Case | Intel 5960X Extreme 3.00GHz | ASRock Fatal1ty X99M KILLER | Crucial 32 GB 2666 DDR4 | Thermaltake NiC C5 | EVGA Supernova 1200W P2 | 2x 240GB OCZ Radeon R7 | 2x 256 GB Samsung 840 Series Pro | 2 X 120GB Samsung 840 EVO | 6x NF-F12’s | Place Holder GPU R9 290X |

Links Current 5960X Old FX9590

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RESULT ! nice one....

 

Really appreciate your advice! <3

My Gaming Rig;  Motherboard - ASUS Maximus VI Hero | CPU - Intel i5 4670k @4.5Ghz 1.25v | GPU - GIGABYTE GTX 980 @Stock | RAM -  16GB Corsair Vengeance @1866Mhz | CPU Cooler - Corsair H100i | Storage #1 - Samsung 840 Basic 250GB SSD | Storage #2 - Sandisk II 480GB SSD | Storage #3 - 2TB 7200rpm 64mb HDDPSU - Corsair HX750 | Case - Fractal Design R4 |

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