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Overclocking and Stress Testing an I7 4790K

Perche25
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Its my first time overclocking and I am trying to follow the LTT guide on how to overclock this chip, but I feel like at his settings, my CPU is getting too hot. On a 5 minute stress test at 4.4 GHZ and at 1.25 V, the temperature gets to 100 Degrees Celsius on its hottest core and in the high 90s for the rest. I have the Swiftech H240 AIO for cooling, and the second the test is over the chip drops into the 40s. Is this normal?

 

 

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11 minutes ago, Perche25 said:

On a 5 minute stress test at 4.4 GHZ and at 1.25 V, the temperature gets to 100 Degrees Celsius on its hottest core and in the high 90s for the rest. I have the Swiftech H240 AIO for cooling, and the second the test is over the chip drops into the 40s. Is this normal?

What stress test are you using? I believe in something like Prime95 that's quite normal given your setup. Aida would probably show something similar.

 

Also, I bet you could get away with 4.5 or even 4.6 at 1.23

I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k - EVGA Z370 Classified K - G.Skill Trident Z RGB - WD SN750 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G3 650W - dual booting Windows 10 and Linux - Black and green theme, Razer brainwashed me.

Draws 400 watts under max load, for reference.

 

How many watts do I need? ATX 3.0 & PCIe 5.0 spec, PSU misconceptions, protections explained, group reg is bad

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Yes 100c on any core is much too hot. Back when I had my 4790k I ran it at 4.8ghz (don't remember the voltage) and it topped out around 80-85. Some of this is out of our control as this CPU is using a shitty paste between the die and the IHS, rather than solder. I had the H100i (CoolIt Pump) that helped bring temps down a bit, but 85 is still scorching. I personally wouldn't go over 90c so keep that in mind as your overclock.

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18 minutes ago, fasauceome said:

What stress test are you using? I believe in something like Prime95 that's quite normal given your setup. Aida would probably show something similar.

 

Also, I bet you could get away with 4.5 or even 4.6 at 1.23

I'm running powerMAX for the stress test

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41 minutes ago, Perche25 said:

Swiftech H240 AIO

the one with pump right behind the radiator blocking airflow from one of the two fans? No wonder why it got so hot.

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8 minutes ago, Perche25 said:

I'm running powerMAX for the stress test

I've never used it, but there is a warning at the top of the download page about damaging components so it seems pretty intense. How do your temps fare in gaming?

I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k - EVGA Z370 Classified K - G.Skill Trident Z RGB - WD SN750 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G3 650W - dual booting Windows 10 and Linux - Black and green theme, Razer brainwashed me.

Draws 400 watts under max load, for reference.

 

How many watts do I need? ATX 3.0 & PCIe 5.0 spec, PSU misconceptions, protections explained, group reg is bad

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6 minutes ago, fasauceome said:

I've never used it, but there is a warning at the top of the download page about damaging components so it seems pretty intense. How do your temps fare in gaming?

It's never been a problem. I'm running it on Prime95 now and I'm getting the same results

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5 minutes ago, Perche25 said:

It's never been a problem. I'm running it on Prime95 now and I'm getting the same results

yep, seems about right. In gaming if you're around 80 max you're all set, is that what you get?

I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k - EVGA Z370 Classified K - G.Skill Trident Z RGB - WD SN750 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G3 650W - dual booting Windows 10 and Linux - Black and green theme, Razer brainwashed me.

Draws 400 watts under max load, for reference.

 

How many watts do I need? ATX 3.0 & PCIe 5.0 spec, PSU misconceptions, protections explained, group reg is bad

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1 minute ago, fasauceome said:

yep, seems about right. In gaming if you're around 80 max you're all set, is that what you get?

yeah, usually no higher than 81

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3 minutes ago, Perche25 said:

yeah, usually no higher than 81

you can still drop the voltage of course, to see what the lowest stable is.

I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k - EVGA Z370 Classified K - G.Skill Trident Z RGB - WD SN750 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G3 650W - dual booting Windows 10 and Linux - Black and green theme, Razer brainwashed me.

Draws 400 watts under max load, for reference.

 

How many watts do I need? ATX 3.0 & PCIe 5.0 spec, PSU misconceptions, protections explained, group reg is bad

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