Multiplier and CPU Voltage for i5-4690k?

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Haibrands

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Hello, I recently built a new computer. However I am fairly new to overclocking. Just a couple minutes ago, I went ahead and went to my BIOS and raised my multiplier to 45 so I now have my processor running at 4.5 GHz. Is this a reasonable speed? After that, I didn't know how much to raise my CPU Core Voltage so I looked around a little bit and decided it was safe to go for a 1.25 V. Will this hurt my computer? Can I run this 24/7? According to MSI Control Center, my CPU is currently at 41 C. Running a blend stress test from Prime95, it now says my CPU is at 79-82 C. Any suggestions?

Corsair H55 Quiet Edition CPU Cooler/ Liquid Cooling
Intel Core i5-4690k
MSI Z97 - Gaming 5 Motherboard
2 x 4 GB HyperX Fury 1866 MHz

A couple minutes later, my processor is now 84 C.
 
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FoxVoxDK
I'd suggest sticking with what you have for now, maybe invest in a more efficient CPU cooler when you can, but 100 or 200 MHz is not something you will notice in everyday use. Have fun! o/

Just FYI, the maximum temperature your CPU is rated for is 72 degrees so if you play around with voltage and OC'ing, keep it under those figures.
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FoxVoxDK

FoxVoxDK

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H80i, H100i, NH-D14/15 or something similar. The 4690k will live a good long life on 1.30 - 1.35 V. Read up a little on OC CPU, for one, some CPU's are very good little runners and might not even need a Voltage bump to endure overclocking.
 
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FoxVoxDK

FoxVoxDK

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Auto or stock voltage, still H55 is not up for full load prime95 even at stock voltages, methinks. What are you temps at stock voltages and multiplier while running prime 95 for 15 minutes? Stop the test if temperatures exceed 75 degrees Celsius.
 
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FoxVoxDK

FoxVoxDK

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Try yourself, lower it until it becomes stable, I'm guessing around 4.2 - 4.3 GHz. That's what OC'ing is all about, and every CPU is unique. I can't sit here and tell you that your CPU will act in this and that way.
There is no other way than trail and error.
 
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FoxVoxDK

FoxVoxDK

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I'd suggest sticking with what you have for now, maybe invest in a more efficient CPU cooler when you can, but 100 or 200 MHz is not something you will notice in everyday use. Have fun! o/

Just FYI, the maximum temperature your CPU is rated for is 72 degrees so if you play around with voltage and OC'ing, keep it under those figures.
 
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Haibrands

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Do you think I damaged my computer when i went for 1.25 Cpu Voltage? And how come I can't raise it from stock CPU voltage?
 
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FoxVoxDK

FoxVoxDK

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Not if it only ran for a few minutes, so no.

Because increasing the voltages increases heat output, more heat equals higher temperatures, your cooler is not meant for OverClocking. A hot CPU is CPU under great structural stress, it decreases its lifetime if exposed to too high temperatures over prolonged periods.

Get a high-end CPU water cooler or air cooler, keep temperatures under 70.
 
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