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I have been trying to OC my fx 8350 over 4.6 ghz but my northbridge temp gets very high (95c) When my cpu gets to about 75C on prime 95. I am thinking of replacing the Sabertooth oem northbridge heat sink for a better one like this one 

http://www.microcenter.com/product/362236/NBRIDGE_8_Northbridge_Chipset_Cooler

But my question is will this void my motherboard warranty.

Sabertooth 990fx r2.0  

[CPU] i7 4790K OC [CPU Cooler] H100i [GPU] Evga GTX 980 SuperClocked [Ram] Corsair Vengeance 16 GB 1866 mhz [PSU] Cooler Master 1000w Silent Pro [storage] 256 GB Samsung 840 Pro, 1TB Seagate SSHD, 1 TB WD Blue 4 TB Seagate Nas. [Motherboard] Msi Z97 Gaming 5 [Case] Phantom 410 Red [sound] Onboard ALC 1150 [Headphones] Sennheiser HD 558 [Keyboard] Razer BlackWidow Chroma  [Mouse] Razer Deathadder Chroma [Mouse] Razer FireFly [Monitor] Asus MG278Q

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It will most likely void the warranty. Also what case do you have and how many fans for intake/outtake because it really should not be getting that high at all

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This is why you should not get an FX CPU for ANY scenario other than rendering on a budget http://linustechtips.com/main/topic/286142-fx-8350-r9-290-psu-requirements/?p=3892901 http://linustechtips.com/main/topic/266481-an-issue-with-people-bashing-the-fx-cpus/?p=3620861

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It will most likely void the warranty. Also what case do you have and how many fans for intake/outtake because it really should not be getting that high at all

 

 

that's super high for a sabertooth board

Currently I am using the haf 912 with a 200mm intake a 140 mm side intake, h100i at the top in push pull and a 120mm exhaust. AND a 80mm noctua fan blowing right on the VRM 

 

I am getting the phantom 410 soon

[CPU] i7 4790K OC [CPU Cooler] H100i [GPU] Evga GTX 980 SuperClocked [Ram] Corsair Vengeance 16 GB 1866 mhz [PSU] Cooler Master 1000w Silent Pro [storage] 256 GB Samsung 840 Pro, 1TB Seagate SSHD, 1 TB WD Blue 4 TB Seagate Nas. [Motherboard] Msi Z97 Gaming 5 [Case] Phantom 410 Red [sound] Onboard ALC 1150 [Headphones] Sennheiser HD 558 [Keyboard] Razer BlackWidow Chroma  [Mouse] Razer Deathadder Chroma [Mouse] Razer FireFly [Monitor] Asus MG278Q

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Do you have good case airflow? That should fix it. Also what are you doing that needs a 4.6ghz+ CPU?

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Wow, you can buy separate heat sinks for your mobo? #MindBlown

Current PC build: [CPU: Intel i7 8700k] [GPU: GTX 1070 Asus ROG Strix] [Ram: Corsair LPX 32GB 3000MHz] [Mobo: Asus Prime Z370-A] [SSD: Samsung 970 EVO 500GB primary + Samsung 860 Evo 1TB secondary] [PSU: EVGA SuperNova G2 750w 80plus] [Monitors: Dual Dell Ultrasharp U2718Qs, 4k IPS] [Case: Fractal Design R5]

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I had my Sabertooth & FX8350 at 4.8ghz at 1.51v stable temps under 65c CPU & motherboard temps lower than that.

Something sounds wrong.

Wow at 1.5 volts. Did you use northbridge OC or cpu multiplyer OC?

[CPU] i7 4790K OC [CPU Cooler] H100i [GPU] Evga GTX 980 SuperClocked [Ram] Corsair Vengeance 16 GB 1866 mhz [PSU] Cooler Master 1000w Silent Pro [storage] 256 GB Samsung 840 Pro, 1TB Seagate SSHD, 1 TB WD Blue 4 TB Seagate Nas. [Motherboard] Msi Z97 Gaming 5 [Case] Phantom 410 Red [sound] Onboard ALC 1150 [Headphones] Sennheiser HD 558 [Keyboard] Razer BlackWidow Chroma  [Mouse] Razer Deathadder Chroma [Mouse] Razer FireFly [Monitor] Asus MG278Q

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